Question

Identify the following reactions as combination, decomposition, or combustion reactions

C7H8 + 9O2 → 7CO2 + 4H2O ______________

2NaHCO3 → Na2CO3 + H2O + CO2 ___________

CH4 → C + 2H2O ________________

P4O10 + 6H2O → 4H3PO4 ______________

FeSO4 → FeO + SO3 _______________

CaCO3(s) → CO2(g) + CaO(s) _________________

Answer 1

1. combustion

2. decomposition

3. decomposition

4. combination

5. decomposition

6. decomposition

Step-by-step explanation:

combination of a reaction is when 2 more or elements/ compounds combine to form a compound. example: (A+B→AB)

decomposition of a reaction is when a chemical breakdown. example: (AB→A+B)

a combustion reaction is when an element/ compound reacts with oxygen to form the product of water and carbon dioxide.

example: (
`C_(x)`
`H_(y)` +
`O_(2)` →
`H_(2)`O +
`CO_(2)` )