2.1.5 Redox

Question 1

what is the oxidation number of an uncombined element

Answer 1

0

Question 2

what do all the oxidation number of all the atoms in a molecule add up to

Answer 2

0

Question 3

what is the oxidation number of a simple ion

Answer 3

the charge of the ion

Question 4

what do the oxidation numbers of atoms in a molecular ion add up to

Answer 4

the charge of the ion

Question 5

oxidation number of group 1 metals

Answer 5

+1

Question 6

oxidation number of group 2 metals

Answer 6

+2

Question 7

oxidation number of group 3 metals

Answer 7

+3

Question 8

fluorine oxidation number

Answer 8

-1

Question 9

hydrogen oxidation number

Answer 9

+1

Question 10

oxygen oxidation number

Answer 10

-2

Question 11

hydrogen oxidation number in metal hydrides

Answer 11

-1

Question 12

oxygen oxidation number on perioxides

Answer 12

-1

Question 13

oxidation

Answer 13

loss of hydrogen
loss of electrons
gain of oxygen

Question 14

reduction

Answer 14

gain of hydrogen
gain of electrons
loss of oxygen

Question 15

what is a disproportionation reaction

Answer 15

the simultaneous oxidation and reduction of the same element in the same redox reaction