Two beakers contain clear, colorless liquids. When the contentsof the beakers are mixed a white solid is formed. (a) Isthis an example of a chemical or a physical change? (b) Whatwould be the most convenient way to separate the newlyformed white solid from the liquid mixture—filtration, distillation,or chromatography.
States of Matter
The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates).
Chemical Reactions and Equations
When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.
Two beakers contain clear, colorless liquids. When the contents
of the beakers are mixed a white solid is formed. (a) Is
this an example of a chemical or a physical change? (b) What
would be the most convenient way to separate the newly
formed white solid from the liquid mixture—filtration, distillation,
or chromatography.
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