What is Chemical Equation?
A chemical equation is the symbolic representation of a chemical reaction which is represented in the form of symbols and formulae. The main features
of a chemical equation is as follows:
- The reactants of an equation are written on the left-hand side.
- The products obtained is written on the right-hand side.
Here is an example of a chemical equation:
H 2 + O2 → H 2
What is Chemical Reaction?
Chemical Reaction is a process of transformation or rearrangement of the chemical substance into a new chemical substance by breaking of bonds between atoms and changing its physical form. Baking a cake, cooking an egg, mixing baking soda and vinegar to produce salt and carbon dioxide gas are few examples of chemical reactions.
Balancing a Chemical Equations
According to the law of conservation of mass, a mass can neither be created nor destroyed. We need to balance a chemical equation without changing the number of atoms of each element. Therefore, the total mass of the elements present in the products of a chemical reaction has to be equal to the total mass of the elements present in the reactants.
Lead + Lead oxide + sulphuric acid à Lead sulphate + Water.
The balanced chemical equation is written as:
Pb + PbO2 + H2SO4 → PbSO4 + H2O
Types of chemical reactions
There are five main types of chemical reactions. Listed below are the types of
- Combination Reaction.
- Decomposition Reaction.
- Double Displacement Reaction.
- Oxidation Reaction.
- Reduction Reaction.
Few Important Questions
- What is Corrosion?
- What is a Chemical Equation?
- What is a Combination Reaction?
- Explain precipitation reaction with suitable examples.
- Write the balanced equations for Zinc metal + Oxygen gas → Zinc oxide.
Learn more about Chemical Reactions and Equations from the topics given below:
|Chemical Equation||Types Of Chemical Reactions|
|List of Chemical Reactions||Balancing Chemical Equations|