4 Compare and contrast the reactants and products in the two combustion reactions below.
Balance the formulas to allow you to refer to the numbers of molecules of each
reactant and product in your answer.

Combustion of Methane

Methane (CH) + Oxygen
Carbon dioxide + Water

Combustion of Hydrogen

Hydrogen + Oxygen >
Water

methane + oxygen → carbon dioxide + water

Explanation:

methane + oxygen → carbon dioxide + water methane + oxygen → carbon dioxide + water methane + oxygen → carbon dioxide + water

consider the reaction below.

 no rx

at 500 k, the reaction is at equilibrium with the following concentrations.

[pci5]= 0.0095 m

[pci3] = 0.020

[ci2] = 0.020 m

what is the equilibrium constant for the given reaction?

0.042

0.42

2.4

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