Intro to Chemistry

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Across
  1. 5. Chemical capable of restoring pH values to their normal value
  2. 6. Electrons found in the outer energy level of an atom
  3. 7. When a solid changes directly into a gas
  4. 10. When a gas turns directly into a solid
  5. 12. A pure substance in which two or more different elements are chemically combined
  6. 13. Mixture in which substances are evenly mixed throughout
  7. 14. When a gas turns into a liquid
  8. 17. Molecules in which the electrons are not shared equally resulting in opposite charges on each end of the molecule
  9. 18. Has a definite shape and volume
  10. 19. Chemical with a pH of 7
  11. 20. Change in which the chemical composition stays the same
  12. 22. Chemical capable of speeding up a reaction without being changed by the reaction
  13. 23. Chemical that releases hydrogen ions, H+, when dissolved in water, tastes sour, and has a pH below 7
  14. 25. Chemical that removes hydrogen ions, H+, from water, taste bitter, and have a pH above 7
Down
  1. 1. Change in which the chemical composition changes and a new substance is produced
  2. 2. Substances that react during a chemical reaction
  3. 3. Mixtures in which the separate parts can be easily distinguished
  4. 4. Substances that are produced during a chemical reaction
  5. 8. Has a definite volume but takes the shape of its container
  6. 9. Weak chemical bond formed when a hydrogen atom bonds with an oxygen or nitrogen atoms on another polar molecule
  7. 11. Specific regions in which electrons orbit the nucleus of an atom
  8. 15. A pure substance in which all the atoms are the same
  9. 16. Chemical bond formed when metals and non-metals exchange electrons
  10. 21. Chemical bond formed when two non-metals share electrons
  11. 24. Takes both its shape and volume from its container