Law of Conservation of Mass

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Across
  1. 3. If the reactants add up to five grams, the products must add up to __ grams.
  2. 5. The ___of Conservation of Mass states that all matter is conserved in a reaction.
  3. 8. the things on the right side of the chemical equation
  4. 10. Water breaking down into hydrogen and oxygen is a __ change.
  5. 12. The Law of ___ of Mass states that all atoms in must equal all atoms out.
  6. 13. the things on the left side of the chemical equation
  7. 14. Mass is usually measured in __ or kilograms.
Down
  1. 1. number in front of a chemical formula, like the 2 in 2NaCl
  2. 2. If an equation is ___, the number of atoms on each side is unequal.
  3. 4. the measure of how many atoms are in something
  4. 6. In __ systems, gas could escape.
  5. 7. A __ equation has the same number of atoms on each side.
  6. 8. Water boiling is a ___ change, because it is still H2O.
  7. 9. In __ systems, no atoms can escape from the reaction.
  8. 11. In chemical reactions, ___ break and new ones form between electrons.