The element zinc is represented by the abbreviation (capitalization is important.)

How many atoms are there in 5.70 mol of mg

In which reaction is precipitation occurring?

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.