Across
- 1. things perceived through the senses
- 5. to make different
- 6. when the number of atoms in a chemical equation is the same
- 9. rearrangement of the molecular or ionic structure
- 11. body of matter with no definite shape
- 12. physical substance
Down
- 2. interactions of substances in chemistry
- 3. force of attraction holding atoms together
- 4. chemical reaction using symbols of the elements
- 5. physical quantity remains constant
- 7. elements before they bond with another
- 8. the basic unit of a chemical element
- 10. outcome of reactants after they bond