The reaction's statement for the equilibrium constant. To find x, substitute the final concentrations and the known K value. Determine each substance's final concentration in the reaction mixture.
How can Beer's law be used to determine equilibrium concentration?Beer's law can be expressed as a straight line with the equation y = mx + b. where m is the slope and l is the incline. In this scenario, calculate c, the concentration of the unknown solution, using the absorbance discovered for your unknown together with the slope of your best fit line.
What is chemistry's equilibrium formula?The amount of each chemical present at equilibrium is calculated using the equilibrium constant. Consider the following chemical reaction: aA+bB+cC+dD.
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the density of aluminum is 2.702 g/cm3. what is the final liquid level of water if 1.130 ounces of aluminum is dropped into a graduated cylinder containing 15.90 ml of water?
The final liquid level of water is 27.76 mL after considering the 1.130 ounce of aluminum dropped in cylinder.
Chemically speaking, aluminum is a 13-atomic-number chemical element with the symbol Al. Aluminum's density is lower than that of the majority of common metals, being around one third that of steel. Due of its high affinity for oxygen, it develops a protective oxide coating on its surface when exposed to air. It has a strong visual resemblance to silver due to its color and sparkling ability to reflect light. It is soft, ductile, and non-magnetic. It only has one stable isotope. It is a post-transition metal that belongs to the boron group chemically and typically forms compounds in the +3 oxidation state, like other members of the family. Aluminum typically coexists with oxygen in nature in the form of oxides due to its strong affinity for oxygen. As a result, it is typically found in rocks in the Earth's crust rather than in the mantle and is hardly ever discovered as a free metal. After silicon and oxygen, it is the third most prevalent element on Earth.
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Write structural formulas for the products of 1,2 and 1,4 addition of hydrogen chloride to 2,4−hexadiene.
The structural formulas for the products of 1,2 and 1,4 addition of hydrogen chloride to 2,4−hexadiene is verified.
Define structural formula.
Chemical formulas known as structural formulas can provide a more thorough understanding of a substance than molecular formulas.
Explanation:
For the given reaction,
The first double bond receives an addition of H-Cl in the 1,2-addition reaction; the second double bond is not involved in the reaction.
However, in the 1,4-addition reaction, the first step is the same, but the second step is different because the location of the second double bond changes and Cl- is added to the fourth carbon because the second double bond demonstrates the need to stabilize the carbocation.
The reactions are represented in the following image.
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which of the following can exist as cis-trans isomers? a. cyclohexane b. methylcyclohexane c. 1,1-dimethylcyclohexane d. 1,2-dimethylcyclohexane
The option d) is correct i.e. 1,2 - dimethyl cyclohexane which can exist as cis-trans isomers.
What are isomers?
Isomers are molecules that have the same chemical formula but different structures. This means that they contain the same number of atoms of each element, but they are arranged differently. Isomers can be divided into two categories: structural isomers, where the atoms are connected in different ways, and stereoisomers, where the atoms are connected the same way but arranged differently in space. An example of structural isomers is the difference between butane and isobutane, which are both made up of 4 carbons and 10 hydrogen atoms, but have different structures. An example of stereoisomers is the difference between D-glucose and L-glucose, which are both C6H12O6, but their atoms are arranged differently in space.
The compounds which same molecular formula and different connections are constitutional isomers.
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calculate the volume percent of solute in each of the solutions. a solution made by adding 23.9 ml of methyl alcohol to enough water to give 535 ml of solution.
For a solute to be quantified, one must know its mass or moles. By multiplying the grams of solute per gram of solution by 100, one may get the mass percent of a solution.
Why does the equation C1V1 C2V2 work?Because the overall amount remains constant, the starting concentration times the initial volume will equal the final concentration times the final volume. As a result, C1V1 = C2V2, which is an equation.
35 mL of ethanol and 65 mL of water combined to make a solution with a volume percent by volume of 35%. The mass or volume of solute required may also be determined if you know the concentration.
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what are examples of types of chemical markers associated with dna that determines when, where and by how much genes are expressed in each cell?
When, where, and how much genes are expressed in each cell are all regulated by the histone proteins and epigenetic elements.
Histone proteins:
The eukaryotic cells include histone proteins, which serve two purposes. They support preserving DNA in a compact state and control how flexible and tight DNA strands are, which controls how genes are expressed.
