What class of lever is shown below? Question 3 options:

First Class Lever

Second Class Lever

Third Class Lever

Forth Class Lever

here's the link to your question!

explanation:

if you're asking what comes out, it's steam.

they are all solids.

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.