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Select the Examples in Which the Formula for the Ionic

Question 57

Multiple Choice

Select the examples in which the formula for the ionic compound is not written correctly or cannot exist as written. I. (NH4) 2As
II. CuO
III. Mg(C2H3O) 2
IV. Na3(HCO3) 2


A) I only
B) II and III
C) III and IV
D) I and IV
E) I, II and IV

Correct Answer:

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