Answer: 225.75g
Explanation:
Molar Mass of Fe(OH)2 = 56 + 2(16 + 1) = 56 + 2(17) = 56 + 34 = 90g/mol
1mole(90g) of Fe(OH)2 contained 6.02x10^23 units.
Therefore, Xg of Fe(OH)2 will contain 1.51x10^24 units
Xg of Fe(OH)2 = (90x1.51x10^24)/6.02x10^23 = 225.75g
Evaporation, condensation, and persipatation (sorry for spelling percipataion wrong 0n0)
60 pairs, because A and T are pairs, and C and G are pairs, and since there are only 2 different pairs, they both have to add up tobe 100, so 100-40=60
Answer:
In system A: A gas and a solid react to form a new solid product. the system entropy decreases.
In System B: Rubbing alcohol evaporates on the skin. liquid alcohol is converting to gas by evaporation so the system entropy increases.
Explanation:
Entropy is a thermodynamic quantity measure the degree of disorder of a certain system.
Gases have larger entropy compared to liquids which is larger than solids.
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(A) When a gas convert to a solid, its entropy decreases. ... because solids have less energy and entropy than solids.
So, in system A: A gas and a solid react to form a new solid product. the system entropy decreases.
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(B) Any chemical reaction that increases the number of gas molecules also increases entropy.
So, in System B: Rubbing alcohol evaporates on the skin. liquid alcohol is converting to gas by evaporation so the system entropy increases
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Answer:
B. price increases
Explanation:
as the supply decreases and demand increases the prices are increased to meet the demand and produce more