Final answer:
Calcium hydroxide (Ca(OH)₂) has both ionic and covalent bonds. The bond between calcium and hydroxide is ionic, while the bond inside the hydroxide ion is covalent.
Step-by-step explanation:
Calcium hydroxide (Ca(OH)₂) can have both ionic and covalent bonds.
The bond between calcium and hydroxide is ionic, as calcium donates its valence electrons to oxygen, resulting in the formation of Ca2+ and OH- ions.
However, within the hydroxide ion (OH-), the bond between oxygen and hydrogen is covalent, as they share electrons to form the OH- ion.
So, while the overall compound is ionic, there are covalent bonds within the hydroxide ion.