part b give examples. check all that apply. hcl(aq) + koh(aq) → kcl(aq) + h₂o(l) h₂so₄(aq) + zn(oh)₂(s) →…

part b give examples. check all that apply. hcl(aq) + koh(aq) → kcl(aq) + h₂o(l) h₂so₄(aq) + zn(oh)₂(s) → znso₄(aq) + 2h₂o(l) nibr₂(aq) + k₂s(aq) → 2kbr(aq) + nis(s) 2zn(s) + o₂(g) → 2zno(s) h₂(g) + cl₂(g) → 2hcl(g)

part b give examples. check all that apply. hcl(aq) + koh(aq) → kcl(aq) + h₂o(l) h₂so₄(aq) + zn(oh)₂(s) → znso₄(aq) + 2h₂o(l) nibr₂(aq) + k₂s(aq) → 2kbr(aq) + nis(s) 2zn(s) + o₂(g) → 2zno(s) h₂(g) + cl₂(g) → 2hcl(g)

Answer

Explanation:

Step1: Recall acid - base reaction

An acid - base reaction produces a salt and water.

Step2: Analyze each equation

  • For $\mathrm{HCl}(aq)+\mathrm{KOH}(aq)\rightarrow\mathrm{KCl}(aq)+\mathrm{H}_{2}\mathrm{O}(l)$, $\mathrm{HCl}$ is an acid, $\mathrm{KOH}$ is a base, and they react to form the salt $\mathrm{KCl}$ and water.
  • For $\mathrm{H}{2}\mathrm{SO}{4}(aq)+\mathrm{Zn}(\mathrm{OH}){2}(s)\rightarrow\mathrm{ZnSO}{4}(aq)+2\mathrm{H}{2}\mathrm{O}(l)$, $\mathrm{H}{2}\mathrm{SO}{4}$ is an acid, $\mathrm{Zn}(\mathrm{OH}){2}$ is a base, and they form the salt $\mathrm{ZnSO}_{4}$ and water.
  • For $\mathrm{NiBr}{2}(aq)+\mathrm{K}{2}\mathrm{S}(aq)\rightarrow2\mathrm{KBr}(aq)+\mathrm{NiS}(s)$, this is a double - displacement reaction that forms a precipitate ($\mathrm{NiS}$), not an acid - base reaction.
  • For $2\mathrm{Zn}(s)+\mathrm{O}_{2}(g)\rightarrow2\mathrm{ZnO}(s)$, this is a combination reaction (oxidation of zinc).
  • For $\mathrm{H}{2}(g)+\mathrm{Cl}{2}(g)\rightarrow2\mathrm{HCl}(g)$, this is a combination reaction to form a compound.

Answer:

$\mathrm{HCl}(aq)+\mathrm{KOH}(aq)\rightarrow\mathrm{KCl}(aq)+\mathrm{H}{2}\mathrm{O}(l)$ $\mathrm{H}{2}\mathrm{SO}{4}(aq)+\mathrm{Zn}(\mathrm{OH}){2}(s)\rightarrow\mathrm{ZnSO}{4}(aq)+2\mathrm{H}{2}\mathrm{O}(l)$