Unit 7- redox reaction

Question 1

Do oxidation and reduction happens in the same time

Answer 1

yes

Question 2

The name of the reaction happened if the atom gains an electron

Answer 2

reduction

Question 3

The name of the reaction happened if the atom loses an electron

Answer 3

oxidation

Question 4

The name of the reaction happened if the atom gains oxygen

Answer 4

oxidation

Question 5

The name of the reaction happened if the atom loses oxygen

Answer 5

reduction

Question 6

Any reaction in which electron transfer takes place is ______________

Answer 6

a redox reaction

Question 7

Mgㅡ> (mg 2+) + (2e-)

is this oxidation or reduction

Answer 7

oxidation because the electrons are separated ( lost ) from the atom after the reaction

Question 8

(O2) + (4e-) ㅡ> 2O 2-

is this oxidation or reduction

Answer 8

reduction because electrons are combined (gained) with the atom before the reaction

Question 9

What is the oxidation state

Answer 9

the number of electrons for the atom to lose or gain to form a compound

Question 10

The oxidising agent is the substance that gets ______ in the reaction

Answer 10

reduced

Question 11

Reducing agent is the substance which gets ________ during the reaction

Answer 11

oxidised