Fill in the blank with the appropriate term.
1. A(n) reaction is represented by the general equation A+BC.
2. The reaction H2CO2 + H2O + CO2 is a(n) reaction.
3. A(n) reaction is the reverse of a synthesis reaction.
4. The general equation A + BC + B + AC represents a(n) reaction.
5. A(n) replacement reaction produces two new compounds.
6. Replacement reactions involve the exchange of one or more .
7. The products of a combustion reaction include carbon dioxide and .