two substances with crystal structures can be different even if the substances contain the same chemical…

two substances with crystal structures can be different even if the substances contain the same chemical elements in the same ratio. these substances have the same composition, but they are different because their atoms are arranged in different ways. select the two models that represent substances with the same chemical formula but different arrangements of atoms. c si diamond graphite silicon
Answer
Explanation:
Step1: Identify substances with same - element composition
Diamond and graphite are both made of carbon atoms only. Silicon is made of silicon atoms.
Step2: Recall allotropes concept
Allotropes are different structural forms of the same element. Diamond and graphite are allotropes of carbon, having the same chemical formula (C) but different atomic arrangements.
Answer:
Diamond, Graphite