A blue crystal is placed in water. After stirring, the crystal disappears and the water becomes blue. The liquid is then heated. Eventually all of the water evaporates and many small blue crystals appear. Has a chemical reaction taken place?
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.
A blue crystal is placed in water. After stirring, the crystal disappears and the water becomes blue. The liquid is then heated. Eventually all of the water evaporates and many small blue crystals appear. Has a
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