Question

write the balance equation
Aluminium and magnesium reacts with air​

Answer 1

$when \: mg \: burn \: with \: oxygen \: gas \: it \: undergoes \: the \: process \: of \: oxidation \: and \: magnesium \: oxide \: is \: formed \\ \\ balanced \: equation \: -$

2Mg(s)+O 2 (g)→2MgO(s)

Answer 2

Explanation:

Balancing chemical equations

If the names of substances are simply replaced by their symbols and formulae, most chemical equations are not correct. This is because the numbers of atoms of each element in the reactants may differ from those in the products.

Balanced equation is: 2Mg(s)+O2(g)→2MgO(s)

I hope it will help you