Equations to be memorised Flashcards
1
Q
Produce the element of lead half equation
A
Pb ^2+. + 2e^-
———>
Pb
2
Q
Produce an element of bromine half equation
A
2br^ -
———>
Br^2 + 2e^-
3
Q
How to produce a hydrogen molecule half equation
A
2H^+ + 2e^-
———> H^2
4
Q
How to produce hydroxide ions half equation
A
4OH^-
——>
2H^2 O + O^2 +4e ^-
5
Q
How to produce chlorine half equation
A
2CL^-
———>
Cl^2 + 2e^-
6
Q
How to produce aluminium half equation
A
Al^3+ + 3e^-
——>
Al
7
Q
How to produce oxygen half equation
A
2O^2-
——>
O^2 + 4e^-
8
Q
fuel cell equation for hydrogen reaction
A
2H^2 + 4OH^-
———>
4H^2 O + 4e^-
9
Q
Fuel cell equation for oxygen reaction
A
0^2 + 2H^2 O + 4e^-
———>
4OH^-
10
Q
Negative electrode fuel cells
A
2H^2
——> 4H^+ + 4e^-
11
Q
Positive electrode fuel cells
A
O^2 + 4H^+ + 4e^-
——>
2H^2O
