Consider the following vapor pressure versus temperature plot for four different substances: A, B, C and D. Vapor pressure (torr) 800 600 400 200 0 A 20 40 60 Temperature (°C) If the four substances are water (H₂O), diethyl ether (CH3CH₂OCH₂CH3), ethylene glycol (HOCH₂CH₂OH), and ethanol (CH3CH₂OH), identify which line represents each substance. b) diethyl ether (CH3CH₂OCH2CH3) OA OB OC OD B c) ethylene glycol (HOCH₂CH₂OH) OA OB OC OD 80 d) ethanol (CH3CH₂OH) OA OB OC OD с D (HINT: Use the properties of water to try to identify water first. Then compare IMF of all the substances.) a) water (H₂O) O A OB OC с OD 100
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.
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