De exemplos de substâncias apolares e polares

The answers for the following question is answered below.

Explanation:

Polar substance:

A polar substance are the compounds that have slight charges(slight positive and slight negative) within the compound.The slight charges are due t the electronegativity difference of 0.3 to 1.4.

They do not share equally electrons in the covalent bond.

Electronegativity:

The attraction of an element that has for electrons.

Greater the electronegativity more the electrons are pulled.

Examples of polar substances are:

Note:

Ionic compounds such as sodium chloride(NaCl) are polar.

Non-Polar substance:

The compounds that do not have slight negative and positive charges within the compound.

The electronegativity differences of non polar compounds are between 0 and 0.2.

All the hydrocarbons are non polar sub-groups are non polar compounds.

They do share equally electrons in the covalent bond.

Examples of non polar substances:

the answer is 0.42 is that is an option. this question provides no info