Match the boiling points (°ree;C, 1 atm) with the appropriate alkanes. Be sure to answer all parts. A) 2,2−dimethylbutane B) heptane C) hexane D) 2−methylpentane

Explanation:

A) 2,2−dimethylbutane - 79°C

B) heptane - 126°C

C) hexane - 98°C

D) 2−methylpentane - 90°C

As the number of C-C chain increases in the homologous series(alkane), the van der waals dispersion forces increases because the atoms increase i.e Heptane (C7) has a stronger van der waal force than Hexane (C6).

As branching increases (more branches) volatility also increases and temperature is a factor of volatility. As the volatility increases, the boiling point decreases.

2,2−dimethylbutane has more branches (2) than 2−methylpentane, so 2,2−dimethylbutane is more volatile than 2−methylpentane so hence 2,2−dimethylbutane is lesser.

passed in september 1935, these laws are known as nuremberg laws.   they forbid jews from marrying but not directly forced them to divorce aryans. what is most noticeable is the fact that the jews were defranchised, meaning by this that they were not expected to have any civil rights, including the right to vote. the right answer is deprived of the right to vote.

we need the questions , i may then you.