Question
Explain the following terms with examples:
1. Skeleton equation
2. Balanced equation
3. Thermochemical equation.
Solution
1. Skeleton equation. It is an equation in which reactants and products are expressed in terms of symbols and formulae but the number of atoms of various elements on both the sides of the arrow 
may or may not be equal.
For example, consider the reaction of cupric oxide with ammonia to produce copper, nitrogen and water. The skeleton equation is
2. Balanced equation. It is a chemical equation representing a true chemical change in which the number of atoms of various elements on both the sides of the arrow
For example, balanced equation representing the reaction between cupric oxide and ammonia is
3. Thermochemical equation. A chemical equation which includes the heat changes taking place during the reaction is called thermochemical equation.
may or may not be equal.For example, consider the reaction of cupric oxide with ammonia to produce copper, nitrogen and water. The skeleton equation is
2. Balanced equation. It is a chemical equation representing a true chemical change in which the number of atoms of various elements on both the sides of the arrow
For example, balanced equation representing the reaction between cupric oxide and ammonia is3. Thermochemical equation. A chemical equation which includes the heat changes taking place during the reaction is called thermochemical equation.
