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storchak [24]
4 years ago
7

Helppppppppppp please

Chemistry
1 answer:
tensa zangetsu [6.8K]4 years ago
6 0

Answer: one and 4

Explanation:

Just did it

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Mercuric oxide (HgO) is heated and forms liquid mercury (Hg) and oxygen (O2) gas. How would you characterize this reaction?
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Decomposition reaction.

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Decomposition reaction -

It is the type of reaction, where a single entity breaks down into various products under the influence of some external factors , like heat and sunlight , is referred to as a decomposition reaction.

From the question,

The reaction is -

2 HgO  →  2 Hg + O₂

Hence ,

A single compound HgO breaks down to two entities , i.e. , Hg and  O₂.

             

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