Question

Define chemical reaction?
what is a chemical equation??
why do we need to balance a chemical equation...???​

Answer 1

Q. what is chemical reaction?

Ans. A process that involves rearrangement of the molecular or ionic structure of a substance, as distinct from a change in physical form or a nuclear reaction.

Q. why do we need to balance a chemical equation...???

Ans. The chemical equation needs to be balanced so that it follows the law of conservation of mass. A balanced chemical equation occurs when the number of the different atoms of elements in the reactants side is equal to that of the products side. Balancing chemical equations is a process of trial and error.

hope helpful for you

Answer 2

Answer:

Chemical reaction is a process that involves rearrangement of the molecular or ionic structure of a substance, as distinct from a change in physical form or a nuclear reaction.

A chemical equation is the symbolic representation of a chemical reaction in the form of symbols and formulae, wherein the reactant entities are given on the left-hand side and the product entities on the right-hand side.

Balance a chemical equation:-

• Apply the Law of Conservation of Mass to get the same number of atoms of every element on each side of the equation.
• Once one element is balanced, proceed to balance another, and another, until all elements are balanced.
• Balance chemical formulas by placing coefficients in front of them.

Hope it helps! ! !