Acids And Bases

Question 1

What is an acid

Answer 1

A substance that releases hydrogen ions in an aqueous solution

Question 2

Characteristics of acids

Answer 2

Corrosive
Sour
Conductors electricity
Neutralises by bases

Question 3

If lots of hydrogen ions are released, is the acid strong or weak?

Answer 3

Strong

Question 4

What is a base

Answer 4

A bases is a substance that releases hydroxide ions (OH-) into an aqueous solution

Question 5

If a bases can be dissolved into water it is also known as a….

Answer 5

Alkaline

Question 6

Characteristics of bases

Answer 6

Caustic
Soapy slimy feel
Bitter
Conduct electricity
Neutralised by acids

Question 7

Bases have a ph of of

Answer 7

Higher than 7

Question 8

Acids have a PH of

Answer 8

Lower than 7

Question 9

PH scale can be measured by

Answer 9

Ph meter
Litmus paper
Red cabbage indicator

Question 10

Name 2 strong acids and their chemical equation

Answer 10

Nitric acid- HNO3
Sulfric acid-H2SO4
Hydrochloric acid- HCl

Question 11

2 Weak acids and their chemical formulas

Answer 11

Citric acid- C6H8O7
Lactic acid (milk) -C3H6O3

Question 12

2 Strong bases and their formulas

Answer 12

Calcium hydroxide- Ca(OH)2

Sodium hydroxide- NaOH

Question 13

2 Weak bases and their chemical formulas

Answer 13

Ammonia- NH3

Sodium carbonate- Na2CO3

Question 14

What is vinegars acid?

Answer 14

Acetic acid- CH3OOH weak acid

Question 15

Product of an acid and metal

Answer 15

Hydrogen gas and salt

Question 16

Product of acid and base

Answer 16

Salt and water

Question 17

Product of Carbonate and acid

Answer 17

Salt, carbondoixide and water

Question 18

Why does a cake rise?

Answer 18

Bicarbonate soda produces carbon dioxide which rises and gets trapped on the surface of the cake making it rise.