1. Chemical combinations have formule, common names and chemical names, e.g. carbon dioxide. Water is H2O – what is its chemical name? No, not water.
2. What’s the chemical formula for dry ice?
3. Macadamia nuts are toxic to which animal in particular?
4. Which gas is produced by a ripening apple?
5. Which gas causes the car airbag to expand?
6. Two elements which stay liquid at room temperature?
7. What’s the formula for sulphuric acid?