Question

when two or more substances combine to
form a single chemical substance
Example:​

Answer 1

Answer:

combination reaction

C+O2=CO2

Answer 2

Combination reactions occur when two or more substances combine to form a new substance.

An example could be lithium reacting with sulfur to give lithium sulfide. When magnesium burns in air, the atoms of the metal combine with the gas oxygen to produce magnesium oxide.

hope it helps you..... ✌️