Which of the following experiments best describes an investigation that measures the effect temperature has on the volume
of a gas?
A. Measure the volume of a balloon filled with room temperature air. Place the balloon in a freezer for an hour and then measure its
volume again.
B. Stretch a balloon over the top of a beaker filled with baking soda and vinegar and observe how the balloon changes volume.
C. Inflate one balloon to a large volume and another balloon to a small volume. Measure the temperature of the air released from
both balloons.
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D. Measure the pressure of the air in a tire on a cold day, a warm day, and a hot day.

For part 1, describe the changes in the colors of the well, if any, as you go from well 1 to well 9—that is, as you go from the well with the least copper(ii) nitrate to the well with the most copper(ii) nitrate. which wells had the most distinct precipitate? for part 2, describe the changes in the colors of the well, if any, as you go from well 1 to well 9—that is, as you go from the well with the least iron(ii) sulfate to the well with the most iron(ii) sulfate. which wells had the most distinct precipitate? for part 3, describe the changes in the colors of the well, if any, as you go from well 1 to well 9—that is, as you go from the well with the least iron(iii) nitrate to the well with the most iron(iii) nitrate. which wells had the most distinct precipitate?