Epigenetic factors:
The substances known as epigenetic regulators alter the gene to control how the gene expresses itself. These modifications neither result in mutations nor are they heritable. These are the transient alterations, such as DNA remodeling, methylation, and alkylation.
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Which of thee will take the LONGEST time to oberve?
One moon-phae cycle
One ocean-tide cycle
An acorn growing into an adult tree
A caterpillar becoming a butterfly
A corn growing into an adult tree will take the longest time to observe. Hence, the third option will be correct.
Our moon completes one full orbit of the Earth in 27 days, 7 hours, and 43 minutes. Coastal locations see two high and two low ocean tides every 24 hours and 50 minutes because the Earth spins through two tidal "bulges" every lunar day. There are 12 hours and 25 minutes between the high tides. The sea level at shore can change from high to low or from low to high in the six hours and 12.5 minutes.55 to 95 days pass after corn is sown before it begins to produce mature ears. If you want to get scientific, the days that achieve a specific minimum threshold temperature are known as "increasing degree days," and they range from 55 to 95 in number.Depending on the species and the growth conditions, the butterfly stays in the caterpillar stage for a total of roughly 2 to 5 weeks.Thus the longest time is taken by the corn tree to grow into adult tree that is of 55 to 95 days.
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name the three alkenes using systematic names. a. a carbon carbon double bond where one alkene carbon is bonded to two methyl groups. the other alkene carbon is bonded to one methyl and one hydrogen. the name of compound a is: b. a carbon carbon double bond, where one alkene carbon is bonded to two hydrogens. the other alkene carbon is bonded to c h 2 c h 3 and c h 2 c h 2 c h 3. the name of compound b is: c. a carbon carbon double bond where one alkene carbon is bonded to two c h 3 groups. the other alkene carbon is bonded to c h 2 c h 2 b r and hydrogen. the name of compound c is:
Response to inquiry A: We choose a carbon chain with the greatest number of carbon atoms according to the IUPAC nomenclature standard. Since there are 4 carbon atoms in this chain, butane is the parent molecule. The double bo is present in the molecule.
The Interdivisional Committee on Terminology, Nomenclature, and Symbols and Division VIII - Chemical Nomenclature and Structure Representation are two IUPAC groups that play major roles in this activity. IUPAC is the widely acknowledged authority on chemical nomenclature and terminology. One of IUPAC's main activities is the development of recommendations to establish unambiguous, uniform, and consistent nomenclature and terminology for particular scientific fields. These recommendations are typically presented as glossaries of terms for particular chemical disciplines, definitions of terms relating to a group of properties, nomenclature of chemical compounds and their classes, terminology, symbols, and units in a particular field, classifications and uses of terms in a particular field, and co-references. The Recommendations are printed in the Pure and Applied journal of the IUPAC.
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what is the wavelength of radiation with a frequency of 2.50 x 10^15 HZ? Does this radiation have a longer or shorter wavelength than red light?
The wavelength of the light is 1200 nm and it is longer than red light.
What is the wavelength?The term wavelength has to do with the distance that has been traveled by a wave. We know that a wave is a disturbance on a medium that transfers energy and in this case, the red light is part of the electromagnetic spectrum of light.
We have the information from the question that the wavelength of radiation with a frequency of 2.50 x 10^15 HZ and the task that we have here is that we should be able to obtain the wavelength of the frequency that is given.
We then have;
c = λf
c = speed of the wave
λ = wavelength
f = frequency
Then;
λ = 3 * 10^8/ 2.50 x 10^15 HZ
λ = 1.2 * 10^-7 or 1200 nm
Since the wavelength of red light is 620 - 720 nm hence this is definitely longer than red light.
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Most of the energy released in citric acid cycle reactions is conserved in ________.
The majority of the energy released in citric acid cycle reactions is conserved in the form of adenosine triphosphate (ATP).
What is citric acid cycle?
The Krebs cycle, also referred to as the TCA cycle or the citric acid cycle (CAC), is a set of chemical reactions that releases stored energy by oxidising acetyl-CoA, which is inferred from carbohydrates, fats, as well as proteins. Organisms a certain respire (as compared to organisms a certain ferment) use the Krebs cycle to produce energy, either through anaerobic or aerobic respiration. The cycle additionally supplies the reducing agent NADH and precursors of a few amino acids that are needed in a variety of other reactions. It may have originated abiogenically and became one of the earliest elements of metabolism given its central role in many biochemical pathways.
