Across
- 1. law that states that matter is not created or destroyed; it only changes forms or is rearranged
- 3. the number written to the right and slightly below an element to represent the number of atoms of an element present in the formula; no subscript equals 1 atom
- 9. change- the formation of a new substance with new properties
- 11. the arrangement, type, and ratio of atoms in chemical formulas
- 12. substance(s) that result or are produced from a chemical reaction; the yield sign points to the products
- 13. a substance made of two or more different elements
Down
- 2. a change caused by two or more substances interacting (reactants) and resulting in the formation of a new substance(s) (products)
- 4. not expected or unlikely to happen
- 5. arrow in a chemical equation showing the direction of the reaction
- 6. a combination of chemical symbols and numbers to represent a substance
- 7. substances that are combined in a chemical reaction; the yield sign points away from the reactants
- 8. the formation of a solid that results from the mixing of two solutions
- 9. when physical quantity or amount of a substance during reactions does not change
- 10. the production and discharge of something, especially gas or radiation
- 11. equation- representation of a chemical reaction using symbols and numbers