| A | B |
|---|
| copper + iron sulphate | No reaction |
| iron + copper sulphate | iron sulphate + copper |
| copper + magnesium chloride | No reaction |
| Potassium + aluminium chloride | potassium chloride + aluminium |
| iron + zinc chloride | No reaction |
| zinc + iron chloride | zinc chloride + iron |
| Magnesium + aluminium sulphate | Magnesium sulphate + aluminium |
| Aluminium + magnesium sulphate | No reaction |
| Magnesium + iron chloride | magnesium chloride + iron |
| potassium + zinc sulphate | potassium sulphate + zinc |
| zinc + magnesium chloride | No reaction |
| magnesium + zinc sulphate | magnesium sulphate + zinc |
| copper + zinc chloride | No reaction |
| Zinc + copper sulphate | zinc sulphate + copper |
| copper + potassium chloride | No reaction |
| aluminium + zinc sulphate | aluminium sulphate + zinc |
| zinc + aluminium sulphate | No reaction |
| Copper + silver nitrate | Copper nitrate + silver |
| Lithium nitrate + sodium | Sodium nitrate + lithium |
| Lithium + potassium chloride | No reaction |
