1. Recently I have completed unit 7. We tested on it and I didn't do as bad as I thought I would.
2. Recently I have learned about the order of reactions. I thought I wouldn't understand this unit because of the math but it's actually not hard.
3. I have been struggling with motivation lately. I plan on just sucking it up and kicking it into high gear.
Friday, March 13, 2015
Thursday, March 5, 2015
VSEPR Lab
There are four types of solids: Covalent-network which are joined by an extensive network of covalent bonds, molecular which discrete molecules that are linked together by van der Waals forces, ionic which are cations and anions attracted to each other, and metallic which share a network of highly delocalized electrons. We used melting points, solubility, and electrical resistance as the defining properties. I would predict that citric acid was an ionic solid, zinc was metallic, charcoal was molecular, CaCl2 was covalent network, and sand was also metallic. Citric acid is a molecular solid, Zinc is a metallic solid, charcoal is a covalent-network, CaCl2 is ionic, and sand is also molecular.
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