chem 4.1

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Across
  1. 3. The law of ____ of mass states that in any chemical reaction, the mass of the products is always equal to the mass of the reactants.
  2. 4. A substance that undergoes a chemical reaction is called?
  3. 7. A substance that is formed in a chemical reaction is called?
Down
  1. 1. This lists the chemical formula of each reactant on the left, separated by a + sign if more than one reactant is involved, followed by an arrow.
  2. 2. The numbers that are placed in fornt of chemical formulas are called?
  3. 5. A balanced __ equation reflects the law of conservations of mass.
  4. 6. What identifies the reactants and products of a chemical reaction?