NEED HELP ASAP! The uncoiling of deoxyribonucleic acid (DNA) is a first-order reaction. Its activation energy is 420 kJ. And at 37°C, the rate constant is 4.90 × 10–4 min–1.

What is the half-life of the uncoiling at 37°C (normal body temperature)?

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While unproven, it uses facts to support part of a conclusion. it is still factual and has predictive power, however.

You would be correct, boiling water does disinfect contamination.    the property of disinfecting means to kill  germs, bacteria and other pathogens or contamination  that might cause an infection or cause a person to become sickly. a couple methods of disinfecting are using soap, other cleaning supplies or by simply "boiling" the contaminate.  the reason why boiling water disinfects certain attributes is because some cells cannot survive the heat and pressure.