Science

123456
Across
  1. 1. - On the right side of a chemical reaction
  2. 3. - Tiny number behind an element
  3. 5. - An arrow that goes in the middle of a reactant's sides
  4. 6. - A large number used to balance equations
Down
  1. 2. -Enter a chemical reaction on the left side
  2. 4. - Reaction that involves the exchange of positive ions