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VikaD [51]
3 years ago
15

Which of the following contribute(s) to most of the mass of an atom?

Chemistry
2 answers:
Goryan [66]3 years ago
7 0
C) protons and neutrons
nataly862011 [7]3 years ago
6 0

Answer:

C) protons and neutrons

Explanation:

im pretty sure it is c

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For the reaction CO2(g) + H2(g)CO(g) + H20(g)
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Answer:

The ΔG° is 29 kJ and the reaction is favored towards reactant.

Explanation:

Based on the given information, the ΔH°rxn or enthalpy change is 41.2 kJ, the ΔS°rxn or change in entropy is 42.1 J/K or 42.1 * 10⁻³ kJ/K. The temperature given is 289 K. Now the Gibbs Free energy change can be calculated by using the formula,  

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= 41.2 kJ - 12.2 kJ

= 29 kJ

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