* Ionic Bonds: Calcium (Ca) is a metal, and oxygen (O) and hydrogen (H) are nonmetals. Metals tend to lose electrons, while nonmetals tend to gain electrons. This results in an electrostatic attraction between the positively charged calcium ion (Ca²⁺) and the negatively charged hydroxide ions (OH⁻). This is the ionic bond that holds the calcium and hydroxide ions together.
* Covalent Bonds: Within each hydroxide ion (OH⁻), the oxygen and hydrogen atoms share electrons. This sharing of electrons forms a covalent bond.
In summary:
* Ionic bonds exist between the calcium ion (Ca²⁺) and the hydroxide ions (OH⁻).
* Covalent bonds exist within each hydroxide ion (OH⁻), holding the oxygen and hydrogen atoms together.
