Question 911 point) Cu (l) has a charge = +1. If you were to say the name "Cu (1)" allowed you would say "copper one" (Cu (1) = copper 1).
Sometimes copper has a charge = +2. This is called Cu (II). Write down how you would say the name of this

i think it is d. e because the next one is igneous.

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.