Answer:
Explanation:
For an 18-Carbon saturated fatty acid (stearic acid), it will produce 9 Acety-CoA. Each Acetyl-CoA will enter the Krebs Cycle and will produce 12 ATP.
What is the maximum number of electrons that the 3d sublevel can hold?
Summarize the physical and chemical properties of zinc
Part 1: Name the type of chemical reaction that occurs when magnesium chloride solution (MgCl2) reacts with sodium carbonate solution (Na2CO3).
Part 2: Explain why aluminum (Al) would react with copper chloride (CuCl2) but not with magnesium chloride (MgCl2).
a) The reaction between magnesium chloride solution and sodium carbonate solution is a displacement reaction
b) Aluminum is above copper but below magnesium in the electrochemical series.
What is a displacement reaction?We know that a displacement reaction is the kind of reaction that occurs between two substances which involves an exchange of radicals. Now we know that a reaction would certainly produce a new kind of chemical substances.
A displacement reaction would occur if the substances that are involved in the reaction are far apart in the activity series. The metal that is more reaction would displace the metal that is less reactive from its salt.
Given the fact that sodium is higher than magnesium in the electrochemical series, then magnesium can be displaced from its solution by sodium
In part 2, the aluminum metal is ahead of copper in the electrochemical series hence aluminum is able to displaces copper from its solution but it is unable to displace magnesium from its solution because magnesium is above aluminum in the electrochemical series.
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1. The reaction between magnesium chloride solution and sodium carbonate solution is a displacement reaction
2. Aluminum is above copper but below magnesium in the electrochemical series.
Identify the following element based on its orbital filling diagram:
Answer:
Nickel
Explanation:
count the number of electrons in the 4p and 4d, total 8. After calcium count to 8 spots and you reach nickel. You must fill p orbital before d ortibal for stability.
Can you please help to learn more about chemical bonding cause I’m having a hard time learning it.
Answer:
Chemical bonding is the process by which atoms are held together to form molecules. The bond between atoms is created by the sharing of electrons. The electrons are attracted to the nucleus of the atoms, which creates a force that holds the atoms together.
Predict a product of the following reaction:
Al + CuCl2→
Answer:
CuCl2 + Aluminum = Chemical / Physical change
Which of the following animals are an example of coevolution? *
Acacia ant and acacias animals are an example of coevolution
Coevolution is the reciprocal evolutionary change in a set of interacting population over time resulting from the interaction between those population and an example of coevolution that is not characteristics of an arm race but one which provides a mutual benefit to both a plant species and insect is that of the acacia ant and acacia plant and many cases of coevolution can be found between plants and insects
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Identify the type of reaction for each chemical equation. *
5 points
1. Zn + 2HCI → ZnCl₂ + H₂
2.CH4 + 20₂ → CO₂ + 2H₂O
3. Na₂S + 2HCI →→2NaCl + H₂S
4. H₂CO3 → H₂O + CO₂
5. H₂ + O₂ → H₂O
Composition, decomposition replacement combustion
The type of reaction for each chemical equation is as follows:
1. Displacement reaction
2. Combustion reaction
3. Double displacement reaction
4. Decomposition reaction
5. Synthesis reaction.
Types of reactionsThe different types of chemical reactions include:
Displacement reaction: where an atom displaces another atom from a compound. For example, A + BC ---> AB + C. A displaced C from AB.Combustion reaction: a reaction in which a compound burns in oxygen. Double displacement reaction: a reaction in which two reactants exchange radicals to form two new products entirely. For example, AB + CD ---> AC + BDDecomposition reaction: a reaction in which a compound decomposes to produce two or more substances or compounds. For example, AB ---> A + BSynthesis reaction: a reaction that is the opposite of a decomposition reaction. Here, two atoms or substances combine to form a single compound or substance. For example, A + B ---> ABThus, the chemical equations and their respective reactions are as follows:
[tex]Zn + 2HCI -- > ZnCl_2 + H_2[/tex] - Single displacement reaction[tex]CH_4 + 2O_2 --- > CO_2 + 2H_2O[/tex] - combustion reaction[tex]Na_2S + 2HCI -- > 2NaCl + H_2S[/tex] - double displacement reaction[tex]H_2CO_3 -- > H_2O + CO_2[/tex] - decomposition reaction[tex]H_2 + O_2 -- > H_2O[/tex] - synthesis reactionMore on types of reactions can be found here: https://brainly.com/question/14203092
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A weather balloon has a volume of 556 L when filled with helium at 30 C at a pressure of 386 torr. What is the new volume of the balloon (in liters) if the balloon rises to a point where the air
pressure is 229 torr and the temperature is -9 C
The new volume of the balloon will be 484.43 L.
