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12 notecards = 3 pages (4 cards per page)

Viewing:

Chemistry 2

front 1

What is the coefficient for OH−(aq) when SO3 2−(aq) + MnO4 −(aq) → SO4 2−(aq) + Mn2+(aq) is balanced in basic aqueous solution?

6

3

2

1

back 1

6

front 2

What is the coefficient for H2O(l) when S2−(aq) + NO3 −(aq) → S(s) + NO(g) is balanced in acidic aqueous solution?

4

2

1

3

back 2

4

front 3

What is the coefficient for H2O(l) when MnO4 −(aq) + Fe2+(aq)→ Mn2+(aq) + Fe3+(aq) is balanced in acidic aqueous solution?

4

2

6

1

back 3

4

front 4

What is the coefficient for H2O(l) when Sn2+(aq) + IO3 −(aq) → Sn4+(aq) + I−(aq) is balanced in acidic aqueous solution?

3

2

1

4

back 4

3

front 5

What is the coefficient for H2O(l) when PbO2(s) + I2(s) → Pb2+(aq) + IO3 −(aq) is balanced in acidic aqueous solution?

4

2

10

6

back 5

4

front 6

What is the coefficient for H2O(l) when SO4 2−(aq) + Br2(l) → S2O3 2−(aq) + BrO3 −(aq) is balanced in acidic aqueous solution?

1

6

12

24

back 6

1

front 7

What is the coefficient for OH−(aq) when SO4 2−(aq)+ Br2(l) → S2O3 2−(aq) + BrO3 −(aq) is balanced in basic aqueous solution?

2

1

3

4

back 7

2

front 8

What is the coefficient for H2O(l) when SO3 2−(aq) + MnO4 −(aq) → SO4 2−(aq) + Mn2+(aq) is balanced in acidic aqueous solution?

3

1

2

6

back 8

3

front 9

What is the coefficient for OH−(aq) when PbO2(s) + I2(s) → Pb2+(aq) + IO3 −(aq) is balanced in basic aqueous solution?

8

6

4

2

back 9

8

front 10

What is the coefficient for OH−(aq) when MnO4 −(aq) + Fe2+(aq) → Mn2+(aq) + Fe3+(aq) is balanced in basic aqueous solution?

8

6

4

2

back 10

8

front 11

How many electrons are needed to balance each of the following half-reactions?

Reduction half-reaction: Fe3+(aq) + _e − → Fe(s)

Oxidation half-reaction: Al(s) → Al3+(aq)+ _e −

Overall reaction: Fe3+(aq) + Al(s) → Fe(s) + Al3+(aq)

3

0

6

2

back 11

3

front 12

What is the coefficient for OH−(aq) when S2−(aq) + NO3 −(aq) → S(s) + NO(g) is balanced in basic aqueous solution?

8

4

6

2

back 12

8