Question

explain the type of reaction with reference to oxygen and hydrogen. illustrate with examples

Answer 1

oxidation Nd reduction

Answer 2

Hey dear,

● Chemical reaction -
- A chemical reaction is a process that leads to the chemical transformation of one set of chemical substances to another.
- There are 4 main types - combination, decomposition, displacement and precipitation.

1) Combination -
- Two or more compounds combine to form 1 compound.
- For example, formation of water,
2H2 + O2 ---> 2H2O

2) Decomposition -
- A complex molecule breaks down to make simple ones.
- For example, electrolysis of water,
2H2O ---> 2H2 + O2

3) Displacement -
- One element trades place with another element in a compound.
- For example, Zinc replaces copper from cuprous oxide,
Zn + CuO ---> Cu + ZnO

4) Precipitation -
- Two solutions of soluble salts are mixed resulting in precipitation of inslouble solid.
- For example, NaOH and HCl forms common salt,
NaOH + HCl ---> NaCl + H2O

Hope this helps...