It is a reaction that occurs with absorption of electrical energy .
CH 2 CHEMICAL CHANGE AND REACTIONS
It is a reaction that occurs with absorption of light energy.
Substances such as methane, which undergo combustion readly and give out a large amount of energy are known as fuels.
The reaction in which heat is absorbed.
The reaction in which heat is evolved .
The reaction between an acid and a base that forms salt and water only is referred to as a reaction of neutralization.
A chemical reaction in which two copounds in their aqueous state react to form an insoluble salt as one of the products is known as Precipitation reaction.
This is a type of chemical change in which two compounds in a solutions react to form two new compounds by mutual exchange of radicals .
It is a chemical change in which a more active element displaces a less active element from its salt solution .
a reversible decomposition reaction brought about only by it is called thermal dissociation .