How many total atoms of oxygen are present in Ca(HCO₃)₂?

How many total atoms of oxygen are present in Ca(HCO₃)₂?

• A. 4
• B. 5
• C. 6
• D. 8

Answer: (C)

To determine the total number of oxygen atoms present in the compound calcium bicarbonate, represented by the formula Ca(HCO₃)₂, it's important to break down the components of the compound. The formula indicates that there is one calcium (Ca) atom and two bicarbonate (HCO₃) groups. Each bicarbonate group contains one carbon (C), one hydrogen (H), and three oxygen (O) atoms. Since there are two bicarbonate groups in the formula, we can calculate the total number of oxygen atoms as follows: - Each HCO₃ contributes 3 oxygen atoms. - Therefore, for two HCO₃ groups, the calculation would be: 3 oxygen atoms × 2 (the number of HCO₃ groups) = 6 oxygen atoms. In total, there are 6 oxygen atoms present in the compound Ca(HCO₃)₂. This corresponds with the correct answer.

To determine the total number of oxygen atoms present in the compound calcium bicarbonate, represented by the formula Ca(HCO₃)₂, it's important to break down the components of the compound.

The formula indicates that there is one calcium (Ca) atom and two bicarbonate (HCO₃) groups. Each bicarbonate group contains one carbon (C), one hydrogen (H), and three oxygen (O) atoms.

Since there are two bicarbonate groups in the formula, we can calculate the total number of oxygen atoms as follows:

• Each HCO₃ contributes 3 oxygen atoms.

• Therefore, for two HCO₃ groups, the calculation would be:

3 oxygen atoms × 2 (the number of HCO₃ groups) = 6 oxygen atoms.

In total, there are 6 oxygen atoms present in the compound Ca(HCO₃)₂. This corresponds with the correct answer.