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Compared to water ice is less dense this is due to hydrogen bonds in the open lattice holding the H₂O molecules apart whereas in liquid form the hydrogen bonds break allowing the molecules of w...

Lithium - Bright Red/Scarlet Barium - Apple green

Crude oil is separated by fractional distillation. The mixture of components is put in the distillation tube and heated. The different liquids start to evaporate and move up the fraction Column. The compo...

Molecular shape depends on the number of electron pairs around the central atom. Electrons are negatively charged and so each of the electron pairs will repel each other. Lone pairs tend to repel more tha...

During fractional distillation, the process of heating a mixture is used to seperate fractions. Each fraction has a different boiling point. As we begin to heat the mixture, the substance...