Answer:
It also represents the number of molecules of that compound. has 4 sodium atoms, 2 sulphur atoms, and 8 oxygen atoms. When you count atoms, remember to multiply the coefficient number and the subscript number to find the number of atoms of that element.
Explanation:
Instead of physically counting each one we can measure the mass of a large group of them. If we know the mass of just one atom or molecule then we can figure out how many we have.
Avogadro's Number and MoleIn
chemistry, it is impossible to deal with a single atom or molecule because we can't see them, count them, or weigh them.
希望对你有帮助/ Hope it helps you
