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Which chemical equation correctly represents the reaction that takes place when nitrogen gas and hydrogen gas are formed as ammonia decomposes? N(g) + H3(g) ? NH3(g) 2N(g) + 3H2(g) ? 2NH3(g) 2NH3(g) ? N2(g) + 2H3(g) 2NH3(g) ? N2(g) + 3H2(g)

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Answer:

D. 2NH₃(g) ⟶ N₂(g) + 3H₂(g)

Explanation:

A chemical equation must show the correct formulas for reactants and products.

A and B are wrong, because they have NH₃ as a product.

C is wrong. H₃ does not exist.

A is correct. The equation for the decomposition of ammonia is

2NH₃(g) ⟶ N₂(g) + 3H₂(g)

2NH₃(g) ⟶ N₂(g) + 3H₂(g) correctly represents the reaction that takes place when nitrogen gas and hydrogen gas are formed as ammonia decomposes. Hence, option D is correct.

What is a decomposition reaction?

A decomposition reaction occurs when one reactant breaks down into two or more products.

This can be represented by the general equation: AB → A + B.

Thus, 2NH₃(g) ⟶ N₂(g) + 3H₂(g) correctly represents the reaction that takes place when nitrogen gas and hydrogen gas are formed as ammonia decomposes.

Hence, option D is correct.

Learn more about the decomposition reaction here:

https://brainly.com/question/21491586

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