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.
Collision theory of reaction rate:
According to the collision theory of reaction rate, the randomly moving reactant molecules collide with each other to convert into product molecules. If the energy of the collision is sufficient enough and the reactant molecule collides in the proper orientation, the collision results in the formation of the product. The number of collisions per second between the reactant molecules depends on the temperature of the reaction.
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