This is an example of Charles' law, sometimes called the temperature-volume law. It states that the volume of a gas is directly proportional to the Kelvin temperature, while pressure and amount are held constant.
The equation is V1/T1=V2/T2, where V is volume and T is temperature in Kelvins.
Known
V1=556 L
T1=30∘C+273.15=303 K
T2=-9∘C+273.15=264 K
Unknown
V2
Solution
Rearrange the equation to isolate V2. Substitute the known values into the equation and solve.
V2=V1T2/T1
V2=(556L×264K)/303K=484.43 L.
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Arrange the following transitions in from most energy absorbed to most energy emitted.
n=3 <— n=5
n=1 —> n=3
n=2 —> n=4
n= 2 <— n=4
n=3 <— n=5, n= 2 <— n=4 are most energy emitted and n=1 —> n=3, n=2 —> n=4 are most energy absorbed
In chemistry, energy is the capacity to carry out work. It may take on a variety of shapes, including potential, kinetic, thermal, electrical, chemical, radioactive, etc. Heat and labor are other examples of energy being transferred from one body to another. Once it has been transported, energy is always allotted according to its kind. Thus, heat transmission might manifest as thermal energy, but work could produce mechanical energy.
All energy kinds have the characteristic of motion. For instance, a body has kinetic energy if it is moving. A tensioned item, such as a spring or bow, has the capacity to move even while at rest; this property results from the design of the object, which incorporates potential energy.
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How are nuclear reactions different from chemical reactions?
Nuclear reactions involve a change in an atom's nucleus, usually producing a different element. Chemical reactions, on the other hand, involve only a rearrangement of electrons and do not involve changes in the nuclei. Different isotopes of an element normally behave similarly in chemical reactions.
I hope this helps!
What is the pH of a solution that has [H3O+] = 6.0 x 10-³ M?
Answer:
2.2
Explanation:
A flask with a volume of 125.0 mL contains air with a density of 1.241 g/L.What is the mass of the air contained in the flask?
Answer:
Below
Explanation:
125 ml = .125 L
.125 L * 1.241 g/ L = . 155 g
PLEASE HELP I LAREADY FAILED ONCE
What is the mass of 6.02 x 10^^24
molecules of hydrogen, H2? The molar
mass of H2 is 2.02 g/mol.
A- 2.02 g H2
B- 2.98 x 10^24 g H2
C- 10.0 g H2
D- 1.22 x 10^25 g H2
Answer: a
Explanation:
Step 3: Apply the scaling factor to the empirical formula. The scale factor is 5 and the empirical formula is CH2O.
What is the molecular formula?
C?H?O?
The molecular formula is (CH2O)5 when the scale factor is 5 and the empirical formula is CH2O.
Considering the question given above, the following data were obtained:
Empirical formula is CH₂O
Molar mass of compound = 150 g/mol
Scaling factor (n) =?
Empirical formula × n = molar mass
[CH₂O]n = 150
[12 + (2×1) + 16]n = 150
[12 + 2 + 16]n = 150
30n = 150
Divide both sides by 30
n = 5
Therefore, the scaling factor is 5
A scale factor is a ratio between corresponding measurements of an object and a representation of that object.In chemistry, the empirical formula of a chemical compound is the simplest whole-number ratio of atoms present in a compound. .Learn more about empirical formula at:
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Answer:
C 5 H 10 O 5
Explanation:
Please answer for my final ASAP
The table below shows the average wind speeds of four hurricanes in Florida.
Florida Hurricanes
Hurricane Average Wind Speed
(miles per hour)
A 160
B 95
C 140
D 103
Which hurricane most likely caused the greatest damage?
The hurricane that will most likely caused the greatest damage is option A: 140.
What is category 5 hurricane?It is one whose speed is 157 mph or more - There will be catastrophic damage: With complete roof failure and wall collapse, a significant portion of frame homes will be lost. Residential areas will be cut off by downed trees and utility poles. Power outages could linger for several weeks or even months. For several weeks or months, the majority of the area won't be habitable.
The most destructive storms are those in category 5, which have sustained winds of at least 157 mph.
Therefore, here, there is complete roof failure and wall collapse, a significant portion of frame homes will be lost. Residential areas will become isolated by downed trees and power lines. Power outages could linger for several weeks or even months.
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What are the four possible sub levels an electron can occupy?
