If samples of silver and lead each had volumes equal to 1cm3 which sample would have the greater mass and what would the difference in the masses be

Density of Silver = 10.5 g / cm^3

Density of Lead = 11.34 g / cm^3

So the masses of each given a volume of 1 cm^3 is:

mass of Silver = 10.5 grams

mass of Lead = 11.34 grams

So we see that Lead has greater mass for similar volume.

The difference is:

11.34 – 10.5 = 0.84 grams

substituting a hydrogen atom with a halogen in a hydrocarbon:

- the single bond remains single. a is wrong.

- the bond with hydrogen is as strong as with a halogen. c is wrong

- a hydrocarbon is saturated if there is no double bond. we do not know that so d is wrong.

- carbon will always have four valence electrons. e is wrong.

by elimination, the correct answer is b. the boiling point of the new compound increases.