1. If you blow up a balloon with 0.5 moles of gas, it has a volume of 11.2 L. What will the volume be if you fill it with 2.0 moles of gas?

2.Using the combined gas law: A sample of gas occupies a volume of 0.652 L at 313K and 0.90 atm. What volume will the sulfur dioxide occupy at STP?

3. Think about the previous question. With the temperatures and pressures provided, should the volume increase or decrease. Explain your reasoning.

the law of conservation of mass states that in a chemical reaction, the total mass of reactants is equal to the total mass of products. because atoms are only rearranged in a chemical reaction, there must be the same number of sodium atoms and chlorine atoms in both the reactants and products

the old alchemists made significant contributions to science even though there starting premises were off a bit. their conclusions after failure would steer them into better directions for investigation. science is no more than close observation and the initial mistakes result in rethinking and retrying experiments.

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