Ion electron Equations and Redox Equations

Question 1

how would you balance an ion electron equation

Answer 1

add electrons to the side which are more positive

Question 2

what are the four steps to balancing an equation with more than one element in it

Answer 2

take this equation for the example BrO4^- –> Br2

1. Balance the “non-oxygen” –> 2BrO4^- –> Br2
2. Balance the Oxygens by adding H2O
   2BrO4^- –> Br2 + 8H2O
3. balance the the new H’s by adding H^+ ions
   16H^+ + 2BrO4^- –> Br2 + 8H2O
4. balance the charges by adding electrons to the more positive side
   14e^- + 16H^+ + 2BrO4^- –> Br2 + 8H2O

Question 3

what does the acronym OILRIG stand for

Answer 3

Oxidation
Is
Loss
Reduction
Is
Gain

Question 4

what is a reducing agent

Answer 4

a reducing agent is the substance being oxidised

Question 5

what is an oxidation agent

Answer 5

an oxidation agent is the substance which is being reduced

Question 6

in terms of the periodic table where are the best reducing agents

Answer 6

group 1 has the best reducing agents

Question 7

in terms of the electrochemical series where are the best reducing agents

Answer 7

the top right (Li is the strongest)

Question 8

in terms of the periodic table where are the best oxidation agents

Answer 8

group 7 has the best oxidation agents

Question 9

in terms of the electrochemical series where are the best oxidation agents

Answer 9

the bottom left (F is the strongest)