Across
- 3. pH of less than 7
- 4. scale used to classify solutions
- 5. a solid substance formed when two solutions are chemically combined.
- 6. new substances formed in a chemical reaction and that they are located on the right side of the arrow in a chemical equation.
- 7. do not change the composition of a substance, only the physical properties
- 8. result in the formation of one or more new substances with new chemical and physical properties
- 10. The amount of matter does not change during a chemical reaction, only that the atoms are rearranged to form new substances. This is evidenced in a balanced chemical equation.
- 11. pH of more than 7
Down
- 1. be recognized only when substances react or do not react chemically with one another, that is, when they undergo a change in composition.
- 2. substances broken apart or combined in a chemical reaction and that they are located on the left side of the arrow in a chemical equation
- 4. can be observed and measured without changing the kind of matter being studied.
- 9. substance that increases the rate of a chemical reaction