which of the following statements supports the correct equation for the previous question?\na oxygen is…

which of the following statements supports the correct equation for the previous question?\na oxygen is represented as a molecule and therefore has a subscript of 2 in the chemical equation.\nb magnesium is represented as a molecule and therefore has a subscript of 2 in the chemical equation.\nc neither oxygen nor magnesium should have subscripts in the equation because they are not represented as molecules.\nd magnesium oxide should have a subscript because it is a compound.

which of the following statements supports the correct equation for the previous question?\na oxygen is represented as a molecule and therefore has a subscript of 2 in the chemical equation.\nb magnesium is represented as a molecule and therefore has a subscript of 2 in the chemical equation.\nc neither oxygen nor magnesium should have subscripts in the equation because they are not represented as molecules.\nd magnesium oxide should have a subscript because it is a compound.

Answer

Answer:

A. Oxygen is represented as a molecule and therefore has a subscript of 2 in the chemical equation.

Explanation:

Step1: Identify reactants and products

The reactants are magnesium (Mg) and oxygen (O₂), products are magnesium oxide (MgO).

Step2: Analyze oxygen

Oxygen in nature exists as a di - atomic molecule O₂, so it has a subscript of 2 in the chemical equation.

Step3: Analyze magnesium

Magnesium is a metal and is represented as an atom (Mg) not a molecule with a subscript in this reaction.

Step4: Analyze magnesium oxide

Magnesium oxide (MgO) is a compound but doesn't have a subscript in the balanced equation 2Mg + O₂ → 2MgO for this reaction context.