Redox Reactions
The process happening when the oxidation number of an element decreases after the reaction
What is reduction?
The oxidation number of O2
What is 0?
The electrode where oxidation occurs
What is the anode?
Poor people have it. Rich people need it. If you eat it you die. What is it?
Nothing
An ion that does not change in oxidation number.
What is a spectator ion?
The oxidation number of hydrogen in H2O
The role of the salt bridge in an electrochemical cell
What is balancing the charge in each half-cell?
What do the letter "t" and an island have in common?
They're both in the middle of water.
Identify the elements that are being oxidized and reduced in the reaction: 4AsO (g) +O2 (g) → 2As2O3
What is As is oxidized and Oxygen is reduced?
The oxidation number of Mn in MnO2.
What is +4?
A electrochemical cell that drives a nonspontaneous process
What is an electrolytic cell?
It belongs to you, but your friends use it more. What is it?
Your name
Balance the Reaction:
___Cl2O5 +____ CO →____ Cl2 + ____CO2
What is Cl2O5 +5 CO → Cl2 + 5 CO2?
The oxidation number of Al in any compound.
What is +3?
The potential of a voltaic cell with the following half reactions:
Pb2+ + 2e- → Pb (s) Eo = -0.13 V
Ni2+ + 2e- → Ni (s) Eo = -0.26 V
What is 0.13 V?
You measure my life in hours and I serve you by expiring. I’m quick when I’m thin and slow when I’m fat. The wind is my enemy.
A candle
Identify the oxidized element and the reduced element
H2S (g) + SO2 (g) → S (s) + H2O (l)
What is Sulfur?
The oxidation number of each element in (NH4)2SO4
What is N=+3, H=+1, S=+6, O=-2?
The man who made the first battery
What word in the English language does the following:
The first two letters signify a male, the first three letters signify a female, the first four letters signify a great, while the entire word signifies a great woman. What is the word?