Within covalent bonds, there are nonpolar and polar covalent bonds. In nonpolar covalent bonds, the electrons are shared equally or very closely. In polar covalent bonds, one atom has a greater attraction for …show more content…
Unknown partially dissolved, and unknown 1 had not dissolved at all in the distilled water. In ethanol, none of the substances had dissolved. Unknown 3 melted the quickest at 10 seconds and the solution turned transparent. At 20 seconds, unknown 4 melted. Both unknown 1 and 2 had not melted. Unknown 2 burned and turned black at 30 seconds while vapor began to form on the sides of the tube, for unknown 1, at 30 seconds. During the conductivity test,the conductivity for unknown 1, 2, and 3 were all very high with very bright red and medium green, so it was a 4 according to the scale. The conductivity of unknown 4 was low with a dim red and no green lit up, so it was 1 on the scale. For the boiling point test, unknown 2 and 4 started to bubble slightly at 1 minute then 2 turned blue at 3 minutes. 1, 2, 3, and 4 began to steam at 3 min and 30 seconds. 3 started to bubble at 4 minutes. 1 began evaporating at 5 minutes and 2 and 3 began at 6 minutes. Unknown 1 boiled at 100 degrees celsius at 8 minutes, 2 boiled at 101 degrees celsius at 13 minutes, 3 boiled at 100.2 degrees celsius at 10 minutes, and 4 boiled at 98 degrees celsius at 9 minutes and 30