The substances generated by the reaction are called products, and their formulas are placed on the right side of the equation.
What is a Chemical Reaction ?A chemical reaction is a process in which chemical bonds between atoms to break and recognize, to form other new substances.
What is Product and Reactant in a chemical reaction ?The substance which is present at the left hand side or start of a chemical reaction is known as Reactant.
The substance which is present at the right hand side or end of a chemical reaction is known as Product.
Example: Na + Cl → NaCl
Here Na and Cl are on the left hand side of a reaction so Na and Cl are reactants. Here NaCl is on the right hand side of a reaction so NaCl is product.
Thus from the above conclusion we can say that The substances generated by the reaction are called products, and their formulas are placed on the right side of the equation.
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When water evaporates, the energy that was used to evaporate the water is stored as ____________________ in the evaporated water.
Answer:
The energy that was used to evaporat the water is stored as sensible heat in the evaporated water
When water vapor condenses during the formation of clouds, energy releases into the atmosphere through latent heating.
2. Which of the following shows the correct, balanced equation for the reaction shown below?
CH4+0₂H₂O + CO₂
O CH, + O, → CHO
O CH4 +20₂ → 2 H₂O + CO₂ OCH, + O2 → H2O +CO,
OCH4 +0₂ → CH₂0
The balanced equation is [tex]\text{CH}_{4}+2\text{O}_{2} \longrightarrow \text{CO}_{2}+2\text{H}_{2}\text{O}[/tex].
The correct balanced chemical equation is CH₄ + 2 O₂[tex]\rightarrow[/tex] CO₂ + 2 H₂O.
What is chemical equation?Chemical equation is a symbolic representation of a chemical reaction which is written in the form of symbols and chemical formulas.The reactants are present on the left hand side while the products are present on the right hand side.
A plus sign is present between reactants and products if they are more than one in any case and an arrow is present pointing towards the product side which indicates the direction of the reaction .There are coefficients present next to the chemical symbols and formulas .
The first chemical equation was put forth by Jean Beguin in 1615.By making use of chemical equations the direction of reaction ,state of reactants and products can be stated. In the chemical equations even the temperature to be maintained and catalyst can be mentioned.
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The percent yield of alum is calculated based on the starting quantity of aluminum. Why can't the quantity of sulfuric acid be used to calculate the percent yield
The quantity of sulfuric acid may not be used because sulfuric acid is excessive and aluminum is limiting.
Limiting reactantsLimiting reactants in reactions are reactants that are present in lower stoichiometric quantities in comparison with other reactants.
Thus, limited reactants determine how far the reaction can go in terms of producing products.
Thus, the percent yield of alum might have been calculated based on the starting quantity of aluminum because the latter is the limiting reactant of the reaction.
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An acid is used to bring the pH of a solution from pH 9 to pH 6. How many times more acidic is the final solution than the initial solution? Select one: a. 100 b. 10 c. 3 d. 1000
An acid is used to bring the pH of a solution from pH 9 to pH 6 the many times more acidic is the final solution than the initial solution is that of option b. 10 .
Which is greater acidic a pH of 6 or a pH of 8?A pH much less than 7 is acidic. A pH more than 7 is simple. The pH scale is logarithmic and as a result, every entire pH fee underneath 7 is ten instances greater acidic than the subsequent better fee.pH much less than 7 is acidic. A pH more than 7 is simple. The pH scale is logarithmic and as a result, every entire pH fee underneath 7 is ten instances greater acidic than the subsequent better.
The pH is a degree of the attention of hydrogen ions, the acidity or alkalinity of a solution. The pH scale is commonly among zero and 14. Aqueous answers at 25 ° C with a pH of much less than 7 are acidic and simple or alkaline solution are people with a pH of more than 7.
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The radioactive decay of a sample containing an unknown radioactive isotope produced 6608 disintegrations per minute. 7.29 days later, the rate of decay was found to be 2932 disintegrations per minute. Calculate the half-life in days for the unknown radioactive isotope.
The half life is 0.47906yr
The uncertainty principle governs radioactive decay, making it impossible to predict with precision when a given nucleus will split apart and release a particle.
However, we can estimate the likelihood that a nucleus will dissolve in a specific amount of time.
We can foretell what portion of a huge number of nuclei will dissolve during that time.
Regardless of the isotope's quantity, this fraction will fluctuate based on each isotope's stability.
