level: Ionic equations
Questions and Answers List
level questions: Ionic equations
| Question | Answer |
|---|---|
| What is the overall charge of an ionic compound? | (0 the charges always cancel out) |
| State the formula for sodium oxide. sodium = Na+ Oxygen = O2- | Na2O You need 2 sodium to cancel out the 2- from oxygen |
| State the formula for calcium hydroxide. Calcium = Ca2+ Hydroxide = OH- | Ca(OH)2 2 hydroxides are required to cancel out the 2+ charge |