Question

What type of reaction matches with the correct description
Synthesis
Decomposition
Single Replacement
Double Replacement
Combustion

Answer 1

Here are the standard descriptions and patterns for each reaction type, with a short example:

- Synthesis (combination)
- Description: Two or more reactants combine to form a single product.
- General form: A + B → AB
- Example: 2H2 + O2 → 2H2O

- Decomposition
- Description: One compound breaks down into two or more simpler substances.
- General form: AB → A + B
- Example: 2H2O2 → 2H2O + O2

- Single replacement (single displacement)
- Description: One element replaces another element in a compound.
- General form: A + BC → AC + B (or BA + C → B + AC)
- Example: Zn + 2HCl → ZnCl2 + H2

- Double replacement (double displacement, metathesis)
- Description: The cations and anions of two compounds exchange partners; often produces a precipitate, gas, or weak electrolyte.
- General form: AB + CD → AD + CB
- Example: AgNO3 + NaCl → AgCl(s) + NaNO3

- Combustion
- Description: A substance reacts rapidly with O2, releasing heat (and light); hydrocarbons typically give CO2 and H2O.
- General form (hydrocarbon): CxHy + O2 → CO2 + H2O
- Example: CH4 + 2O2 → CO2 + 2H2O

If you have specific descriptions you need matched to these names, paste them and I’ll match each one.