please help!!!!!!!!!!!!
1. **In the procedure shown below, a calcium chloride solution is mixed with a sodium sulfate solution to create the products shown. Which of the following is illustrated by this activity?
a. The law of conservation of mass
b. The theory of thermal equilibrium
C. The law of conservation of energy
d. Newton's 2nd Law​

please help1 In the procedure shown below a calcium chloride solution is mixed with a sodium sulfate solution to create the products shown Which of the followin class=