Question

one molecule of calcium oxide, cao, and one molecule of carbon dioxide, co₂, combine in a chemical reaction to form one substance. given that matter is neither created nor destroyed, which chemical formula identifies the product of this reaction? (1 point) caco₂ caco₃ ca₂co₃ ca₂o₃

Explanation:

Step1: Write the reactants

The reactants are CaO and CO₂.

Step2: Combine elements

Calcium (Ca), carbon (C), and oxygen (O) combine. Calcium has a +2 charge, carbonate (CO₃²⁻) has a - 2 charge. They combine in a 1:1 ratio.

Step3: Determine product formula

The product is calcium carbonate with formula CaCO₃.

Answer:

CaCO₃