Across
- 2. substances that are formed during a reaction
- 4. energy energy possessed by an object's position
- 5. the amount of matter in the sample
- 6. beginning substances that start a reaction
- 9. not easily reversed
- 11. a pure substance made of only one kind of atom
- 13. substance matter that has a definite composition
- 14. a measure of the amount of matter
- 15. the capacity to do work or transfer heat
Down
- 1. process that absorbs energy
- 2. properties a property that can be observed or measured
- 3. the type of matter, not the amount present
- 7. process that releases energy into surroundings
- 8. the smallest unit of an element that maintains the properties of the element
- 10. a three dimensional measure of space
- 12. of conservation of mass mass can't be created or destroyed. it remains the same during a chemical reaction