Intermolecular Forces Essay

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Intermolecular Forces and Bonding Interactions

Intermolecular forces are the forces that hold molecules together. These forces responsible for many of the properties of molecules such as boiling point, freezing point, reactivity, etc. There are four types of intermolecular forces. These forces include the ionic bond which is the transfer of electrons between two ions. The ionic bond happens only when one atom is much more electronegative than the other. This bond interaction is by far the strongest of the four. An example of the ionic interaction is NaCl or table salt – the Na atom is the positively charged ion while the Cl is the negatively charged ion. The second intermolecular force is the dipole-dipole force. It is considered a covalent bond but the bond is not completely covalent. In this particular bond, the electron sharing is not completely even thus placing the bond as a polar covalent bond. In this type of bond, the electron density shifts …show more content…

Three simple questions to get students thinking about intermolecular forces are listed at the end of the lab: Based on your observations about how the food coloring interacted with the oil versus the water, what intermolecular forces might exist around its molecules? Do IMFs alter a compound’s ability to react? Use observations in the lab to support your answer. If oil and water have opposite IMFs, why do they seem to mix at the border between them? (Seigel, 2015)

Students will then go on the watch the video from http://www.tubechop.com/watch/6785721. The students will end with three worksheets discussing certain aspects concerning IMFs. The students will be given questions on the Unit Test such as: What causes dipole-dipole interactions? and Why is hydrogen bonding only possible with hydrogen? The topic is not as important as others but it is a topic that students can grasp fairly

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