Redox reactions

Question 1

what is oxidation

Answer 1

lost of electrons

Question 2

What is reduction

Answer 2

gain of electrons

Question 3

What is spectator ions

Answer 3

ions that are present during the reaction but remain chemically unchanged

Question 4

How to balance a redox reaction

Answer 4

1) Write the two half equations
2)Balance atoms
3)Balance O atoms using H2O, and H atoms using H+
4)Balance charges (multiple the half equation)
5)Add both half equations together

Question 5

Assigning oxidation numbers- elements in their standard states

Answer 5

0

Question 6

Assigning oxidation numbers- simple ions

Answer 6

charge on the atom

Question 7

Assigning oxidation numbers- molecules or compounds

Answer 7

sum of oxidation is 0

Question 8

Assigning oxidation numbers- complex ions

Answer 8

The sum of the oxidation states of all the atoms in an ion is equal to the charge on the ion

Question 9

how to find the max oxidation state

Answer 9

‘+group no’

Question 10

how to find the min oxidation state

Answer 10

‘Group number - 8’

Question 11

what is oxidising agent?

Answer 11

substance that gains electrons (Reduced in the reaction) in a chemical reaction and causes another substance to be oxidised.