C4- Making a salt,redox equations, pH of acids and electrolysis

Question 1

What is the equation for neutralisation?

Answer 1

acid+base—>salt+water

Question 2

Name some strong acids

Answer 2

Hydrochloric, sulfuric,nitric

Question 3

Name some weak acids

Answer 3

ethanoic, citric, carbonic

Question 4

What are metal OXIDES and metal HYDROXIDES?

Answer 4

Bases

Question 5

Give the order of the reactivity series from most to least reactive

Answer 5

Potassium
Sodium
Lithium
Calcium
Magnesium
CARBON
Zinc
Iron
HYDROGEN
Copper

Question 6

What is oxidation?

Answer 6

gain of oxygen

Question 7

What is reduction?

Answer 7

loss of oxygen

Question 8

A loss of electrons is called…..

Answer 8

Oxidation

Question 9

A gain of electrons is called…..

Answer 9

Reduction

Question 10

What are REDOX reactions?

Answer 10

where a reactive metal displaces a less reactive metal

Question 11

What does Electrolysis mean?

Answer 11

Splitting up with electricity

Question 12

The positive electrode is called the….

Answer 12

anode

Question 13

The negative electrode is called the….

Answer 13

cathode

Question 14

What happens at the negative electrode?

Answer 14

Metals are attracted as they form positive ions (opposites attract) So for example, aluminium is formed at the cathode

Question 15

What happens at the positive electrode?

Answer 15

Non-metals are attracted as they form negative ions (opposites attract) so for example, oxygen is formed at the anode