Question

When barium chloride is allowed to react with silver nitrate to give barium nitrate and silver chloride, what are the coefficients for the balanced equation? ___BaCl2 (aq) + ___AgNO3 (aq) → ___AgCl (s) + ___Ba(NO3)2 (aq)

Answer 1

Answer: The coefficients of the chemical equation are 1, 2, 2, 1

Step-by-step explanation:

A balanced chemical equation always follow law of conservation of mass.

This law states that mass can neither be created nor be destroyed but it can only be transformed from one form to another form.

This also means that total number of individual atoms on reactant side must be equal to the total number of individual atoms on the product side.

For the given chemical reaction, the balanced equation follows:

`BaCl_2(aq.)+2AgNO_3(aq.)\rightarrow 2AgCl(s)+Ba(NO_3)_2(aq.)`

By Stoichiometry of the reaction:

1 mole of barium chloride reacts with 2 moles of silver nitrate to produce 2 moles of silver chloride and 1 mole of barium nitrate.

Hence, the coefficients of the chemical equation are 1, 2, 2, 1