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
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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