What is the mass number of an atom with 17 protons, 17 electrons, and 18 nuetrons?

Why is the structure of molecule important to its function?

Which statement characterizes synthetic polymers? a. they come from animals and plants. b. they are found in nature. c. they are made in a lab. d. they are components of starch.

Will a solution form when the solvent and solute are both nonpolar? a. not likely b. never c. most likely