What is the molecular formula for calcium hydroxide?

The molecular formula for calcium hydroxide is represented as Ca(OH)2. This indicates that one calcium ion (Ca^2+) combines with two hydroxide ions (OH^-).

Understanding this structure is key. Calcium has a charge of +2, meaning it balances out the charges from two hydroxide ions, each carrying a charge of -1. The result is a neutral compound. Therefore, the formula not only correctly depicts the elements involved (calcium and hydroxide) but also accurately reflects the stoichiometry of the compound, showing that two hydroxide ions are needed to pair with one calcium ion to achieve electrical neutrality.

In terms of context, calcium hydroxide is commonly used in various applications, such as in the construction industry as a component of lime, and in chemistry for its role in acid-base reactions. Knowing its proper molecular formula allows for accurate discussions and calculations in both educational and practical settings.