Hurry hurry hurry plz plz Jonathan’s claim: light is always the same, even when it is emitted by a different light sources(light the sun and a light bulb)

Question 1: do you agree or disagree with his claim?

Question 2: what evidence from your observations within our lesson prove your point?

personal, she chose to do it.

the answer is barium and copper bromide

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.