The equation below shows the splitting of water to give hydrogen and oxygen. Work out how much energy is
needed to break the bonds in this reaction. Use the table to help you.

2H20
→
2H2 + O2

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Ibelieve the answer is d. titaniumhope my answer has you : )

Radon-222 or rn-222 has a half-life of 3.82 days. to determine the fraction of an original sample of rn-222 that remains unchanged after 7.646 days, we calculate the amount of rn-222 remaining after 7.646 days and divide it with the original amount. using 1 gram as a basis and using half-life calculation methods, we can determine that  0.249 or 0.25  grams of rn-222 will remain, and thus the fraction remaining is 0.25 or 1/4.

Answerlimiting reactant;