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what is the emitted particle called that is responsible for each color observed?
The emitted particle is called photon which is responsible for the different color emission.
When an electron jumps from the higher energy orbit to a lower energy orbit, it releases energy in the form of photons (according to the particle theory of light), this is called photon emission.
The released photons will have different wavelengths and frequencies due to which photons will have different energies and color.
Like in chemical compounds, Heated compounds have acquired energy in the form of thermal energy. This thermal energy, if it is enough, excites electrons in any major atom in a compound or any singular lone atom so that the compound reaches one of its accessible excited states. This event is called an electronic excitation, and it leaves the compound less stable than in its ground state.
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Describe in a model with a caption how water can dissolve salts.
Must include:
001
molless
1. Water molecule and partial charges
2. Salt molecule and charges
3. Show interactions (attract and repel)
4. Show beginning, middle and end (undissolved, partially dissolved and fully
dissolved)
View
The ionic link that held sodium and chloride ions together is broken when water molecules force the ions apart. When the salt compounds are separated, water molecules surround the sodium and chloride atoms.
What is dissolution?The ionic link that held sodium and chloride ions together is broken when water molecules force the ions apart. As the salt compounds are separated, water molecules surround the sodium and chloride atoms.
In terms of energy, a solid can be dissolved into a solvent to create a solution in three steps.
Separation of a pure solid into distinct particles is the first step. Step 2: Pure solvent is divided into distinct particles. Combining the particles into a solution is step three.Thus, this way, salt dissolution takes place.
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at constant temperature, 7.72 l of cl2 at 458 mm hg is compressed to 3.75 l. what is the final pressure of cl2
At constant temperature, 7.72 L of cl2 at 458 mmHg is compressed to 3.75 L. The final pressure of Cl₂ is 942.86 mmHg.
To calculate the final pressure we can use the boyle's law
Boyle's Law:According to Boyle's Law, the relationship between a gas's volume and pressure is inverse. In other words, it says that as long as the number of gas moles remains constant, the product of pressure and volume for an ideal gas at constant temperature remains constant. P1V1=P2V2, where P1 is the first pressure, V1 is the first volume, P2 is the second pressure, and V2 is the second volume, is one way to state it.
So, the final pressure of Cl₂ can be calculate as follows:
P1V1=P2V2
458mmHg x 7.72 L = P2 x 3.75 L
P2 = 458mmHg x 7.72
3.75 L
P2 = 942.86 mmHg
Therefore, at constant temperature, 7.72 L of cl2 at 458 mmHg is compressed to 3.75 L. The final pressure of Cl₂ is 942.86 mmHg.
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A student collects the following data during an experiment. Experimental data mass of empty beaker 77. 25 g mass of 100 ml water 100. 00 g mass of salt 20. 00 g total mass before mixing 197. 25 g after the salt and water are mixed in the beaker and stirred for 1 minute, what will be the mass of the contents?.
The total mass of 197.25 g is made up of 100 g of 100 L of water, 20 g of salt, and 77.25 g beaker. Mass of empty beaker=mass of the content, By the Law of Conservation of Mass. 197.25 g - 77.25 g or 120 g.
What is the principle of mass conservation?According to the rule of conservation of mass, the combined mass of all reactants and products in a closed chemical reaction system will be equal. In other words, if 10g of reactant A and 5g of reactant B combine, the resulting product, AB, will weigh 15g. Mass is therefore retained.
How is the law of mass action calculated?As a result, according to the law of mass action, the equilibrium constant, at a given constant temperature, is equal to the product of the reactant concentrations, each raised to the corresponding stoichiometric coefficients, divided by the product of the concentration of products, raised to the respective.
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The liver filters the drug tylenol in an exponential way. Suppose tests show that after 12 hours pass, since taking a does of 400 milligrams, 50 milligrams remain in the blood stream. What is the half life of of tylenol?.
The half-life of Tylenol is 3.999, after getting filtered by the liver in exponential form.
What is Half-life?
