Cambridge Secondary (7-9). Stage 9. MCE Science. Workbook - Unit 8: Rate of Reaction - Question 4

In this conservation-of-mass experiment, 100 ml of calcium chloride solution is placed in a conical flask and 20 ml of sodium sulfate solution in a test tube inside it. The flask is stoppered. The entire sealed set-up is weighed, then the test tube is tipped to mix the solutions without opening the flask. The entire set-up is weighed again after reaction. Wear safety goggles and gloves.

Calcium chloride and sodium sulfate react to form calcium sulfate and another salt. Write the word equation for the reaction.