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ChemistryChemistry
1 February, 09:42

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

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Answers (2)
  1. 1 February, 09:59
    0
    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.
  2. 1 February, 10:11
    0
    A. a decomposition reaction
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Home » Chemistry » 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.
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