Question

Which statement correctly compares barium nitrate (Ba(NO3)2) and scandium nitrate (Sc(NO3)3)?

They contain the same number of NO3 groups.
They contain the same number of oxygen atoms.
They contain the same total number of atoms.
They contain the same number of elements.

Answer 1

Each chemical element is represented by a capital letter.
On both cases, there are 3 elements.
Answer, D.

Answer 2

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