Chemical Bonding Quiz_do - From null <Saved by Internet Explorer 11> Date Wed 16 Sep 09-0500 To CC Subject:Chemical Bonding Quiz Chemical Bonding Quiz

Chemical Bonding Quiz_do - From null <Saved by Internet...

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Started: Submitted: Score: Points: Points: 10 out of 10 Points: 0 out of 10 From: null <Saved by Internet Explorer 11> Date: Wed, 16 Sep 2015 09 50 09 -0500 To: CC: Subject:Chemical Bonding Quiz Chemical Bonding Quiz Attempt 1 of 2 08/24/2015 9:10 AM EDT 08/24/2015 9:27 AM EDT 80% 80 out of 100 Question 1 The lines on the above drawing of caffeine indicate: A. Covalent bonds B. Hydrogen bonds C. Ionic bonds D. Polar bonds Feedback Correct. Covalent bonds are drawn as straight lines. Question 2 Will O form a polar covalent bond? A. Yes, because oxygen is very electronegative. B. Yes, because oxygen is not very electronegative. C. No because hydrogen is needed to form polar covalent bonds D. No, because both atoms are equally electronegative. Feedback Incorrect. Oxygen is electronegative, but polar covalent bonds are formed when a molecule has atoms of different electronegativity. This molecule has 2 oxygen atoms; so both have the same electronegativity. Question 3 2
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