which type of reaction occurs in the following? 2hgo(s) → 2hg(l) + o₂(g) a decomposition reaction in which a…

which type of reaction occurs in the following? 2hgo(s) → 2hg(l) + o₂(g) a decomposition reaction in which a metal is reduced an acid - base neutralization reaction to produce oxygen gas a displacement reaction involving two metals a combustion reaction involving burning a metal in oxygen

which type of reaction occurs in the following? 2hgo(s) → 2hg(l) + o₂(g) a decomposition reaction in which a metal is reduced an acid - base neutralization reaction to produce oxygen gas a displacement reaction involving two metals a combustion reaction involving burning a metal in oxygen

Answer

Brief Explanations:

A decomposition reaction breaks a compound into simpler substances. Here, mercury - oxide ($HgO$) breaks down into mercury ($Hg$) and oxygen ($O_2$). Also, the oxidation state of mercury in $HgO$ is +2 and in elemental $Hg$ is 0, so the metal mercury is reduced. Acid - base neutralization involves an acid and a base reacting to form a salt and water. Displacement reaction has one element displacing another in a compound. Combustion reaction is a reaction with oxygen to release heat and light. This reaction is a decomposition reaction where a metal is reduced.

Answer:

a decomposition reaction in which a metal is reduced