complete the statement below.\nthe two selected substances share the same _, but they are different…

complete the statement below.\nthe two selected substances share the same _, but they are different substances because they have different _.\narrangement of atoms...compositions\ncomposition...arrangements of atoms
Answer
Brief Explanations:
Substances with the same composition (same types and ratios of atoms) but different arrangements of atoms are different substances. For example, beta - silicon carbide and alpha - silicon carbide have the same elements (silicon and carbon) in the same ratio, but their atom arrangements vary.
Answer:
composition...arrangements of atoms