2. A helium air balloon has a volume of 20 L when it's released from sea level where the pressure is 200 kPa. What will be the hot air balloon's volume when it reaches an altitude
where the pressure is 230 kPa? Write the formula first then show your math!
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What is a main difference between a mixture and a pure substance? a mixture is only a liquid, but a pure substance can be in any state.a mixture looks the same throughout, but a pure substance does not.1 a mixture can vary in composition, but a pure substance has a set composlo a mixture can be made up of a single compound, but a pure substance car