Question

Balance the equations below, then classify each reaction as synthesis, decomposition, single-replacement, or double replacement.

_NaClO2 ->_NaCl + _O2

Answer 1

If you count the number of each atoms in both sides, you'll find them to be equal; the equation is already balanced, so all of their coefficients is just 1 (which you wouldn't normally write). This is a decomposition reaction where sodium chlorite is being broken down into sodium chloride and oxygen.