Chemistry Unit Review

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Across
  1. 3. The smallest part of an element that can exist and still retain the characteristics of that element.
  2. 4. Describe how one substance will react with another. In a chemical reaction the products are very different from the reactants. The physical properties of the products may be entirely different from the physical properties of the reactants.
  3. 6. A pure substance containing two or more elements united chemically. The molecules of the compound are all the same.
  4. 8. To change from a liquid to a gaseous state. The boiling point of water is 100¼C.
  5. 9. The force of attraction between the surface of unlike bodies such as a solid and a liquid.
  6. 10. An element or compound that enters into a chemical reaction.
Down
  1. 1. Those properties that can be associated with a physical change in a substance.
  2. 2. A pure substance in which all the atoms are the same. Hydrogen is an element for example
  3. 4. The force of attraction between the particles (molecules) of a substance.
  4. 5. A change in a substance where no new substances are formed though the substance, itself, takes on different characteristics;
  5. 7. A substance obtained from one or more other substances as a result of a chemical reaction.