Regarding the topic moles , when do we know whether they want us to multiply with the number of atoms and the avogadro's number or just divide/multiply by the avogadro's number only.

Why is nh3 classified as a polar molecule

What volume of a 0.0606 m solution of strontium bromide is needed to obtain 0.340 mol of the compound? question 42 options: a)5.61 l b) 3.4 l c) 600 ml d) 1 l e) 178 ml

Which answer tells the reason the earth’s climate is getting warmer? too many animals are becoming extinct. large glaciers are melting in antarctica. the earth is moving closer to the sun. driving cars gives off gases that trap heat in the atmosphere.