Thursday, November 5, 2009
You Light Up of My Life and Bonds
Yesterday, we did a lab with conductivity. I made predictions on whether I thought each substance would conduct electricity. Most of my predictions were correct. When ionic compounds were tested, they did not conduct electricity. When we dissolved them in water, they conducted electricity. Both of the metals aluminum and copper conducted electricity. Covalently bonded compounds do not conduct electricity. We learned about different types of bond and their properties. The new type of bond that I learned was molecular covalent. They form between two nonmetals. They do not conduct electricity and tend to be liquids and gases or softer solids. Tomorrow we have a test on light, ions, and bond types.
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