The amount of time (half-life, [tex]t_{1/2}[/tex]) needed for a substance's quantity to decrease to half of its initial value. In a broader sense, the term is used to describe any exponential decay. In biology, the half-life of medications and other substances in the human body is considered in the medical sciences.
What is the Liver?
The liver is a significant organ in vertebrates and is responsible for detoxification as well as the production of the proteins and biochemicals required for growth and digestion. It is situated beneath the diaphragm in the right upper quadrant of the abdomen. It also controls how much glycogen is stored, breaks down red blood cells, and makes hormones.
What are the calculations?
N(t) = No × (1/2) t/t ½ (Formula for half-life)
Where,
N(t) = substance remaining
No = Initial quantity = 400
t = time elapse = 12
t ½ = Half-life
Here,
No =400
t = 12 hours
N × (12) = [tex]400 * (\frac{1}{2}) ^{\frac{12}{\frac{1}{2} } }[/tex]
50 = 400 (1/2)
Further simplifying = t ½ = 3.999.
Hence, the half-life of Tylenol is 3.999.
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what is the height of a column of liquid in a barometer if the density of the liquid is 0.99 g/ml and the local atmospheric pressure is 0.95 bar?
The height of a column of liquid in a barometer if the density of the liquid is 0.99 g/ml and the local atmospheric pressure is 0.95 bar is 0.791 m,
As we know that the relation of pressure and height is given as,
P = hρg
Where,
h is the height of the column
P is the pressure
ρ is the density
g is the acceleration due to gravity
Given,
P = 0.95 Bar
h = ?
ρ = 0.99 g/ml
Substitute the values to obtain the value of h,
∴ h = P/ρg
⇒ h = 0.95 Bar/(0.99 × 0.98)
⇒ h = 0.791 m
Hence, the height of a column of liquid in a barometer if the density of the liquid is 0.99 g/ml and the local atmospheric pressure is 0.95 bar is 0.791 m.
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given that the enthalpy of the reaction shown below is -2511.14 kj, how much energy would be produced if 20.5 g of c2h2 is combusted with excess o2?
Answer:
Hope this helps
Explanation:
hjnm
Biomolecules contain a variety of atoms. Which biomolecule maintains a ratio of 1 carbon atom to 2 hydrogen atoms to 1 oxygen atom?.
The biomolecule with this ratio is water (H2O).
What is biomolecule?
A loose term for molecules found in organisms and necessary for one or more typical biological processes, including such cell division, morphogenesis, as well as development, is "biomolecule" or "biological molecule." Large macromolecules (as well as polyelectrolytes) like proteins, carbohydrates, lipids, as well as nucleic acids, in addition to small molecules like primary metabolites, secondary metabolites, and natural products, are all examples of what is referred to as a biomolecule. Biological materials is a more inclusive term for this category of materials. Living organisms depend on exogenous biomolecules, such as certain nutrients, to survive even though endogenous biomolecules, which are produced inside the organism, are frequently necessary.
Water is made up of two hydrogen atoms bonded to one oxygen atom. This bond forms a covalent bond, with the oxygen atom sharing its two outer electrons with the two hydrogen atoms. This results in a ratio of 1 carbon atom to 2 hydrogen atoms to 1 oxygen atom.
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which of the following processes is spontaneous?6)a)reaction of sodium with oxygenb)water flowing uphillc)precipitation of solute from a saturated solutiond)a mixture of two gases separating into pure compounds
Process that is spontaneous is : d) mixture of two gases separating into pure compounds.
What is meant by spontaneous process?In thermodynamics, spontaneous process is that process which occurs without any external input to the system. A more technical definition can be the time-evolution of a system in which it releases free energy and moves to a lower, more thermodynamically stable energy state.
We can assess the spontaneity of process by calculating entropy change of the universe. If ΔSuniv is positive, then we can say that the process is spontaneous. As spontaneous processes are characterized by decrease in system's free energy, they do not need to be driven by an outside source of energy.
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Calcium carbonate decomposes if heated to form calcium oxide and carbon dioxide. If 24.5 g of calcium carbonate decompose how many moles of calcium carbonate reacted?
