Across
- 2. releases heat energy.
- 5. absorbs heat energy.
- 6. the amount of substance presents in a certain volume.
- 10. substance that speeds up a chemical reaction.
- 11. tells how fast a reaction occurs after it has started.
Down
- 1. the energy that starts a chemical reaction.
- 3. the substance that slows down a chemical reaction.
- 4. part of the equation on the right side.
- 6. shows the reactants, products, physical state, and the extra stuff of each substance.
- 7. is the process that makes a chemical change.
- 8. part of the equation on the left side.
- 9. large protein molecules that speed up a reaction needed for the cells to work correctly.