What type of ion does the substance give off if turns the paper blue?

Acidic

Explanation:

Bases turns red litmus paper blue.

Explanation:

Arrhenius theory states a Base is a substance which produces one or more hydroxyl ion or hydroxide ion (OH-) in aqueous solution.

Examples

Please note: (aq) stands for aqueous which means in the presence of water that is, water acts as a solvent.

Bases consists of a cation and hydroxide as its anion in the above examples.

Arrhenius Theory: An acid is a substance which produces one or more hydrogen ions, (H+) in aqueous solution.

Examples:

Bronsted Lowry Theory:

An acid is a substance that can donate one or more proton  

A base is a substance which can accept one or more protons

HA (acid) loses H+ to form A-

B (base) gains H+ to form HB+

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.