Four possible sub levels an electron can occupy are s, p, d, f
A level that is lower than or subordinate to another level called as sublevel and electron fill principal energy level or shell to have lowest possible energy and within the shell they also fill the sublevel are s,p,d,f to have the lowest energy and so electron in orbital in the s sublevel called s orbital and have less energy than those in p sublevel and the s sublevel has just one orbital and so can contain 2 electron maximum and the p sublevel has 3 orbital and so can it contain 6 electron maximum and in d 5 orbital and it contain 10 electron and f has 7 orbital and it contain 14 electron maximum
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Carbon dioxide formation
Carbon dioxide is generated when any substance that contains carbon is burned. It is also a product of respiration and fermentation. Plants absorb carbon dioxide during photosynthesis.
The following reaction takes place: 2K + 2H20 ---> 2KOH + Hz
a. Calculate the number of moles of hydrogen that will be produced if 11.5 g of potassium are reacted.
b. Calculate the number of grams of hydrogen that will be produced in this same reaction.
As per the balanced reaction, 2 moles of potassium gives 2 moles of hydrogen molecules. Thus 11.5 g or 0.302 mol will produce 0.302 moles of hydrogen. The mass of 0.302 mol of hydrogen is 0.604 g.
What is hydrolysis ?Hydrolysis is the reaction of a substance with water to form hydroxides or hydrides. The given reaction is hydrolysis of potassium giving 2 moles of H2.
The atomic mass of potassium is 38 g/mol. Thus the mass of 2 mole of potassium is 38 × 2 = 76 g. The number of moles in 11.5 g K is 0.302 moles. 2 moles of potassium gives 2 moles of H2, thus 0.302 moles gives 0.302 moles of H2.
The molecular mass of H2 is 2 g/mol. Thus mass of 0.302 moles is 0.302 × 2 = 0.604 g.
Hence, the mass in grams of hydrogen produced is 0.604 g.
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How many grams of calcium are in 3.01 x 1022 atoms of calcium?
The amount, in grams, of calcium that are in 3.01 x [tex]10^{22[/tex] atoms of calcium would be 1.9992 grams.
Avogadro's numberAccording to the rules, 1 mole of any substance contains Avogadro's number, which is 6.022 x [tex]10^{23[/tex] atoms or molecules.
Now, we have a substance with 3.01 x [tex]10^{22[/tex] atoms of calcium.
If, 1 mole = 6.022 x [tex]10^{23[/tex] atoms
Then, 3.01 x [tex]10^{22[/tex] atoms = 3.01 x [tex]10^{22[/tex]/ 6.022 x [tex]10^{23[/tex]
= 3.01/60.22
= 0.04998 moles
Recall that:
Mole = mass/molar mass
The molar mass of the calcium atom is 40 g/mol.
Thus, the mass of 0.04998 mole of calcium = mole x molar mass
= 0.04998 x 40
= 1.9992 grams
In other words, 3.01 x [tex]10^{22[/tex] atoms of calcium would weigh 1.9992 grams of ca.
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If 96.3 g of A1203 decomposed, determine the percent yield of 02 if you
isolated 43.2 g 02.
2Al₂O3 →4A1+30₂
Your answer
25 points
2
I need answer asap
If actual yield and theoretical yield are same then the percent yield will be 100%. Generally, the actual yield is lower than the theoretical yield. The percent yield of 0₂ is 93%.
What is percent yield?Percent yield is the percent ratio of actual yield to the theoretical yield.
Mathematically,
Percent yield= actual yield of a product÷ theoretical yield of the product
The balanced reaction is
2Al₂O₃ →4A1+30₂
moles of Al₂O₃=given mass÷ molar mass
=96.3 g ÷100g/mol
=0.96moles
From 2 mole of Al₂O₃, 3 moles of 0₂ is produced
From 0.96moles of Al₂O₃=(3÷2)×0.96moles of 0₂
=1.44moles of 0₂
mass of 0₂=moles of 0₂×Molar mass of moles of 0₂
mass of 0₂=1.44×32
=46.08g
Percent yield= 43.2 g÷46.08g=93%
Therefore the percent yield of 0₂ is 93%.
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1 According to the law of conservation of mass, the total mass of the reacting substances is
A always more than the total mass of the products.
B always less than the total mass of the products.
C sometimes more and sometimes less than the total mass of the products.
D always equal to the total mass of the products.
According to the law of conservation of mass, the total mass of the reacting substances is
A. always more than the total mass of the products.
B. always less than the total mass of the products.
C. sometimes more and sometimes less than the total mass of the products.
D. always equal to the total mass of the products.
This is the one that I would have to choose.
Hope this helps:)
PLEASE HELP ASAP DUE TOMMOROW! (35 POINTS)
Were you able to correctly identify all of the minerals on the first try? Which identification test did you enjoy most? Why? Which identification test did you think was least helpful for identification? Why?
