Answer:Copper oxide + Hydrogen → Copper + Water
Copper sulfate + Zinc → Zinc sulfate + copper
Aluminium + Copper chloride → Aluminium chloride + copper
Copper + Oxygen → Copper oxide
Step-by-step 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.