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: Analyze reactant elements

Calcium oxide ($CaO$) has calcium ($Ca$) and oxygen ($O$), carbon - dioxide ($CO_2$) has carbon ($C$) and oxygen ($O$).

Step2: Combine elements

According to the law of conservation of mass, combine the elements from $CaO$ and $CO_2$. We have one $Ca$, one $C$, and three $O$ atoms.

Answer:

$CaCO_3$