How many moles of Lead would there be in 51.75 grams of Lead?

h let me think

in the analysis of systems that involve fluid flow, we frequently encounter the combination of properties u and pv.

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.

you need to have a picture of the atom that way we can answer it