redox Flashcards
1
Q
redox half equation for the reduction of the nitrate ion in acidified solution to form nitrogen monoxide and water
A
4H+ + NO3- + 3e- —> 2H2O + NO
2
Q
redox half equation for the oxidation of the sulfide ion in aq solution to form the sulfate ion and H+ (aq) ions
A
S2- + 4H2O —> SO42- + 8e- + 8H+
3
Q
explain why chlorine is used to kill bacteria in swimming pools, even though chlorine is toxic
A
only used in small amounts
health benefits outweigh risks
4
Q
pool manager maintains water just above 7 ph. Explain how this affects the equilibrium established when chloride is added to water
A
hydroxide/ alkali ions react with acids
equilibrium shifts to the right
5
Q
redox reaction of chlorine with water
A
Cl2 + H2O ⇌ HOCl + HCl
6
Q
A
