A single bond represents 4 electrons.
True
O False

One nanometer is equal to how many meters?

Once similarity and one difference between a mixture of elements and a mixture of compounds

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.