Alternatively, we can consider the issue in terms of how long it will take a specific fraction of an isotope to dissociate.
We have r0 = 6608 min–1 g–1, while r = 2932 min–1 g–1, and t = 7.29 days. Substituting into
we then have
ln r/r0 = −0.693*t / t1/2
ln (2932/6603) = -0.693 * 7.29 / t1/2
ln (0.44404) = -0.693*7.29/t1/2
t1/2 = (-0.693/-0.8118) * 7.29days
t1/2= 0.8536*7.29days
1yr = 28.1yrs
0.0199yr (7.29days) = 0.56123yr
t1/2 = 0.8536*0.56123
Half Life = 0.47906yr.
Hence the half life is 0.47906yr
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Please refer to the picture. Thank you!
The reaction which shows the beta particle being emitted is:
¹⁶⁸₆₈Er ⇒ ¹⁶⁸₆₇Ho + β⁰₋₁
What is Beta decay?This involves the emission of a beta particle as a result of the ratio of neutrons to protons in the nucleus being too high.
The element which is produced as a result of the beta particle emission is referred to as Holmium.
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A 120-milliliter mixture of Chemical X and water contained 40 percent Chemical X. A part of the mixture was removed and replaced with an equal quantity of water. If the resulting mixture contained 10 percent Chemical X, what is the volume of the mixture that was removed
The volume of the mixture that was removed is 90ml
Given that chemical percentage present in 120 ml of mixture = 40%
and resulting mixture contained 10% of Chemical X = 120 * 0.1 = 12ml
Volume is the quantity of three-dimensional space occupied by a liquid, solid, or gas. Common units used to express volume include liters, cubic meters, gallons, milliliters, teaspoons, and ounces, though many other units exist.
Let us assume that y be the volume of mixture removed
Therefore, we can re-write the equation as
0.4(120 - y) = 12
y = 90ml
Hence, 90ml was removed from the mixture
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The answer is 90 ml removed
what makes carcinogens so dangerous?
Answer:
A carcinogen is any substance that promotes carcinogenesis, which is a type of deadly cancer to humans so essentially you are asking why a cancer-causing substance is dangerous...
Carcinogens cause genetic abnormalities that become tumors. So I suppose they are really dangerous because they heavily increase the likelihood of developing cancerous tumors :)
Answer:
Carcinongens usually can cause the change in the genetic information (DNA) which leads to mutation. The mutation can make the organs out of control of reproduction and cause cancer.
Explanation:
Carcinogens can be chemicals, or anything that induce cancer.
25cc of 5 % naoh solution neutralized 30cc of h2so4 solution. what is the normality of h2so4?
What is the normality of H₂SO₄?
The normality of H₂SO₄ that was neutralized with 25 cc of NaOH is 1.1 N.
Molarity of 5% NaOH:
The molar mass of NaOH = 40.00
(Through density tables).
value of 5% NaOH solution density = 1.0554 g/mL.
∴ 10 × 5 × 1.0554/40.00 = 1.32 M.
Thus, Molarity of 5% NaOH = 1.32 M.
30 cc of H₂SO₄ the solution was neutralized with 25 cc of NaOH.
Reaction:
2 NaOH + H₂SO₄ → [tex]Na_{2}SO_{4}[/tex] + 2[tex]H_{2}O[/tex]
Molarity of H₂SO₄ = 1.32 × 1 × 25/(30×2) = 0.55 M.
Normality = Molarity × moles of H⁺ ions per mole of H₂SO₄
moles of H⁺ ions per mole of H₂SO₄ = 2
Normality of H₂SO₄ = 0.5 × 2 = 1.1 N.
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Decide whether the property measured was a chemical or physical property of X, if you can. If you don’t have enough information to decide, choose can’t decide in the third column
Answer:
See attachment for explanations.
Explanation:
A/n ____ replacement is when a metal replaces a metal in a single replacement chemical reaction.
Select one:
a.
acid
b.
anion
c.
cation
d.
base
anion
the reaction is called single displacement whereby an element is substituted by another in a compound
A cation replacement is when a metal replaces a metal in a single replacement chemical reaction.
What is chemical reaction?
Chemical reactions are defined as changes which occur when a substance combines with another substance to form a new substance.Alternatively, when a substance breaks down or decomposes to give new substances it is also considered to be a chemical reaction.
