How many molecules are in 228.7 grams of KBr?

How many electrons does silver have to give up in order to achieve a sido noble gas electron configuration

Select all of the methods through which a drug can enter your body. injection swallowing inhalation absorption

Harry lives in a city, and he has a lung condition known as asthma. on certain days, harry has to stay inside because pollutants in the air make it difficult for him to breathe. which of these pollution sources are nonpoint sources that might bother harry if he goes outside? choose the two that apply.