Which Pairs of Substances Are Isomers?

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SUMMARY

The discussion focuses on identifying pairs of substances that are isomers, specifically analyzing options such as 35Cl and 37Cl, hexane and benzene, butane and methylpropane, and diamond and graphite. The correct answer is that butane and methylpropane are structural isomers, sharing the same molecular formula but differing in structure. Additionally, 35Cl and 37Cl are isotopes, while diamond and graphite are allotropes of carbon. The conversation clarifies the definitions of isomers, isotopes, and allotropes.

PREREQUISITES
  • Understanding of isomers and their classifications
  • Knowledge of isotopes and their properties
  • Familiarity with allotropes and their significance in chemistry
  • Basic grasp of molecular structures and formulas
NEXT STEPS
  • Study the differences between structural isomers and stereoisomers
  • Research the properties and applications of isotopes in various fields
  • Explore the significance of allotropes in material science
  • Learn about molecular geometry and its impact on chemical properties
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Chemistry students, educators, and professionals interested in organic chemistry, structural analysis, and the properties of elements.

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Homework Statement


Which of the following pairs of substances are isomers?

Homework Equations



a. 35Cl and 37Cl
b. Hexane and benzene
c. Butane and methylpropane
d. Diamond and graphite

The Attempt at a Solution


Which one is right ?
 
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What are your thoughts?

Start with the definition.
 
I think it is C?? They look like sharing a different arrangement but same formula ??
 
OK

Extra question: and how would you call forms listed in point A? D?
 
Ah...A is constitutional isomers?? And D is three-dimensional lattice??
 
Nope, take a step back and forget about isomers.

What do you call two different atoms with same number of protons but different numbers of neutrons?

When an element can exist is different forms, how do you call them?
 
I this they are isotopes . Do you mean Allot-ropes for that element?
 
Yes.
 
Thank you so much ;)
 

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