Answered

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Which of the following is an example of a compounds?
Select one:
a.Cu
b.CaCl2
c.Na
d.Nd

Sagot :

TutorAnneidn

Answer:b.CaCl2

Explanation:

A compound is  a substance resulting when two or more elements  are are chemically bonded together either ionically or covalently in a fixed ratio.

From the given options we can see that the only compound there  is CaCl2 which is an ionic compound in the fixed  ratio of one calcium ion to two chloride ions.

Other options , Cu,Na and Nd are merely pure substance---Elements

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