at a temperature of 280 K, the gas in a cylinder has a volume of 20.0 liters. if the temperature of the gas decreased to 200 K, what must the volume be for the gas pressure to remain constant?

Energy is released during which phase changes? check all that apply. boiling condensing depositing freezing melting subliming

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Select the statement that describe chemical properties a. antacid tablets neutralize stomach acid b. helium is the lightest monatomic element c. water freezes at 0 celsius d. mercury is liquid at room temperature