Which type of reaction occurs in the following? 2HgO (s) 2Hg (l) + O2 (g)

A. a decomposition reaction in which a metal is reduced

B. an acid-base neutralization reaction to produce oxygen gas

C. a displacement reaction involving two metals

D. a combustion reaction involving burning a metal in oxygen

Question

Chemistry

Rosa Riddle

2 February, 21:31

Which type of reaction occurs in the following? 2HgO (s) 2Hg (l) + O2 (g)

A. a decomposition reaction in which a metal is reduced

B. an acid-base neutralization reaction to produce oxygen gas

C. a displacement reaction involving two metals

D. a combustion reaction involving burning a metal in oxygen

+4

Answers (2)

Know the Answer?

Gustavo · Answer 1

Gustavo 3 February, 00:40

0

A. a decomposition reaction

Gracelyn Russo · Answer 2

In this reaction, reactant HgO decomposes into more than one products hence reaction is called decomposition. Hg in HgO has oxidation number of + 2 whereas oxidation number of Hg in product side is zero (zero because Hg is in its elemental form) so Hg is reduced. Hence A is correct option.

Which type of reaction occurs in the following? 2HgO (s) 2Hg (l) + O2 (g)A. a decomposition reaction in which a metal is reducedB. an acid-base neutralization reaction to produce oxygen gasC. a displacement reaction involving two metalsD. a combustion reaction involving burning a metal in oxygen