Bromine- is radioactive and has a half life of seconds. Calculate the activity of a sample of bromine-. Give your answer in becquerels and in curies. Round your answer to significant digits.

In this chemical reaction, 325 grams of barium (ba) react completely. how many moles of lithium (li) are produced?

How can one make a supersaturated solution? (apex)

Assuming complete dissociation of the solute, how many grams of kno3 must be added to 275 ml of water to produce a solution that freezes at -14.5 c? the freezing point for pure water is 0.0 c and k_f is equal to 1.86 c/m