An experiment test of the Law of conservation of Mass is illustrated in the diagram. In practice, the flask is weighed before and after reaction between solutions X and Y. Which of the following pairs of solutions will be unsuitable for the experiments
A.
X = hydrochloric acid; Y = silver nitrate
B.
X = barium chloride; Y = dilute sulphuric acid
C.
X = hydrochloric acid; Y = sodium hydroxide
D.
X = hydrochloric acid; Y = lead nitrate
E.
X = hydrochloric acid; Y = sodium carbonate
Correct answer is E
No explanation has been provided for this answer.