Question

match the following chemical as either a reactant or a product: mg + o2 → mgo

Explanation:

Step1: Identify reactants and products in a chemical equation

In a chemical equation $A + B
ightarrow C$, $A$ and $B$ are reactants and $C$ is the product. In the equation $Mg + O_2
ightarrow MgO$, the substances on the left - hand side of the arrow are reactants and the substance on the right - hand side is the product.

Step2: Classify Mg

$Mg$ is on the left - hand side of the arrow, so it is a reactant.

Step3: Classify MgO

$MgO$ is on the right - hand side of the arrow, so it is a product.

Step4: Classify O2

$O_2$ is on the left - hand side of the arrow, so it is a reactant.

Answer:

Mg: Reactant
MgO: Product
O2: Reactant