Science 8.5D & 8.5E

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Across
  1. 6. – elements and compounds combine to form new substances
  2. 8. – substance that combines with another substance in a chemical reaction
  3. 10. - number before a chemical formula showing how many atoms or molecules are involved in a reaction
  4. 11. – substance that forms when two or more elements join chemically
Down
  1. 1. – number to the bottom right of a chemical symbol identifying numbers of element atoms in a molecule
  2. 2. – two or more atoms held together by chemical bonds; smallest unit of a compound that has all the compound properties
  3. 3. - the letter or letters standing for a chemical element
  4. 4. –chemical symbols and numbers showing the kinds and numbers of atoms in a molecule
  5. 5. - homogeneous mixture composed of two or more substances. In such a mixture, a solute is a substance dissolved in another substance, known as a solvent.
  6. 7. - the basic unit of a chemical element
  7. 9. – a substance that cannot be broken down into simpler substances by ordinary chemical means