Across
- 3. matter with the variable composition. made from two or more substances
- 5. is a substance that is currently a gas, but normally is a liquid or solid at room temperature.
- 6. a measure of the amount of matter
- 9. a measure of the amount of space that is occupied
- 12. beginning substances that start a reaction.
- 13. a process that absorbs energy from the surroundings
- 15. anything with mass that occupies space
Down
- 1. substances that are formed during the reaction.
- 2. a chemical substance whose atoms all have the same number of protons.
- 4. process that releases energy into the surroundings
- 7. firm and stable in shape; not liquid or fluid.
- 8. matter with constant composition all partials have the same properties
- 10. the capacity to do work or transfer heat
- 11. the smallest unit of an element that maintains the properties of that element.
- 14. a substance that is made from atoms of two or more elements that are chemically bonded such as water