Chapter 4 - Acids and redox

Question 1

Acids

Answer 1

Release H+ Ions when dissolved in water. Proton donors

Question 2

Strong acids

Answer 2

Completely dissociate in water to release H+

Question 3

Weak acids

Answer 3

Partially dissociates to release some H+

Question 4

Diprotic acids

Answer 4

Release two protons (H+ Ions). e.g H2SO4

Question 5

Triprotic acids

Answer 5

Release three protons (H+ Ions). e.g H3PO4

Question 6

Bases

Answer 6

Chemicals that will react with protons released by acids. Proton acceptors

Question 7

Alkalis

Answer 7

Soluble bases that release hydroxide ions (OH-) when they dissolve in water

Question 8

Amphoteric

Answer 8

Can be classed as either an acid or a base. e.g water

Question 9

Oxidation number/state

Answer 9

Shows the charge on an atom if all of its bonds were considered totally ionic

Question 10

Redox reaction

Answer 10

Involves the transfer of electrons resulting in both the oxidation and reduction of atoms

Question 11

Disproportionation

Answer 11

When the same element is oxidised and reduced during a reaction

Question 12

Titre

Answer 12

The volume of liquid used in a titration

Question 13

End post

Answer 13

The point where two solutions have fully reacted in a titration