whcih of the following substances are elements
water, salt , mercury, iron, marble, diamond, wood , nitrogen, air, graphite, dydrogen, oxygen, sugar, chlorine
Mercury, Iron,Diamond,Nitrogen,Graphite,oxygen,Chlorine and Dihydrogen
Which of the following substances are elements ?
Water, Salt, Mercury, Iron, Marble, Diamond, Wood, Nitrogen, Air, Graphite, Hydrogen, Oxygen, Sugar, Chlorine