There are several characteristics of chemical reactions like change in color, change in state , change in odor and change in composition . During chemical reaction there is also formation of precipitate an insoluble mass of substance or even evolution of gases.
There are three types of chemical reactions:
1) inorganic reactions
2)organic reactions
3) biochemical reactions
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III. Look at Figure which shows solutions taken in test tubes A, B, C and D. What colour is expected when a piece of red litmus paper is dropped in each test tube? Nature of the solutions is given in the table for your help.
Neutral ----> No Change
Basic ----> Colour will change to
blue
Acidic ----> No change
Neutral ----> No change
hope this will the right answer &
Please attach a photo of the table next time.
☆...hope this helps...☆
_♡_mashi_♡_
The flask contains 10.0 mL of HCl and a few drops of phenolphthalein indicator. The buret contains 0.200 M NaOH. It requires 14.0 mL of the NaOH solution to reach the end point of the titration.
A buret filled with a titrant is held above a graduated cylinder containing an analyte solution.
What is the initial concentration of HCl
M₁V₁=M₂V₂
M₁ x 10 = 0.2 x 14
M₁ = 0.28
are oxidized to carboxylic acids with the ____________ , which is an oxidizing agent that contains silver oxide and aqueous ammonium hydroxide.
Aldehyde are oxidized to carboxylic acids with the Tollen's Reagent which is an oxidizing agent that contains silver oxide and aqueous ammonium hydroxide.
What is Aldehyde ?An Aldehyde is a functional group which contains the carbonyl group that is -C=O. The structure for aldehyde is R¹ - C = O - R² where R¹ and R² = H.
Example of Aldehyde is Methanal. The structure of Methanal is H - C = O - H.
What is Tollen's Reagent ?Tollens's Reagent is a classical reagent which is widely used in the detection of an aldehyde functional group, an alpha hydroxy ketone functional group and an aromatic aldehyde group in a given test substance.
Thus from the above conclusion we can say that Aldehyde are oxidized to carboxylic acids with the Tollen's Reagent which is an oxidizing agent that contains silver oxide and aqueous ammonium hydroxide.
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Disclaimer: The question was given incomplete on the portal. Here is the complete question.
Question: _________ are oxidized to carboxylic acids with the ________ which is an oxidizing agent that contains silver oxide and aqueous ammonium hydroxide.
How is Earth different from other planets?
OA. It has liquid water.
OB. It has mountains.
OC. It has a moon.
OD. It gets light from the Sun
Q: How many of the molecules shown contain only one covalent bond?
Cl₂ H₂ HCl N₂ O₂
A. 2 B. 3 C. 4 D. 5
Answer:
cl2 - 1 bond
HCl.- 1 bond
N2 - 3 bond
o2 - 2 bond
Cl requires one electron to complete it's octave so it share it's one electron with other chlorine and make a single covalent bond H has one electron and Cl requires one so both form one single bond N requires 3 electrons so it form 3 bonds with other N oxygen requires 2 electrons so it forms 2 bond with other oxygenQuestion 12(Multiple Choice Worth 1 points)
[OSS.01] The picture below shows an early model of the solar system.
Saturn
Jupiter
Mara
Sun
Vanua
Mercury
Moon
Stars
Source http://dawn.iol.nasa.gov/DawnClassrooms/1 hist dawn/history discovery/Exploration outside_box.pdf
Why is this model useful to scientists?
If the initial pressure of gas inside the balloon was 1.65 atm, what is the new pressure?
The new pressure of the gas is 4.95 atm.
What is the Boyles law?Boyles law states that the volume of a given mass of gas is inversely related to its pressure at constant temperature.
Given that;
V1 = 1.50 L
V2 = 0.50 L
P1 = 1.65 atm
Then;
P1V1 = P2V2
P2 = 1.65 atm * 1.50 L/ 0.50 L
P2 = 4.95 atm
The new pressure of the gas is found to be 4.95 atm.
Missing parts:
a balloon filled with a volume of 1.50 L is compressed to a volume of 0.50 L at a constant rate of temperature. if the initial pressure of the gas inside the balloon was 1.65 atm what is the new pressure?
