Chem exam 3

Oxidation (Anode)

Where electrons are lost, the side giving up electrons. 

Reduction (Cathode)

Where electrons are gained, the side pulling/accepting electrons

emf equation

E cell= E eathode - E anode

-E anode is?

oxidation potential

E anode is?

Reduction potential

If E cell is positive then the reaction is spontaneous

True

What occurs at the Anode in an electrochemical cell?

Oxidation occurs here. Electrons are produced/lost. (E^\circ value is lower / gets oxidized)

What occurs at the Cathode in an electrochemical cell?

Reduction occurs here. Electrons are consumed/gained. (E^\circ value is higher / gets reduced). 

What is a Galvanic Cell?

An apparatus for generating electricity through the use of a spontaneous chemical reaction.

What is the purpose of the Standard Hydrogen Electrode (SHE)?

It is used as a reference electrode with an assigned potential of 0\text{ V} to calculate the potentials of all other electrodes. 

How do you solve oxidation states/ numbers questions?

1. look at the overall charge

2. assign the elements with its electron charge

3. set up the algebra for the unknown element

Oxidation example problem

True

elements oxidation chart

True