Question

Identify the type of equation:

2H2O ->2H2 + O2:

Answer 1

1. SYNTHESIS:
a. Formation of binary compound: A + B → AB
b. Metal oxide-water reactions: MO + H2O → base
c. Nonmetal oxide-water reactions: (NM)O + H2O → acid

2. DECOMPOSITION:
a. Binary compounds: AB → A + B
b. Metallic carbonates: MCO3 → MO + CO2
c. Metallic hydrogen carbonates: MHCO3 → MO+ H2O(l) + CO2(g)
d. Metallic hydroxides: MOH → MO + H2O
e. Metallic chlorates: MClO3 → MCl + O2
f. Oxyacids decompose to nonmetal oxides and water: acid → (NM)O + H2O

3. SINGLE REPLACEMENT:
a. Metal-metal replacement: A + BC → AC + B
b. Active metal replaces H from water: M + H2O → MOH + H2
c. Active metal replaces H from acid: M + HX → MX + H2
d. Halide-Halide replacement: D + BC → BD + C

4. DOUBLE REPLACEMENT: AB + CD → AD + CB
a. Formation of a precipitate from solution
b. Acid-Base neutralization reaction

5. COMBUSTION REACTION
Hydrocarbon + oxygen → carbon dioxide + water
Hope this helps! :)

Answer 2

this type of reaction is called Combination