A 1.1 L balloon filled with gas at ground level (troposphere) experiences a pressure of 755 torr, as the balloon rises into the upper mesosphere the balloon swells to 8.75 L until it finally bursts. What was the pressure (in atm) exerted onto the balloon before it bursts?

The correct answer is weight.

Heating it up with cause a quicker reaction time

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.

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