Aluminum has a density of 2.70 g/mL. Calculate the mass (in grams) of a piece of aluminum having a volume of 290 mL .

783 grams

Explanation:

The density formula is:

Rearrange the formula for , mass. Multiply both sides of the formula by .

The mass can be found by multiplying the density and the volume.

Aluminum has a density of 2.70 grams per milliliter and the volume of this piece is 290 milliliters.

Substitute the values into the formula.

Multiply. When multiplying, the milliliters, or "mL" will cancel each other out.

The mass of the aluminum is 783 grams.

the answer is 303.15 or 303

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.