CHEMISTRY [1 Mark Question Answer]

electrochemical reaction, any process either caused or accompanied by the passage of an electric current

An Exothermic reaction is a chemical reaction that involves the release of energy in the form of heat or light. What is a Combustion example

Endothermic reactions are chemical reactions in which the reactants absorb heat energy from the surroundings to form products

Activation energy is defined as the minimum amount of extra energy required by a reacting molecule to get converted into product

Energy is involved in a chemical change because of formation and breakdown of bonds. In exothermic reactions, energy is released and in endothermic reactions, energy is absorbed

The conditions of chemical change: color change, formation of a precipitate, formation of a gas, odor change, temperature change

Examples of chemical changes are burning, cooking, rusting, and rotting.