# Chapter 4 - Reactions in Aqueous Solutions - Questions & Problems - Page 161: 4.54

#### Work Step by Step

We know that a. $Cu_{(s)}+HCl_{(aq)}\rightarrow$no reaction because copper is less reactive than Hydrogen. b. ${I_2}_{(s)}+NaBr_{aq} \rightarrow$ no reaction because Iodine is less reactive than $Br_2.$ c. $Mg_(s)+{CuSO_4}_{(aq)}\rightarrow {MgSO_4}_{(aq)}+Cu_{(s)}$ d. ${Cl_2}_{(g)}+2KBr_{(aq)}\rightarrow 2KCl_{(aq)}$

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