## Question

###### Classify each reaction in as many ways as possible. (a) $2 \mathrm{Al}(s)+3 \mathrm{Cu}\left(\mathrm{NO}_{3}\right)_{2}(a q) \longrightarrow$ $2 \mathrm{Al}\left(\mathrm{NO}_{3}\right)_{3}(a q)+3 \mathrm{Cu}(s)$ (b) $\operatorname{HBr}(a q)+\mathrm{KHSO}_{3}(a q) \longrightarrow$ $\mathrm{H}_{2} \mathrm{O}(l)+\mathrm{SO}_{2}(g)+\mathrm{NaBr}(a q)$ (c) $2 \mathrm{HI}(a q)+\mathrm{Na}_{2} \mathrm{S}(a q) \longrightarrow \mathrm{H}_{2} \mathrm{S}(g)+2 \mathrm{NaI}(a q)$ (d) $\mathrm{K}_{2} \mathrm{

Classify each reaction in as many ways as possible. (a) $2 \mathrm{Al}(s)+3 \mathrm{Cu}\left(\mathrm{NO}_{3}\right)_{2}(a q) \longrightarrow$ $2 \mathrm{Al}\left(\mathrm{NO}_{3}\right)_{3}(a q)+3 \mathrm{Cu}(s)$ (b) $\operatorname{HBr}(a q)+\mathrm{KHSO}_{3}(a q) \longrightarrow$ $\mathrm{H}_{2} \mathrm{O}(l)+\mathrm{SO}_{2}(g)+\mathrm{NaBr}(a q)$ (c) $2 \mathrm{HI}(a q)+\mathrm{Na}_{2} \mathrm{S}(a q) \longrightarrow \mathrm{H}_{2} \mathrm{S}(g)+2 \mathrm{NaI}(a q)$ (d) $\mathrm{K}_{2} \mathrm{CO}_{3}(a q)+\mathrm{FeBr}_{2}(a q) \longrightarrow \mathrm{FeCO}_{3}(s)+2 \mathrm{KBr}(a q)$

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