. In calcium carbonate, for every one atom of carbon there are how many atoms of oxygen?

In calcium carbonate (CaCO₃), the chemical formula indicates the composition of the compound.

1. Breakdown the Problem

   • Identify the elements in the compound: Calcium (Ca), Carbon (C), and Oxygen (O).
   • From the formula CaCO₃, we observe the ratios of the elements present.

2. Relevant Concepts

   • The formula indicates how many atoms of each element are present in one formula unit of calcium carbonate.

3. Analysis and Detail

   • The chemical formula CaCO₃ can be broken down as follows:
     • 1 atom of Calcium (Ca)
     • 1 atom of Carbon (C)
     • 3 atoms of Oxygen (O)

4. Verify and Summarize

   • In the formula, for each one atom of Carbon, there are 3 atoms of Oxygen.
   • This matches the coefficients in the formula and verifies the composition.

Final Answer

For every one atom of carbon in calcium carbonate, there are 3 atoms of oxygen.