The half life of lodine-125 is 60 days. If you start with 200 grams, how many grams would remain after 240 days?

If a reactant was removed, did the new equilibrium system shift to make more reactants or more products?

If an area has high air pressure and low humidity, what type of weather will it most likely have? plz !

Water is initially present in a state where its molecules are far apart. during a change of state, its molecules slow down. which change of state has most likely taken place? from a gas to a liquid from a liquid to a gas from a solid to a liquid from a gas to a plasma