Asolid block of exactly 100.0 cm3 has a mass of 153.6 g. determine its density. will the block sink or float on water?

The density of a substance can be calculated by simply taking the ratio of mass and volume. That is:

density = mass / volume

density = 153.6 g / 100 cm^3

density = 1.536 g / cm^3

The density of water is 1 g / cm^3. Since the solid block has higher density than water, therefore it will sink on water.

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.