Why is copper sulfate a compound?
A. It is composed of 2 elements united chemically.
B. It cannot be decomposed further into 2 elements.
C. It can be separated by physical means
D. The elements can still be identified.
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Answer:coli.; Copper(II) sulfate is the chemical compound with the formula CuSO4. This salt exists as a series of compounds that differ in their degree of hydration. The anhydrous form is a pale green or gray-white powder, whereas the pentahydrate (CuSO4·5H2O), the most commonly encountered salt, is bright blue.
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