Answer:
H_2O + 2CrO_4^2- + 3SO_3^2- -> 3SO_3^2- + 2CrO_2^- + 2OH^-
Explanation:
Reduction half reaction
2H_2O + CrO_4^2- + 3e -> CrO_2^- + 4OH^-
Oxidation half reaction
2OH^- + SO_3^2- -> SO_4^2- + H_2O + 2e
Balanced overall equation
H_2O + 2CrO_4^2- + 3SO_3^2- -> 3SO_3^2- + 2CrO_2^- + 2OH^-
Well, with asexual reproduction you are actually making a genetic copy or the original organism, almost like a clone -- their is no genetic difference between the org organism and its "offspring."
With sexual reproduction the goal is to is to create 4 sex cell either sperm or egg cells. When cells split in sexual reproduction it enables for the off spring to have a great range of genetic diversity. The offspring will be a completly unique not like the mother or father but sharing traits for both. The main benefit of sexual reproduction is genetic diversity.
12.5% of strontium-90 would remain in a sample after three half-lives have passed. Half-life automatically means 50% of the original amount would remain.