K, ca, sc is the right answer. Take a look at table S of your chemistry reference table.
Answer:
Freezing and condensation
Explanation:
Because they are exothermic, they release energy
Answer:
D
We don't have a way to contain the radioactive waste produced.
Explanation
Nuclear waste is non disposable and takes millions of years to biodegrade and lose it radio activeness
Answer:
The answer to your question is:
Explanation:
Iron (III) ⇒ Iron (II)
Fe⁺³ + 1e⁻ ⇒ Fe⁺²