A) By looking at the picture, what do these two models have in common?

B) In chemistry, isomers are molecules with the same chemical formula and often with the same kinds of bonds between atoms, but in which the atoms are arranged differently. Many isomers share similar if not identical properties in most chemical contexts.

Which of the following are examples isomers, molecules with the same chemical formula but different arrangement of atoms?

C) What is the subscript in this molecule below

Br₃₀N

D) What is the correct chemical formula for this compound below?

E) What is the correct chemical formula for this compound below?

3

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