Question

Use the activity series below to predict whether the following reactions will take place.

An activity series, listed as most reactive to least reactive: Upper L i, Upper K, Upper B a, Upper S r, Upper C a, Upper N a, Upper M g, Upper A l, Upper M n, Upper Z n, Upper C r, Upper F e, Upper C d, Upper C o, Upper N i, Upper S n, Upper P b, Upper H, Upper S b, Upper B i, Upper C u, Upper A g, Upper P d, Upper H g, Upper P t, Upper A u.

Upper A g plus upper N a upper N upper O subscript 3 right arrow upper A g upper n upper O subscript 3 plus upper N a.

Upper M n plus upper C a upper O right arrow upper C a plus upper M n upper O.

Answer 1

General rule: a metal will displace another metal from a compound only if it is above (more reactive than) that other metal in the activity series.

1) Ag + NaNO3 → AgNO3 + Na
- Silver (Ag) is below sodium (Na) in the activity series, so Ag is less reactive and cannot displace Na+.
- Reaction will not occur.

2) Mn + CaO → Ca + MnO
- Manganese (Mn) is below calcium (Ca) in the activity series, so Mn is less reactive and cannot displace Ca2+.
- Reaction will not occur.