Question

The physical and chemical properties of a molecule depend on its structure. Here are two ball-and-stick models for two compounds that have the same molecular formula but different structures and different chemical properties.

Answer 1

Isomerism:

"The different compounds having the same chemical composition or molecular structure. But, there physical properties vary in many ways,i.e boiling point, melting points etc. As there atoms or molecules are arranged in different patterns."

The two compounds are then called as the isomers, as they share the same chemical properties between them but they have different physical properties.

For example:

We have ethanol and Di-methyl ether, as both the compounds acts as the isomers for each other due to difference in the arrangement of the molecules or atoms.

Step-by-step explanation:

Ethanol and Di-methyl ether:

1. Ethanol has different arrangement or pattern of atoms in its structure. As the bonding on the intra-molecular level inside the ethanol structure is the covalent bonding( As it involves sharing of a pair of electrons between the different atoms). Due, to the covalent bonding between the two or more atoms there is a difference in polarity of the compound's structure. As this polarity pattern of the compound results in its polar nature.
2. For the Di-methyl ether the hydrogen bonding is present and it makes the compound more different from the rest of the compounds. As it too has the polar nature, but due to the hydrogen bonding between the atoms or the molecules of the compound.