Which branch of Biology do you feel would be the most interesting for you to
pursue as a career?

An atom of sodium-23 (atomic number = 11) has a positive charge of +1. give this information, how many electrons does it have? how many proteins and neutrons does this atom have

If 90.0 grams of ethane reacted with excess chlorine,how many grams of dicarbon hexachloride would form

One similarity and one difference between an element and a mixture of elements