Displacement reactions

Question 1

Definition of a displacement reactions?

Answer 1

• when a more reactive element displaces, or pushes out, a less reactive element from a compound

Question 2

Chlorine will displace.……. and ……. from a solution of salt solution as it is ……. reactive.

Answer 2

Bromine, Iodine, More

Question 3

Bromine will displace …….. from a salt solution as it is ……… reactive , but will not displace ……. as bromine is ……reactive than it.

Answer 3

Iodine, More, Chlorine, Less

Question 4

lodine cannot displace ..…… Or…….. as it is …… reactive than both of them.

Answer 4

Chlorine, Bromine, Less

Question 5

What is the symbol equation for Chlorine and Potassium Bromide —> Potassium Chloride + Bromine

Answer 5

Cl2 + 2KBr —> 2KCl + Br2

Question 6

How to do a Ionic Equation

Answer 6

• remove the ‘spectator ions’ i.e anything that doesn’t change the reaction
• charge of element without ‘spectator ion’
• balance all charges

Question 7

Redox definition

Answer 7

Oxidation and reduction occurring at the same time in a reaction

Question 8

Oxidation:

Answer 8

When a substance gains oxygen or LOSES ELECTRONS

Question 9

Reduction:

Answer 9

When a substance loses oxygen or GAINS ELECTRONS

Question 10

OIL RIG :

Answer 10

Oxidation LOSES e-
Reduction GAINS e-

Question 11

Br2 + 2I- —> 2Br- + I2
What is the oxidised and reduced

Answer 11

O: Iodine
R: Bromine

Question 12

What is a oxidising agent?

Answer 12

Oxidising agent accepts electrons and gets reduced

Question 13

What is a reducing agent?

Answer 13

Reducing agent donates electrons and gets oxidised