A 5 gm/100 ml solution of drug X is stored in a closed test tube at 25°C. If the rate of degradation of the drug is 0.05 day-1,
calculate the time for the drug concentration to degrade to
2.5 mg/ml.

By what primary heat transfer mechanism does the sun warm the earth?

Which is the most accurate name for the ionic compound cas?

Atoms seldom exist as independent particles in nature a) as single particles, most atoms have low potential energy b) their electronegativity is much lower when they combine with other atoms c) atoms are more stable when they combine with other atoms d) neutral particles are rare