Question

oxygen has a partial negative charge due to higher electronegativity, and opposite charges attract. d. click reverse field. why does the h₂o molecule rotate 180°? because the positive end of the polar h₂o molecule is now attracted to the new negative plate and the negative end to the new positive plate. a polar molecule, such as h₂o, changes its orientation when placed in an electric field. the positive end of the molecule is attracted to the negative plate, while the negative end is attracted to the positive plate. drag this molecule into the polar bin. 2. observe: drag the ch₄ molecule into the simulation area. a. do you think this molecule will rotate in the electric field? why or why not? no, because ch₄ is a non - polar molecule due to its symmetric tetrahedral shape. b. turn on the electric field. is this molecule polar or nonpolar? non - polar drag the ch₄ molecule into the appropriate bin. (activity b continued on next page) activity b (continued from previous page) 3. classify: with the gizmo, test and categorize the remaining molecules. report your findings. polar molecules nonpolar molecules did the polarity of any of these molecules surprise you? explain.

Explanation:

Polar molecules have a separation of positive and negative charges due to differences in electronegativity and molecular shape, and are affected by electric - fields. Non - polar molecules have an even distribution of charge and are not affected in the same way. For the classification in part 3, without specific molecules listed, we can't provide exact answers. But in general, molecules with symmetric shapes and equal or similar electronegativities of atoms are non - polar, while those with asymmetric shapes and significant electronegativity differences are polar.

Answer:

2.A. No, because CH4 is a non - polar molecule due to its symmetric tetrahedral shape.
2.B. Non - polar

1. Polar molecules: (To be filled based on actual testing with Gizmo, e.g., H2O)

Nonpolar molecules: (To be filled based on actual testing with Gizmo, e.g., CH4)
Did the polarity of any of these molecules surprise you? Explain: (Answer depends on individual expectations and actual test results. For example, if a molecule with a complex structure but symmetric charge distribution is found to be non - polar, it might surprise someone who expected it to be polar based on its complexity.)