Answer:
- Copper oxide + Hydrogen → Copper + Water
- Copper sulfate + Zinc → Zinc sulfate + copper
- Aluminium + Copper chloride → Aluminium chloride + copper
- Copper + Oxygen → Copper oxide
Explanation:
- Chemical reactions involves chemical combination of compounds or elements as reactants to form other compounds or elements.
- In this case, various reactants given will react exhibiting different types of chemical reactions to form products.
First reaction
Aluminium + Copper chloride → Aluminium chloride + Copper
- This is a single displacement reaction in which aluminium which is a more reactive element than copper displaces copper from its salt.
Second reaction
Copper oxide + Hydrogen → Copper + water
- It is another example of a single replacement reaction. Hydrogen displaces less reactive metals from their oxide to form water and the metal.
Third reaction
Copper sulfate + Zinc → Zinc sulfate + copper
- It is another single replacement reaction.
- Zinc is more reactive than copper and therefore replaces copper from its salt solution.
Fourth reaction
Copper + Oxygen → Copper oxide
- It is a synthesis reaction.
- A synthesis reaction is a reaction in which elements or small compounds combine to form single compound.
