Question

Which of the following reactions will occur? check all that apply.

1) co(s) bai2(aq) → ?
2) sn(s) cubr2(aq) → ?
3) ag(s) nacl(aq) → ?

Answer 1

Only the reaction between tin (Sn) and copper(II) bromide (CuBr2) will occur because tin is higher in the reactivity series than copper. The other two reactions will not occur as carbon monoxide and silver are not strong enough to displace the metals from their respective compounds.

Step-by-step explanation:

The reactions in question are all examples of potential single-replacement reactions, which occur when an element displaces another element in a compound, producing a new compound and a pure element. We will look at the reactivity series of metals to determine if the reactions can occur. Metals higher in the series will replace metals lower in the series.

1) No reaction. Carbon monoxide (CO) does not replace the barium in barium iodide (BaI2).

2) The reaction is:
Sn(s) + CuBr2(aq) → SnBr2(aq) + Cu(s).
Tin (Sn) will replace copper (Cu) as it is higher in the reactivity series.

3) No reaction. Silver (Ag) is lower in the reactivity series than sodium (Na) in sodium chloride (NaCl), so it will not displace sodium.