Chemistry Vocabulary 2

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Across
  1. 4. - pure substances that are composed of two or more types of elements that are chemically combined
  2. 6. Simplest form of a pure substance that cannot be broken into anything else by physical or chemical means.
  3. 8. - a negatively charged subatomic particle found outside of the nucleus of the atom
  4. 11. - a positive subatomic particle found in the nucleus of an atom.
  5. 12. - The amount of matter does not change during a chemical reaction, only that the atoms are rearranged to form new substances. This is evidenced in a balanced chemical equation.
Down
  1. 1. - is uniform throughout, the substances are evenly mixed and cannot be visibly distinguished
  2. 2. - is not uniform throughout, the component substances can be visibly distinguished
  3. 3. - physical combinations of two or more different substances that retain their own individual properties and are combined physically (mixed together)
  4. 5. - substances broken apart or combined in a chemical reaction and that they are located on the left side of the arrow in a chemical equation
  5. 7. - a subatomic particle with no charge (neutral) found in the nucleus of the atom.
  6. 9. - new substances formed in a chemical reaction and that they are located on the right side of the arrow in a chemical equation.
  7. 10. - Smallest particle in a chemical element or compound that has the chemical properties of that element.