( 1 or more paragraphs please)
Plants that make edible fruits take advantage of which 2 benefits of this method of seed dispersal?
A. bees only pollinate flowers that will turn into edible fruits
B. seeds are often deposited in a pile of fertilizer
C. animals destroy the seeds
D. seeds are carried away from the parent plant
PLEASE HELP
What is the shielding constant of phosphorus?
Answer: shielding constant is +20.494 ppm for σ(P) and À0. 221 ppm for σ(H).
2. What kinds of events develop over oceans?
O avalanches
O hurricanes
O landslides
O solar flares
What would be the molarity of a solution made by dissolving 4.1 grams of NaCl (molecular mass: 58.44 g/mole) in water to a total volume of 0.4 liters
Taking into account the definition of molarity, the molarity of a solution made by dissolving 4.1 grams of NaCl in water to a total volume of 0.4 liters is 0.175 moles/L.
Definition of molarityMolar concentration or molarity is a measure of the concentration that indicates the number of moles of solute that are dissolved in a given volume.
The molarity of a solution is calculated by dividing the moles of solute by the volume of the solution:
molarity= number of moles÷ volume
Molarity is expressed in units moles/L.
This caseIn this case, you know:
Mass of NaCl= 4.1 gMolar mass of NaCl= 58.44 g/moleMoles of NaCl= Mass of NaCl÷ Molar mass of NaCl= 4.1 g÷ 58.44 g/mole= 0.07016 molesVolume= 0.4 LReplacing in the definition of molarity:
molarity= 0.07016 moles÷ 0.4 L
Solving:
molarity= 0.175 moles/ L
Finally, the molarity of the solution is 0.175 moles/L.
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Is copper a fcc or bcc?
Answer: copper is a fcc.
Explanation:
Solid copper can be described as the arrangement of copper atoms in a face-centered-cubic (fcc) configuration.
Solid copper can be described as the arrangement of copper atoms in a face-centered-cubic (fcc) configuration.
Two of the most recognizable crystal shapes are face-centered cubics (FCC) and body-centered cubics (BCC). There are FCC, BCC, or HCP structures for almost all elements.
The atomic configurations are where FCC and BCC crystals diverge most drastically. All 8 corner positions and the centers of each of the six faces are occupied by atoms in the face-centered cubic structure. All eight corner positions and the cube's center are occupied by atoms in the body-centered cubic structure.
Compared to BCC metals, FCC metals are often more ductile, more stable at high temperatures, and more dense. This is a result of their packaging design and slip systems.
The most effective atomic configuration is found in FCC (tied with HCP).
Because of this, we refer to FCC as a "close-packed" structure. FCC metals will typically be more dense and stable because FCC atoms are grouped more tightly together than BCC atoms.
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as a sample of radon decays by alpha emission, the number of daughter isotopes……..
When a sample of radon decays by alpha emission, the number of daughter isotopes is two.
What is radioactive decay?Radioactive decay refers to the process by which the nucleus of an atom decays spontaneously with the emission of radiation and the formation of one or more new daughter atoms with as smaller nuclei.
The emission of an alpha particle during radioactive decay involves the emission of helium nuclei.
The emission of alpha particles by radon is shown below:
²²²₈₆Ra ---> ²¹⁸₈₄Po + ⁴₂He
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A protein subunit from an enzyme is part of a research study and needs to be characterized. A total of 0.135 g of this subunit was dissolved in enough water to produce 2.00 mL of solution. At 28 ∘C the osmotic pressure produced by the solution was 0.138 atm . What is the molar mass of the protein?
The molar mass of the protein under the conditions that we have in this question can be obtained to be 12065 g/mol.
What is the molar mass of the protein?We know that the osmotic pressure is one the colligative properties of the solution. The colligative properties are the properties that depend on the amount of substance that is present in the solution.
Mass of the protein = 0.135 g
Volume of the solution = 2.00 mL
Temperature of the system = 28 ∘C + 273 = 301 K
Osmotic pressure of the solution = 0.138 atm
We can get the osmotic pressure from;
π = iCRT
π = Omotic pressure
i = Van't Hoff factor
C = concentration of the solution
R = gas constant
T = temperature
Let the molar mass of the protein be M
0.138 = 1 * 0.135/M/0.002 * 0.082 * 301
0.138 = 1 * 0.135/0.002M * 0.082 * 301
0.138 = 3.33/0.002M
0.138 * 0.002M = 3.33
M = 3.33/0.138 * 0.002
M = 12065 g/mol
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