complete chemical equation balance them : Mg + O_2 __________ - Vidyadip

Question

complete chemical equation balance them : $\text{Mg} + \text{O}_2 \rightarrow $ __________

✓

Answer

$\text{Mg} + \text{O}_2 \rightarrow \text{MgO}$

Element	$\text{LHS}$	$\text{RHS}$
$\text{Mg}$	$1$	$1$
$\text{O}$	$2$	$1$

Multply $\text{MgO}$ on $\text{RHS}$ by $2$ to balance the oxygen atoms.
$\text{Mg} + \text{O}_2 \rightarrow \text{MgO}$

Element	$\text{LHS}$	$\text{RHS}$
$\text{Mg}$	$1$	$2$
$\text{O}$	$2$	$2$

Now, multply Mg on $\text{LHS}$ to balance $\text{Mg}$ atoms.
$2\text{Mg} + \text{O}_2 + 2\text{MgO}$

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