A certain ionic salt is insoluble in distilled water, but dissolves upon the addition of aqueous hydrochloric acid. A flame test of the resulting solution produces a green flame. Which of the following is most likely the identity of the salt?
W) Barium hydroxide
X) Copper (II) carbonate
Y) Calcium fluoride
Z) Magnesium chloride
✔️Answer:X) Copper (II) carbonate
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