Across
- 4. the whole number that appears in front of a formula in a chemical equation
- 5. an equation that is represented by using words in a chemical reaction
- 7. a solid that is formed from a chemical reaction in solution and that separates from the solution
- 8. a reaction which combines with oxygen, releasing lots of energy in the form of light and hear
- 10. both the products and reactants of a chemical reaction using formulas or symbols
- 12. two or more substances combine to make one new compound
- 13. a list of elements organized by how they undergo certain chemical reactions
Down
- 1. represents the identities and relative molecular amounts in a chemical reaction.
- 2. where only one element replaces another element in a compound
- 3. when a single compound reacts to form two or more simple substances
- 6. using electric current to decompose a substance
- 9. when two ions from different compounds exchange places in an aqueous solution which forms two new compounds
- 11. represented by two arrow pointing in opposite directions which show the products reforming the original reactants