Chapter 2 crossword 1

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Across
  1. 2. a stable subatomic particle occurring in all atomic nuclei, with a positive electric charge equal in magnitude to that of an electron, but of opposite sign
  2. 4. the strength and vitality required for sustained physical or mental activity.
  3. 5. having the properties of an alkali, or containing alkali; having a pH greater than 7.
  4. 6. the lowest part or edge of something, especially the part on which it rests or is supported.
  5. 7. physical substance in general, as distinct from mind and spirit; (in physics) that which occupies space and possesses rest mass, especially as distinct from energy.
  6. 8. is any chemical reaction that involves the gaining of electrons. Specifically, it refers to the side that accepts electrons. When iron reacts with oxygen it forms a chemical called rust. In that example, the iron is oxidized and the oxygen is reduced.
  7. 10. is a reaction that loses energy during the process of the reaction.
  8. 14. a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
  9. 15. physical restraints used to hold someone or something prisoner, especially ropes or chains.
  10. 16. a substance that takes part in and undergoes change during a reaction.
  11. 17. able to dissolve other substances.
  12. 20. the ion H3O+, consisting of a protonated water molecule and present in all aqueous acids
Down
  1. 1. the minor component in a solution, dissolved in the solvent.
  2. 3. reactions include all chemical reactions in which atoms have their oxidation state changed; in general, redox reactions involve the transfer of electrons between species.
  3. 4. a stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids.
  4. 9. bonding between a non-metal and a metal, that occurs when charged atoms (ions) attract after one loses one or more of its electrons, and gives it to the other molecule, for example sodium and chlorine.
  5. 10. the fixed amount of energy that a system described by quantum mechanics, such as a molecule, atom, electron, or nucleus, can have.
  6. 11. a subatomic particle of about the same mass as a proton but without an electric charge, present in all atomic nuclei except those of ordinary hydrogen.
  7. 12. the action or power of focusing one's attention or mental effort.
  8. 13. the basic unit of a chemical element.
  9. 18. a thing that is composed of two or more separate elements; a mixture
  10. 19. scale is a measure of how acidic or basic a substance is