What would be the mass of 3 moles of water molecules?

The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.

How many moles of water are created if 3 moles of hydrogen react completely with excess oxygen?

Exit what is the density of an object having a mass of 5.0 g and a volume of 45.0 cm3?