Question

Balance the equation:
$Ca + {N_2} \to C{a_3}{N_2}$

Answer 1

Hint: Despite the fact that chemical compounds are separated and new mixtures are framed during a compound response, molecules in the reactants don't vanish, nor do new iotas seem to shape the products. In substance responses, molecules are rarely made or annihilated. The very molecules that were available in the reactants are available in the products—they are only rearranged into various game plans. In a total compound condition, the different sides of the condition should be available on the reactant and the item sides of the condition.

Complete answer:
Steps in Balancing a Chemical Equation:
Distinguish the most intricate substance.
Change the coefficients.
Balance the polyatomic particles as a unit.
Balance the leftover atoms.
The balanced chemical equation is,
$Ca + {N_2} \to C{a_3}{N_2}$

Note:
There are two kinds of numbers that show up in compound conditions. There are subscripts, which are important for the compound recipes of the reactants and products; and there are coefficients that are set before the equations to show the number of atoms of that substance is utilized or produced.
$Cu\left( s \right) + 2AgN{O_3}\left( {aq} \right)\xrightarrow{{}}Cu{\left( {N{O_3}} \right)_2}\left( {aq} \right) + 2Ag\left( s \right)$
The subscripts are essential for the recipes and once the equations for the reactants and products are resolved, the subscripts may not be changed. The coefficients demonstrate the quantity of every substance associated with the response and might be changed to adjust the condition. The condition above demonstrates that one mole of strong copper is responding with two moles of watery silver nitrate to create one mole of fluid copper (II) nitrate and two particles of strong silver.