120 grams of NaOH means 3 Moles of NaOH because 40 grams (Molecular Weight in grams) is one mole of NaOH.
Each mole of any substance contain Avogadro’s number of molecules ie., 6.022 x (10 to the power 23).
Hence 3 Moles of NaOH contain 3 times of Avogadro’s number of molecules ie., 3 x 6.022 x (10 to the power 23)
Sublimation is solid to a gas, during the process of sublimation energy is absorbed.
They react to form salt ZnCl + hydrogen gas
C.
Water is polar because one side of the molecule is positive and the other is negative.
