Answer:
Combination Reactions
Explanation:
That's not Double Replacements because DR is two different things change places with each other.
EX: A-B + C-D ---> A-D + C-B
Cl2 + Cu → CuCl2
This is Combination Reactions because CR is two or more things come together to make a single larger thing.
EX: A + B ---> A-B