Calcium carbonate, CaCO3, decomposes to form calcium oxide, CaO, and carbon dioxide, CO2. The balanced chemical equation for this decomposition reaction is:
CaCO3 -> CaO + CO2
To determine the number of moles of calcium carbonate that react, you need to know the molar mass of calcium carbonate. The molar mass of calcium carbonate is 100.09 g/mol.
Now, you can use the molar mass of calcium carbonate to calculate the number of moles of calcium carbonate that react. To do this, divide the mass of calcium carbonate by its molar mass:
24.5 g CaCO3 / 100.09 g/mol = 0.2447 moles CaCO3
Therefore, 0.2447 moles of calcium carbonate react when 24.5 g of calcium carbonate decompose.
what are the coefficients in front of bro3-(aq) and br-(aq) when the following equation is balancedin an acidic solution: bro3-(aq) br-(aq) br2(aq)?
The coefficients in front of Bro3-(aq) and Br-(aq) when the equation( BrO3 -(aq) + 5 Br-(aq) + 6H+(aq)→ 3Br2(aq) + 3H2O (l)) is balanced in an acidic solution is : 1, and 5 respectively.
What is a balanced equation?A balanced equation is an equation for a chemical reaction in which number of atoms for each element in the reaction and the total charge are same for both reactants and the products. Both the mass and charge are balanced on both sides of the reaction in a balanced equation.
A balanced equation is a chemical equation in which mass is conserved and there are equal number of atoms of each element on the both sides of the equation.
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I need to make a mind mapping for chemistry, I need to use 100 words and my central topic is chemistry
Kilograms
Meters
Liters
Moles
SI Units
Scientific Notation.
Expanded Form
Metric Prefixes
Significant Figures
Magnetic
Conductive
Flammability
Reactive
Solubility
Mass
Physical Changes
Chemical Changes
States of Matter
Solid
Isotope
Isotope Symbol
Isotope Name
Charge
Octet Rule
Chemistry
Matter
Vocabulary Words (120 Total)
Particle Diagrams
Physical Properties
Chemical Properties
Intensive Properties
Extensive Properties.
Color
Luster
Length
Volume
Density
Radioactive
Toxic
Ductile
Malleable
Brittle
Metallic Bonding
Liquid
Average Atomic Mass
Ions
Shared Electrons
Transferred Electrons
Triple Bond
Gas
Phase Change
Melting
Freezing
Vaporization
Condensation
Sublimation
Deposition
Pure Substance
Mixture
Element
Compound
Homogeneous
Heterogeneous
Periodic Table
Demitri Mendeleev
Henry Moseley
Group
Period
Atom
Periodic Trends
Atomic Radius
Ionization Energy
Double Bond
MetalM
Nonmetal
Metalloids
Alkali Metals
Alkaline Earth Metals
Transition Metals
Halogens
Noble Gases
Lanthanides
Actinides
John Dalton
JJ Thomson
Ernest Rutherford
Niels Bohr
Subatomic Particles
Proton
Neutron
Electron
Nucleus
Energy Level
Emission Spectrum
Quantum Model
Metallic Bonding
Single Bond
Atomic Number
Atomic Mass
Valence Electrons
Lewis Dot Diagrams
Lewis Dot Structure
Ionic Bonding
Covalent Bonding
Sublevels
Orbitals
Orbital Diagram
Electron Configuration.
Aufbau Principle
Pauli Exclusion Principle
Hund's Rule
Electronegativity
Bohr Model
Exited State
Ground State
Photon
Light
Atomic Symbol
Cation
Anions
Delocalized Electrons.
Answer:
iamprogrbow (check explanation)
Explanation:
Kilograms
Meters
Liters
Moles
SI Units
Scientific Notation.
Expanded Form
Metric Prefixes
Significant Figures
Magnetic
Conductive
Flammability
Reactive
Solubility
Mass
Physical Changes
Chemical Changes
States of Matter
Solid
Isotope
Isotope Symbol
Isotope Name
Charge
Octet Rule
Chemistry
Matter
Vocabulary Words (120 Total)
Particle Diagrams
Physical Properties
Chemical Properties
Intensive Properties
Extensive Properties.
