A piston at a volume of 20. L holds a gas at 100 degrees Celsius. The volume changes to 15 L as the gas is cooled. What is the new temperature of the gas in the piston in degrees celsius?

Which statement justifies that hydrogen peroxide (h2o2) is a polar molecule? the o – h bond is nonpolar and the molecule is asymmetric. the o – h bond is nonpolar and the molecule is symmetric. the o – h bond is polar and the molecule is asymmetric. the o – h bond is polar and the molecule is symmetric.