Unit 02

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Across
  1. 2. Formulas written on the right side of the yield are the new substances formed in a chemical reaction.
  2. 6. A way to show the number and type of atoms in a compound or a molecule with symbols and numbers.
  3. 7. A change in which a substance (or substances) is changed into one or more new substances with different properties than the original substances
  4. 8. written on the left side of the yield are the starting substances in a chemical reaction.
  5. 10. states that mass cannot be created or destroyed.
Down
  1. 1. Two or more atoms joined together. The atoms can be the same element or different elements.
  2. 3. A number in front of any chemical formula in a chemical equation showing the number of molecules involved in the reaction.
  3. 4. A small number that is written below the normal line of letters to show the number of atoms of each element is present in a substance.
  4. 5. Describes what happens in a chemical reaction. The equation identifies the starting materials (reactants) and resulting substances (product) in formula form.
  5. 9. A substance composed of two or more DIFFERENT element.