Acids and Bases

Question 1

What is a Acid

Answer 1

A substance which provides H+ (hydrogen ions)

Question 2

what is a base

Answer 2

Any compound that reacts with an acid to neutralise it and produce water

Question 3

what is a pH scale

Answer 3

scale from 0-14 that measures the concentration of H+ ions

Question 4

pH

Answer 4

The value that is used to express the acidity of a solution

Question 5

what is Neutralisation

Answer 5

the reaction of an acid and base to form a neutral solution of water and salt

Question 6

What is a indicator ?

Answer 6

A compound that can change colour depending on conditions such as pH

Question 7

What is an Alkali?

Answer 7

Releases OH- ions in solution; a soluble base

Question 8

What is HCI

Answer 8

The chemical formula for hydrochloric acid

Question 9

What is the formula for sulphuric acid

Answer 9

H₂SO₄

Question 10

What is the formula for nitric acid

Answer 10

HNO₃

Question 11

Whats a strong acid ?

Answer 11

An acid that fully dissociates when in solution to produce H+ ions

Question 12

what is neutral on a pH scale

Answer 12

A substance that is 7 on the pH scale

Question 13

What is a weak acid

Answer 13

An acid that only partially dissociates when dissolved in water to produce H+ ions

Question 14

what is sulphates

Answer 14

salts formed by sulphuric acid reacting with a base/alkali

Question 15

what does this do carbon dioxide + salt + water

Answer 15

products of a carbonate reacting with an acid

Question 16

what are nitrates

Answer 16

the salts produced by nitric acid reacting with bases/alkalis

Question 17

what are chlorides

Answer 17

the salts produced by hydrochloric acid reacting with bases/alkalis

Question 18

what is the colour of litmus in acid

Answer 18

red

Question 19

colour of litmus in alkali

Answer 19

blue

Question 20

what is the colour of phenolphthalein in acid

Answer 20

colourless

Question 21

colour of phenolphthalein in alkali

Answer 21

pink