DM - More on redox reactions

Question 1

Its a redox reaction if what happens?

Answer 1

If electrons are transferred.

Question 2

A loss of electrons is called what?

Answer 2

Oxidation.

Question 3

A gain of electrons is called what?

Answer 3

Reduction.

Question 4

What is oxidation?

Answer 4

A loss of electrons.

Question 5

What is reduction?

Answer 5

A gain of electrons.

Question 6

What is a redox reaction?

Answer 6

When reduction and oxidation happens simultaneously.

Question 7

What does a reducing agent do?

Answer 7

Donates some of its electrons to reduce something - and gets oxidised itself.

Question 8

Are reducing agents oxidised or reduced?

Answer 8

Oxidised.

Question 9

The more powerful a reducing agent is…

Answer 9

…the more easily it can be oxidised.

Question 10

How easily a reducing agent is oxidised depends on what?

Answer 10

How powerful it is.

Question 11

What does an oxidising agent do?

Answer 11

Takes electrons away from something to oxidise it - and gets reduced itself.

Question 12

Are oxidising agents oxidised or reduced?

Answer 12

Reduced.

Question 13

The more powerful the oxidising agent…

Answer 13

…the more easily it can be reduced.

Question 14

How easily an oxidising agent is reduced depends on what?

Answer 14

How powerful it is.

Question 15

What is used to show what has been reduced and what has been oxidised?

Answer 15

half equations

Question 16

What can be combined to give a full redox equation?

Answer 16

An oxidation half equation and a reduction half equation.

Question 17

Are electrons included in the full redox equation?

Answer 17

no

Question 18

What atoms do you use to balance half equations?

Answer 18

H+, e-, and H2O

Question 19

How can you balance half-equations?

Answer 19

Multiplying up reactants and products or adding H+, e- or H2O.