The half-life of phosphorous-32 is 14.28 days. How many days are required for 4.68 g to remain if you start with 74.88 grams

The p sub shell can hold up to 8 electrons in an atom. true or false?

In a laboratory, 1.55mg of an organic compound containing carbon, hydrogen, and oxygen is burned for analysis. this combustion resulted in the formation of 1.45mg of carbon dioxide and .89 mg of water. what is the empirical formula for this compound?

How is the solubility of a carbon dioxide gas in water increase?