Question

One calcium atom for every oxygen atom. Express your answer as a chemical formula:

(a) Write the chemical formula for calcium oxide.
(b) Determine the ratio of calcium to oxygen atoms.
(c) Identify the elements involved in the compound.
(d) Express the compound in its simplest form.

Answer 1

The chemical formula for calcium oxide is CaO. The ratio of calcium to oxygen atoms is 1:1. The compound consists of the elements calcium and oxygen.

Step-by-step explanation:

Chemical formula for calcium oxide: CaO

(a) Calcium oxide is written as CaO.

(b) The ratio of calcium to oxygen atoms is 1:1. There is one calcium atom for every oxygen atom.

(c) The elements involved in the compound are calcium (Ca) and oxygen (O).

(d) The compound is already expressed in its simplest form.