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What would be the mass in grams of 0.300 moles of the ionic compound formed when magnesium metal reacts with oxygen
Answer:
Balanced Equation for reaction between Magnesium and Oxygen:
2Mg + O₂ --> 2MgO
Molar Mass of MgO is the atomic masses listed on the periodic table for the two elements Magnesium and Oxygen. Magnesium's molar mass is 24g/mol, and Oxygen's molar mass is 16g/mol. So MgO's molar mass would be 24 + 16 = 40g/mol.
The equation to find moles is:
[tex]moles \ = \ \frac{mass}{molar \ mass}[/tex]
So if we rearrange this equation to find for mass:
[tex]mass = moles \ * \ molar \ mass[/tex]
So you have to multiply 0.300 moles by 40, which gives you 12g
Meaning the mass of Magnesium Oxide is 12g.
Based on the information in the table, which of the following arranges the bonds in order of decreasing polarity?
Polarity is the chemical property based on the electric charge and orientation of the poles. Al−O>H−Br>As−S is arranged in decreasing order of polarity. Thus, option d is correct.
What is polarity?Polarity is a chemical property of the distribution of the electrical charges over their respective atom in the molecule joined by the bonds. The relation between the polarity and the difference in electronegativity is directly proportional.
The electronegativity difference between the elements are:
Al−O = 1.8H−Br = 0.8As−S = 0.4As the electronegativity difference between Al−O = 1.8 is the highest it will have the highest polarity followed by H−Br = 0.8, and As−S = 0.4, with the lowest polarity.
Therefore, option D. Al−O>H−Br>As−S is arranged in decreasing order of polarity.
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Chlorine and bromine have very similar chemical properties. This is best explained by the fact that both elements:
What is the similarity between chlorine and bromine?
Chlorine and bromine have very similar chemical properties and are best explained by the fact that they both belong to the category of halogens.
Similarities shared by halogens:
Chemical elements are represented as periods and groups on a periodic table. Chemical elements with comparable properties make up each category. Halogens are group 17 elements that are primarily non-metallic.
In the case of halogens, each element's atom possesses seven valence electrons, [tex]ns^{2} np^{5}[/tex], in which n stands for the energy level. The electron configuration of chlorine is [tex][Ne]3s^{2} 3p^{5}[/tex], and the electron configuration of bromine is [tex][Ar]3d^{10}4s^{2} 4p^{5}[/tex].
Because of comparable electron configurations, elements of the same group have similar properties. The number of valence electrons, which are located in the outermost (highest energy) s and p orbitals, is particularly similar.
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Drag the tiles to the correct boxes to complete the pairs.
Match each orbiting body to its attribute.
varies greatly in size
from one to the next
has a characteristic
glow
usually burns up if it
enters Earth's atmosphere
primarily made of hydrogen
and helium
comet
arrowRight
meteoroid
arrowRight
gas giant
arrowRight
asteroid
The match up of the left to the right column is;
1. Asteroid - A) varies greatly in size from one to the next
2. Gas Giant - B)atmosphere is primarily made of hydrogen and helium
3. Comet- C) has a characteristic glow
4. Meteoroid - D) usually burns up if it enters the earth's atmosphere
What is asteroid and meteoroid?An asteroid is known to be a kind of a small rocky object that is said to often orbits the Sun.
Note that an meteor is known or regarded as what occurs if ]a small piece of an asteroid or comet, known to be a meteoroid, burns up when they enter Earth's atmosphere.
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Answer:
edmentum :)
Explanation:
If a calculation calls for you to convert from an amount of one substance in a given chemical reaction to the corresponding amount of another substance participating in the same reaction, it is an
The question is incomplete. Please read below to find the missing content.
By way of searching the coefficients, you may see that for each 1 mole of C6H12O6, 2 moles of CO2 are produced. Using this ratio, you can figure out what number of moles of carbon dioxide are crafted from five moles of glucose.
Stoichiometry permits us to make predictions about the outcomes of chemical reactions. Making beneficial predictions is one of the important dreams of science, the other being the ability to provide an explanation for phenomena we have a look at inside the natural world.
Stoichiometry can be tough as it builds upon a number of character capabilities. To be successful you need to grasp the abilities and learn how to devise your hassle-solving method. Master every one of those skills earlier than moving on, Calculating Molar Mass.
If a calculation calls for you to convert from an amount of one substance in a given chemical reaction to the corresponding amount of another substance participating in the same reaction, it is an equation Stoichiometry problem.
