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.
![Consider the pair of compounds shown below then select the word or phrase that best describes the relationship between them...
Et
Et
Me
Et
Et
Me
and
Me
TH
H
Me
H.
O A. They are identical.
O B. They are enantiomers.
OC. None of these are accurate.
O D. They are diastereoisomers.
O E. They are constitutional isomers.
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