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Oksi-84 [34.3K]
2 years ago
8

Directions are in the picture

Chemistry
1 answer:
Mrrafil [7]2 years ago
6 0

Answer:

Question Clear

Explanation:

Make sure your question is clear.

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g The reaction; 4 Ag(s) + O2(g) ----> 2 Ag2O(s), is exothermic. Which statement about the reaction is correct? (A) It is spon
melomori [17]

Answer:

The correct answer is B. It is spontaneous only at low temperatures.

Explanation:

In thermodynamics, the Gibbs free energy is a thermodynamic potential that can be used to calculate the maximum of reversible work that may be performed by a thermodynamic system at a constant temperature and pressure.

The spontaneity of a reaction is given by the equation:

ΔG = ΔH - TΔS

where:

ΔH: enthalpy variation

T: absolute temperature

ΔS: entropy variation

As the reaction is exothermic, ΔH<0

As the reaction order increases (the reagents are solid and gas and their product is solid), ΔS<0

Therefore, the reaction will be spontaneous when ΔG is negative.

ΔG = ΔH - TΔS

That is, the entropy term must be smaller than the enthalpy term.

Hence, the reaction will be spontaneous only at low temperatures.

4 0
2 years ago
All molecules are made up of: <br> A)hydrogen <br> B)minerals <br> C)atoms <br> D)gas
masya89 [10]

answer c atoms

i think that is correct

4 0
3 years ago
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A solution of sodium iodide is added to a solution of potassium nitrate to make a potassium iodide precipitate and a sodium nitr
stich3 [128]

Answer:

NaNO3

Explanation:

Sorry If its incorrect

4 0
3 years ago
a gas chamber is filled with four gases. When a small opening is made in the gas chamber you expect which gas to escape last hyd
Nimfa-mama [501]
I really don’t know the answer, please help this kiddo with his question
8 0
3 years ago
Help me with this work plz plz
storchak [24]

Answer:

a -4

b - 8

c - 5

d 2

Explanation:

Significant Figures: The number of digits used to express a measured or calculated quantity. By using significant figures, we can show how precise a number is. ... Accuracy: Refers to how closely individual measurements agree with the correct or true value.

7 0
2 years ago
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