Across
- 2. Describes a chemical equation with equal atoms on both sides.
- 4. A substance that causes or speeds up a reaction (e.g., oxidizing ____).
- 6. Matter with uniform properties; can be an element or compound.
- 8. Chemical process involving the loss of electrons.
- 9. Vertical column in the periodic table with similar properties.
- 11. Negatively charged subatomic particles involved in bonding.
Down
- 1. Starting material in a chemical reaction.
- 3. Pure substances made of one type of atom (e.g., gold, oxygen).
- 5. Two or more atoms bonded together (e.g., H₂O).
- 7. Property of an ion or particle (positive or negative).
- 10. Substance formed in a chemical reaction.