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A jet airplane reaches 892. KM/H on a certain flight. What does synthesis cover in 14.0 minutes? Set up the map but don’t do any of it just leave your answer as a math expression.
The distance traveled by the jet airplane at the given speed and time of motion is 207.84 km.
What is distance?
Distance is scalar quantity that measures how far apart objects or points are.
It can also be defined as the physical length or an estimation based on other criteria.
Distance covered by the jet airplaneThe distance traveled by the jet airplane at the given speed and time of motion is calculated as follows;
D = speed x time
D = (892 km/h) x (14/60 h)
D = (892 km/h) x (0.2333 h)
D = 207.84 km
Thus, the distance traveled by the jet airplane at the given speed and time of motion is 207.84 km.
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7. Explain how magnetic potential energy can be transformed into kinetic energy. (1
point)
An oxygen (O2) molecule is adsorbed on a patch of surface (see sketch at right). This patch is known to contain 324 adsorption sites. The (O2) molecule has enough energy to move from site to site, so it could be on any one of them. Suppose additional surface becomes exposed, so that 400 adsorption sites are now available for the molecule. Calculate the change in entropy. One way an O, molecule could be adsorbed on a patch of surface with 16 sites Round your answer to 3 significant digits,
The change in entropy is 2.91 x 10-24 J/K
For an ideal gas,
The entropy of a molecule, S = KB ln(W)
KB – Boltzmann constant (1.38065 x 10-23 J/K)
W – Equivalent microstates of the molecule.
Winitial = 324
Wfinal = 400
Sfinal – Sinital = KB ln(Wfinal) - KB ln(Winital)
ΔS = KB ln(Wfinal / Winital)
= (1.38065 x 10-23 J/K) * ln(400/324)
= 2.91 x 10-24 J/K
In the ideal gas law, the temperature of the hydrogen gas is determined if the volume and pressure of the gas are known.
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2- chloro,2,3- dihydroxy-3,4-dimethyl pentane structure of the organic compound
Answer:
As denoted by the prefix, pent-, the parent chain should have 5 carbons. The numbers specify one which carbon in the parent chain (the pentane) the branch should be on. For instance, the chlorine branch should be on the second carbon.
Remember,
Chloro = Cl
Hydroxy = OH
Methyl = CH₃ (represented by a straight line)
How many individual oxygen atoms are contained in a sample of P2O5 that also
contains 0.620 moles of P? (Input your answer with scientific notation using "e-
The number of atoms of oxygen in the sample of P2O5 is 9.33 * 10²³ atoms.
What mole of oxygen atoms are in P2O5?A mole of the compound P2O5 contains 5 moles of atom of oxygen and 2 moles of P.
Moles of oxygen in the sample = 0.620 * 5/2 = 1.55 moles of oxygen atoms.
The number of oxygen atoms in 1 mole of oxygen atoms is given by the Avogadro number = 6.02 * 10²³
Number of atoms of oxygen in 1.55 moles -= 1.55 * 6.02 * 10²³ = 9.33 * 10²³ atoms.
Therefore, the Avogadro number is important in determining number of atoms in a compound.
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An alkene adds hydrogen in the presence of a catalyst to give 3,4-dimethylhexane. Ozonolysis of the alkene followed by treatment with zinc and acetic acid gives a single organic product. The structure of the alkene is: CH3 CH3CH
The structure of alkene is given below in the image.
Alkenes are described as both branched or unbranched hydrocarbons that possess at least one carbon-carbon double bond (CC) and feature a popular system of CnH2n [1].
Alkanes are organic compounds that encompass single-bonded carbon and hydrogen atoms. The formulation for Alkanes is CnH2n+2, subdivided into 3 companies – chain alkanes, cycloalkanes, and branched alkanes.
The geometry around each carbon atom is based totally on a trigonal planar shape, due to the fact, that each carbon has three electrons around it. This must make the angle of each bond one hundred twenty.
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Describe a simple experiment that's can be performed in the lab to demonstrate the formation of irone(iii) chloride from iron filling
The inorganic chemical having the formula [tex]FeCl_3[/tex] is "Iron(III) chloride"
It is a common compound of iron in the +3 oxidation state and is also known as ferric chloride. The crystalline solid anhydrous chemical has a melting point of 307.6 °C. The color changes depending on the viewing angle; crystals that reflect light seem dark green, while those that transmit light appear purple-red.
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