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.
What properties distinguish solids from liquids? Liquids from gases? Solids from gases?
Solids have no empty spaces between the molecule which gives them a definite and rigid structure.
Liquids have empty spaces between the molecules and have definite volume as the molecules don’t get separated from each other. Liquids lack definite structure due these inter-molecular spaces. Molecules in liquid can move past one another and that’s why liquids can flow easily and also attain the shape of the container. Because of this inter-molecular space the liquids can be compressed easily.
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