5 Written Questions

1. a substance formed during a chemical reaction
2. a chemical reaction that occurs when a substance reacts with oxygen, releasing energy in the form of heat and light
3. a chemical reaction that occurs when a single compound breaks down into two or more elements
4. the starting substance in a chemical reaction
5. a solution in which the solvent is water

5 Multiple Choice Questions

1. 6.02 x 10^23, which represents the number of particles in a mole
   1. aqueous solution
   2. molar mass
   3. product
   4. Avagadro's number
2. the number written in front of a reactant or product in a chemical equation
   1. precipitate
   2. mole
   3. coefficient
   4. reactant
3. the SI unit used to measure the amount of a substance
   1. molar mass
   2. product
   3. mole
   4. reactant
4. a chemical reaction in which two or more substances react to yield a single product
   1. synthesis reaction
   2. aqueous solution
   3. chemical reaction
   4. combustion reaction
5. a statement using chemical formulas to describe the identities and relative amounts of the reactants and products involved in the chemical reaction
   1. synthesis reaction
   2. coefficient
   3. chemical equation
   4. chemical reaction

5 True/False Questions

1. molar mass → the SI unit used to measure the amount of a substance

   True        False

2. precipitate → a solid produced during a chemical reaction in a solution

   True        False

3. double replacement reaction → a chemical reaction that occurs when the atoms of one element replace the atoms of another element in a compound

   True        False

4. chemical reaction → the process by which the atoms of one or more substances are rearranged to form different substances

   True        False

5. single replacement reaction → a chemical reaction that occurs when the atoms of one element replace the atoms of another element in a compound

   True        False