Unit 2: Investigating Chemical Reactions

1234567891011
Across
  1. 2. The number in the front of a chemical formula
  2. 6. Representation of elements and their quantity of atoms within a chemical substance
  3. 7. The substances used in a chemical reaction
  4. 8. The substances formed after a chemical reaction has occurred
  5. 10. The smallest unit of matter of a specific element
  6. 11. Substances composed of two or more different elements
Down
  1. 1. When a new substance is formed from the combination of two or more other substances
  2. 3. When a substance undergoes a change in shape, phase, or structure without changing its chemical composition
  3. 4. Substance composed of at least two atoms either the same element or different elements
  4. 5. Matter can neither be created, nor destroyed in a chemical reaction
  5. 9. The small number to the right of an element symbol in a chemical formula