Redox Flashcards
(16 cards)
What is le chateliers principle
When a system is subject to change, the system will alter to lessen the effect of that change
Why is equilibrium dynamic?
Closed system
Rate of both reactions is constant
What does increasing Temp do?
Favours Endo reaction
(+tive)
What does decreasing temp do?
Favours Exo reaction
(-tive)
What does increasing pressure do?
Favours side with fewer moles
Increases yeild
What does decreasing pressure do?
Favours side with more moles
Increases yeild
What does increasing conc do?
More product made
What does decreasing conc do?
More reactants made
What does a catalyst do?
No effect on equilibrium
Quicker to react
Equation for Kc
Multiply Products / Multiply Reactants
OIL RIG
Oxidation is loss
Reduction is gain
Oxidation No. is equal to what?
Oxidation state
What are the oxidation states of the following:
Charged compounds
Neutral compounds
Elements
Oxygen
Halogen
Grp 1
Charged compounds - total
Neutral compounds - 0
Elements - 0
Oxygen - -2
Halogen - -1
Grp 1 - +1
What is an oxidising agent in terms of electrons?
-Gains electrons (reduced) by accepting the donated electrons of an oxidised species
What is an reducing agent in terms of electrons?
-Loses electrons (oxidised) by donating electrons to the reduced species
How do you balance half equations?
1- all species
2- oxygen = H20
3- Hydrogen= H+
4- Charges =e-
