Diameter of the Balloon Before Heat
After Heat
6 centimeters 10 centimeters
Which conclusion is supported by the evidence?
A. Air expands when heated.
B. Air is warmer when heated.
C. The balloon will pop when heated.
D. The balloon contracts when heated.

The balanced chemical equation for this lab is: 3cucl2(aq) + 2al(s) 3cu(s) + 2alcl3(aq) if 10.5 g copper chloride react with 12.4 g aluminum, what is the limiting reactant?

Harvey kept a balloon with a volume of 348 milliliters at 25.0˚c inside a freezer for a night.  when he took it out, its new volume was 322 milliliters, but its pressure was the same.  if the final temperature of the balloon is the same as the freezer’s, what is the temperature of the freezer? the temperature of the freezer is  kelvins.

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