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Oduvanchick [21]
3 years ago
8

What happens when the calcium burns in the oxygen. write the chemical reaction​

Chemistry
1 answer:
Valentin [98]3 years ago
3 0

Answer:

Calcium can be ignited and will when burning react with both oxygen and nitrogen forming calcium oxide, CaO, and calcium nitride, Ca3N2.

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Synthesis of the activated form of acetate (acetyl‑CoA) is carried out in an ATP‑dependent process. Acetate+CoA+ATP⟶Acetyl−CoA+A
murzikaleks [220]

Answer:

\Delta G^{o} of the reaction is 1.7 kJ/mol.

Hydrolysis of the pyrophosphate shifts the equilibrium of the reaction to the right, making the formation of acetyl-CoA energetically more favorable.

Explanation:

The synthesis of acetyl CoA is as follows.

Form the given data,

Acetyl\rightarrow CoA \rightarrow Acetate+ CoA; \Delta G_{1}^{o}=-32.2\,kJ.mol^{-1}\\

ATP\rightarrow AMP+PP_{i};\Delta G_{2}^{o}=-30.5kJ.mol^{-1}

Total the above two steps we get,

Acetate+CoA+ATP\rightarrow Acetyl-CoA+AMP+PP_{i}

\Delta G^{o}=32.2+(-30.5)kJ.mol^{-1}=1.7kJ.mol^{-1}

Therefore, \Delta G^{o} of the reaction is 1.7 kJ/mol.

According to the Lechatelier's principle, a system at equilibrium always shows a tendency to regain the state of equilibrium., if equilibrium disturbed by an external factor only.

The enzyme inorganic pyrophosphotase catalyze the reaction.

The enzyme removes the ppi , one of the product in acetyl -CoA  reaction.

This would disturb the equilibrium therefore, system try to regain the state of equilibrium. And the equilibrium shifted to the right side.

Therefore, Hydrolysis of the pyrophosphate shifts the equilibrium of the reaction to the right, making the formation of acetyl-CoA energetically more favorable.

3 0
3 years ago
Mercury has a mass density of 13.54g/mL. How many milliliters would 100. Grams occupy?
Harman [31]

Answer:

The answer is

<h2>7.39 mL</h2>

Explanation:

The volume of a substance when given the density and mass can be found by using the formula

volume =  \frac{mass}{density}  \\

From the question

mass of Mercury = 100 g

density = 13.54 g/mL

The volume of the metal is

volume =  \frac{100}{13.54}  \\  \approx7.38552437...

We have the final answer as

<h3>7.39 mL</h3>

Hope this helps you

4 0
3 years ago
A[?] is a heterogeneous mixture which settles on standing and its components can be separated by filtration. colloid suspension​
Pani-rosa [81]

I think it should be suspension.

4 0
2 years ago
Read 2 more answers
Which will heat the fastest and heat the slowest??
maw [93]

Answer:

15. Which material will heat the fastest?

The answer is C.

16.  Which material will heat the slowest?

The answer is C.

4 0
3 years ago
A buffer solution contains 0.11 mol of acetic acid and 0.13 mol of sodium acetate in 1.00 L. What is the pH of this buffer?
aleksley [76]

Answer:

Henderson Hasselbalch equation: pH = pKa + log [salt]/[acid]

You need to know the pKa for acetic acid. Looking it up one finds it to be 4.76

(a). pH = 4.76 + log [0.13]/[0.10]

= 4.76 + 0.11

= 4.87

(b) KOH + CH3COOH =>H2O + CH3COOK so (acid)goes down and (salt)goes up. Assuming no change in volume, you have 0.10 mol acid - 0.02 mol = 0.08 mol acid and 0.13 mol salt + 0.02 mol = 0.15 mol salt

pH = 4.76 + log [0.15]/[0.08]

= 4.76 + 0.27

= 5.03

5 0
4 years ago
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