Fill in the coefficients that will balance the following reaction: a0nacl + a1cas → a2na2s + a3cacl2

Explanation: The coefficients of ,  ,  ,  and   are 2, 1, 1 and 1 respectively.

According to the law of conservation of mass, the mass of the products must be same as the mass of the reactants in every chemical equation.

In order to do so , the number of atoms of every element must be same on both sides of the equation and thus the chemical equation is balanced.

your parents i think this could be it

answer: -

reaction:

na + cl ⇌ nacl

balanced chemical equation:

na + 2cl ⇌ nacl2

sodium + clorine goes to form sodium chloride (table salt).

the product is nacl2.

and the reactants are na and cl.

(note: if you don’t know what ⇌ means, read below: -

⇌(double head arrow) means reversible reaction).