Color
Luster
Length
Volume
Density
Radioactive
Toxic
Ductile
Malleable
Brittle
Metallic Bonding
Liquid
Average Atomic Mass
Ions
Shared Electrons
Transferred Electrons
Triple Bond
Gas
Phase Change
Melting
Freezing
Vaporization
Condensation
Sublimation
Deposition
Pure Substance
Mixture
Element
Compound
Homogeneous
Heterogeneous
Periodic Table
Demitri Mendeleev
Henry Moseley
Group
Period
Atom
Periodic Trends
Atomic Radius
Ionization Energy
Double Bond
MetalM
Nonmetal
Metalloids
Alkali Metals
Alkaline Earth Metals
Transition Metals
Halogens
Noble Gases
Lanthanides
Actinides
John Dalton
JJ Thomson
Ernest Rutherford
Niels Bohr
Subatomic Particles
Proton
Neutron
Electron
Nucleus
Energy Level
Emission Spectrum
Quantum Model
Metallic Bonding
Single Bond
Atomic Number
Atomic Mass
Valence Electrons
Lewis Dot Diagrams
Lewis Dot Structure
Ionic Bonding
Covalent Bonding
Sublevels
Orbitals
Orbital Diagram
Electron Configuration.
Aufbau Principle
Pauli Exclusion Principle
Hund's Rule
Electronegativity
Bohr Model
Exited State
Ground State
Photon
Light
Atomic Symbol
Cation
Anions
Delocalized Electrons.
in 4.8 days the number of radioactive nuclei decreases to one-eighth the number present initially. what is the half-life (in days) of the material?
Radioactivity is a natural phenomenon by which a heavy unstable nucleus disintegrates into lighter and stable nuclei. The time after which the number of nuclei of original nucleus reduces to half is termed as half life.( t 1/2 )= 1.6 days.
How to solve?We are given:
time taken to reduce the radioactive nucleus to (1/8)th of original number is t = 4.8 days
Finding the half life, (t1/2)
Let n be the number of half lives, after which number of nuclei reduces to (1/8)th of original number, therefore
(1/2)n =1/8
n=3
Number of half lives passed in 4.8 days is n = 3, therefore half life is calculated as:
t1/2 =t/n
t1/2 =4.8 days/3
t1/2 =1.6 days
What does a decay half-life mean?A half-life is the amount of time it takes for something to go from 100% to 50%. The phrase is most frequently used in reference to radioactive decay, which happens when energetic atomic particles that are unstable lose momentum. There are 29 elements that have been shown to be capable of going through this process.
We compute half-life because...Knowing an element's alpha, beta, or gamma decay can help someone properly protect their body from excessive radiation. Within one half-life, the amount of radioactive nuclei present at any particular time will be reduced to half.
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You decide to flip a coin to determine whether to do your chemistry or physics homework first. The coin is flipped up. Compute for the velocity of the coin at the top of its trajectory.
For the coin that is being flipped straight up we have the velocity at top of its trajectory (at the maximum height) will be 0.
The velocity of the coin at the top of its trajectory is zero because in maximum height the ball will stop and then will start to move down.
The acceleration will be zero if there is no variation in velocity of the object. At the highest point, the object has the no or the zero kinetic energy where all of its kinetic energy is converted into potential energy . The velocity of coin will be momentarily zero when it reaches its maximum height.
Therefore the velocity will be zero and the object does not accelerate.
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Which of the following is NOT a part of adenosine diphosphate?
glucose, ribose, adenine, two phosphate groups
Answer:
a. glucose c. ribose b. adenine d. two phosphate groups user: all organisms need energy to perform different functions. cells are able to ...
5. Element X exists as diatomic molecules. In which group of the Periodic Table is X placed?
A Group 0
B Group I
C Group II
D Group VII
what is my actual yield of uranium hexabromide if i start with 100.0 grams of uranium and get a percent yield of 83.0% ? 301 grams ubr6
Actual yield of the chemical reaction provided is 197.54g.
In chemistry, yield or reaction yield refers to a measure of the quantity of moles of a product formed in relation to the reactant consumed, obtained in a chemical reaction, usually expressed as a percentage. The actual yield refers to the quantity of a product that is obtained from a chemical reaction. The calculated or theoretical yield refers to the amount of product that could be obtained from a reaction if all of the reactant converts to product.
