Test - Chemical Reaction

Question 1

5. Which two reactions could be considered opposites?
   a) a synthesis reaction and a decomposition reaction

b) a single replacement reaction and a double replacement reaction
c) a precipitate reaction and a synthesis reaction

Answer 1

A

notes

Question 2

8. A teacher wants to demonstrate a chemical reaction for her students. Which of the following do not indicate that a chemical reaction has occurred
   a) production of gas

b) melting a solid piece of aluminum
c) a decomposition reaction

Answer 2

C Notes