Redox reaction occurring in acidic aqueous solution

Reference no: EM13112080

1. Balance the following nuclear decay equation:

2. Which of the following isotopes is more likely to decay via positron emission rather than electron emission? Choose from:
211Pb
16C
17F
46S
68Fe

3. A given isotope has a half-life of 10.0 years. How long will it take a sample of this isotope to decay to 1/8 its original amount? Choose from:
10 years
20 years
30 years
50 years
80 years

4. Balance each redox reaction occurring in acidic aqueous solution. Express your answer as a chemical equation. Identify all of the phases in your answer.

- Ni(s)+Cd 2+ (aq)→Ni 2+ (aq)+Cd(s)
- Zn(s)+Na + (aq)→Zn 2+ (aq)+Na(s)
- MnO 4 - (aq)+Al(s)→Mn 2+ (aq)+Al 3+ (aq)

Reference no: EM13112080

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