Unit 9 💥 Reactions ☢️

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Across
  1. 3. - radioactive decay by emission of an alpha particle - 4/2 He
  2. 5. - radioactive decay by emission of a gamma ray - 0/0 y
  3. 6. - a chemical reaction in which two or more substances react to yield a single product
  4. 7. - increases the hydroxide ion concentration in a solution (ends with OH)
  5. 11. - a substance or molecule that participates in a chemical reaction; on the left side
  6. 12. - a solid that forms and settles out of a liquid mixture
  7. 14. - a nuclear reaction in which a heavy nucleus splits with the release of energy
  8. 15. - a substance or molecule that is formed during a chemical reaction; on the right side
  9. 17. - a chemical change in which a single compound is broken down into two or more simpler products
  10. 18. - acid and base combine to form salt and water
Down
  1. 1. - radioactive decay in which an electron is emitted - 0/-1 e
  2. 2. - a chemical reaction that involves a substance rapidly combining with oxygen to form one or more oxides
  3. 4. - law of __________ of mass states that mass cannot be created or destroyed
  4. 8. - increases the hydrogen ion concentration of a solution (begins with H)
  5. 9. - the amount of time it takes for one half of unstable nuclei to become stable
  6. 10. - _______-displacement - one element takes the place of another element in a compound
  7. 13. - a nuclear reaction in which 2 nuclei fuse to form a heavier nucleus with the release of energy
  8. 16. - _______-displacement - ions of two compounds exchange places in an aqueous solution to form two new compounds