Copy of Skill Check #4.3 (Investigation 4 Experience 3) (7/30/2025)
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Last updated 4 months ago
5 questions
Required
2 points
2
Question 1
1.
Which of the following chemical substances has a double covalent bond?
Required
2 points
2
Question 2
2.
Ethylene (C2H4) is a gaseous hydrocarbon which is used to synthesize different types of polymers. Which of the following diagrams represent the electron dot structure of ethylene?
Required
2 points
2
Question 3
3.
If you wanted to change the polarity of hydrogen bromide (HBr) by substituting the bromine for a different atom. Which atom would increase the polarity of the molecule?
Required
2 points
2
Question 4
4.
Read the passage and use the diagram to answer the next question.
The image shows a periodic table with the principle groups, and shows the electronegativities of each atom. This is useful when determining the polarity of a substance.
Which of the following bonds is classified as a polar covalent bond? Polar covalent bonds have a difference in electronegativity between 0.39 and 1.69.
Required
2 points
2
Question 5
5.
Nonpolar substances do not dissolve in polar solvents like water. If you’re conducting an investigation to test the solubility of different substances, which of these substances do you expect to be insoluble in water?