Based on the equation:
U + 3Br2 → U Br6
The masses in the balanced chemical reaction are:
U = 238g
3Br2 = 3 x 160 = 480g
U Br6 = 718 g
The ratio of masses of Uranium to that of Bromine is less in the balanced chemical equation than that of in the given masses, hence Uranium is the limiting reagent. 100 g U will be consumed first and will act as a limiting reagent.
Percentage yield = Actual yield/ Theoretical yield *100
83 = Actual yield/ 238 *100
Actual yield = 197.54g
Note: The question is incomplete. The complete question probably is: U + 3Br2 → U Br6. What is my actual yield of uranium hexabromide if I start with 100 grams of uranium and 250 grams of bromine, and get a percent yield of 83%?
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the vsepr model is used mainly to multiple choice question. a) write resonance structures. b) determine molecular shape. c) measure intermolecular distances. d) determine ionic charge.
The VSEPR theory predicts the form of the molecule based on the bonding electron pairs and lone electron pairs around the core atom since molecular shape is dependent on the electrons surrounding the central atom.
How does the VSEPR theory describe the structure of molecules?Valence shell electron pair repulsion is the name given to the underlying concept in molecular structures (VSEPR). In essence, it states that because electron pairs are made up of negatively charged particles, they are attracted to one another and want to keep as far apart as possible.
Based on the number of valence shell electron bond pairs between the atoms in a molecule or ion, the valence shell electron pair repulsion (VSEPR) hypothesis is a model used to predict 3-D molecular shape.
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The table shows the first, second, and third ionization energies of four elements of Period 6. One of the elements is a noble gas. Use the information in the table to complete the sentences. An element may be chosen more than once or not at all. Ionization Energy (IE) kJ/mol First IE Second IE Third IE Element 1 812 1862 2634 Element 2 376 2234 3203 Element 3 503 965 3458 Element 4 1037 2064 2837 The noble gas is most likely Element Choose... . Of the four, Element Choose... has the largest atomic radius. The element which would form cations with a 2+ charge is Choose... .
1) The noble gas is element 4.
2) The element that has the largest atomic radius is element 4.
3) The element that would form a +2 cation is element 3.
What is the ionization energy?We define the ionization energy as the energy that we need so as to remove an electron from an atom. If the electron that we are referring to here is the first electron that is removed from the atom then we can call it more specificaly the first ionization energy. There are other ionization energies as more electrons are removed from the atom.
I see that it is important to say a couple of things about the noble gases that would help us decide on the answer. We know that the noble gas has to do with an element that is found in the eighteenth group of the periodic table and does has a complete octet.
This stability means that it is quite difficult to remove electrons from this atom hence the atom is quite stable.
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If The Bond Angle Between Two Adjacent Hybrid Orbitals Is 180 Hybridization?
A. Sp3
B. Sp
C. Sp2
D. Sp3d
If The Bond Angle Between Two Adjacent Hybrid Orbitals Is 180 Hybridization is Sp2.
What is an orbital, exactly?A space object appears to follow an orbit as it moves around another space object. A satellite is a spacecraft that orbits the planet. A natural satellites that matches the Earth nor moon is one possibility. Moons are satellites in the orbits of numerous nations. A man-made satellite, such as the Space Stations, provides an additional choice.
How are orbitals created?The positions of the electrons are dictated by the entire molecule when several atoms unite chemically to form a molecule, combining the atomic orbitals into molecular orbitals. The molecular orbitals are occupied by the electrons of the component atoms. There are two electrons in each orbital, and their spins vary. An atom's orbital is the area of space where an electron resides.
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the energy contained within covalent bonds in molecules is a type of potential energy called energy.
The energy contained within covalent bonds in molecules is a type of potential energy called chemical energy.
What is a chemical?
A chemical is any substance such as matter. This includes any liquid, stable, or fuel. A chemical is any natural substance (an detail) or any mixture (an answer, compound, or gas). they could both arise clearly or may be created artificially.If whatever manufactured from remember is made up of chemical compounds, which means that best phenomena that are not manufactured from be counted are not chemicals: power is not a chemical. mild, heat, and sound aren't chemicals—nor are thoughts, goals, gravity, or magnetism.obviously-going on chemicals may be solid, liquid, or gas. obviously going on solids, liquids, or gases may be made up of individual factors or may additionally contain many factors inside the form of molecules.To know more about chemical, click the link given below:
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