Question

When Magneisum is treated with a
certain concentration of nitric acid, nitric
oxide and nitrogen dioxide are liberated
in equal moles according to the equation
xMg+ yHNO3 → Mg(NO3)2
+ N2O + H2O
The coefficients x and y are​

Answer 1

If we are balancing an equation, the reactants' mass must be equal to the products' mass.

Here In the product side, there's only 1 atom of Mg in Mg(NO3)2.

Hence the coefficient of Mg in the reactants' side is 1.

In HNO3, there are 2 atoms of H2 in watwr as shown in the product's side. There are also 2 atoms of nitrogen in N2O

Hence it is 2.

The equation would be,

Mg+ 2HNO3 → Mg(NO3)2

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