Question

Burning magnesium gives us magnesium oxide. This is an example of a _____ reaction. ______ is the common element involved with all chemical reactions of this kind.
Blank 1. Combustion. Decomposition. Replacement. Synthesis.
Blank 2. Carbon. Hydrogen. Magnesium. Oxygen.

Answer 1

1 decomposition 2 oxygen

Answer 2

Answer:its {Combustion and Oxygen}

Explanation: combustion means to burn something and as we all know you need oxygen for anything to burn or catch fire