Chapter 6 -Types of Reaction

Question 1

What is the definition of an acid?

Answer 1

An acid is a proton donor

Question 2

What is the definition of a base?

Answer 2

A base is a proton acceptor

Question 3

When acids and bases react with water, they form a ………. reaction.

Answer 3

Reversible

Question 4

Alkali produce … ions when added to water.

Answer 4

OH-

Question 5

Acids produce .. ions when added to water.

Answer 5

H+

Question 6

In a weak acid, the ……… reaction is favoured, so not many H+ ions are produced.

Answer 6

Backwards

Question 7

In a strong acid, the …….. reaction is favoured, so lots of H+ ions are produced.

Answer 7

Forwards

Question 8

In a strong base, the …….. reaction is favoured, so lots of OH- ions are produced.

Answer 8

Forwards

Question 9

In a weak base, the ……… reaction is favoured, so not many OH- ions are produced.

Answer 9

Backwards

Question 10

Acids and bases react to form ….., which are pH ……., and water.

Answer 10

Salts
Neutral

Question 11

Metal + Acid =>

Answer 11

Salt and hydrogen

Question 12

Metal Oxide + Acid =>

Answer 12

Salt and water

Question 13

Metal Hydroxide + Acid =>

Answer 13

Salt and water

Question 14

Metal Carbonate + Acid =>

Answer 14

Salt, carbon dioxide, and water

Question 15

What is oxidation?

Answer 15

Loss of electrons, gain of oxygen, increased oxidation number

Question 16

What is reduction?

Answer 16

Gain of electrons, loss of oxygen, decreased oxidation number

Question 17

What is a reducing agent?

Answer 17

The atom which loses electrons, and is therefore oxidised

Question 18

What do the Roman Numerals indicate in Iron (III) Oxide?

Answer 18

The oxidation number of the iron is +3

For transition metals with variable oxidation numbers, roman numerals indicate the oxidation number.