Chemistry review

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Across
  1. 4. Are the chemicals involved in the reaction
  2. 6. is a pure substance consisting only of atoms that all have the same numbers
  3. 7. Elements are arranged by order of their
  4. 10. Acids have a pH of less than
  5. 11. Bases have a pH great her than
  6. 12. Non metals have a what appearance
  7. 13. Chemicals produced by a reaction are
  8. 16. Unstable atoms of an element like uranium are called
  9. 17. a substance made of two or more elements is a
  10. 18. Acids can be found
  11. 19. when electrons are shared between two atoms we call it a what bond
Down
  1. 1. bases are used to
  2. 2. the force that pulls particles in the atom towards each other
  3. 3. bases turn red litmus paper
  4. 5. another name for metalloids are
  5. 8. bases taste
  6. 9. acids turn blue litmus paper
  7. 14. metalloids can be malleable ductile and
  8. 15. Acids taste
  9. 16. charged particle forms when an atom gain or loses electrons