Avery flexible helium-filled balloon is released from the ground into the air at 20. ∘c. the initial volume of the balloon is 5.00 l, and the pressure is 760. mmhg. the balloon ascends to an altitude of 20 km, where the pressure is 76.0 mmhg and the temperature is −50. ∘c. what is the new volume, v2, of the balloon in liters, assuming it doesn't break or leak?

Which of the following is not a good technique for managing used oil? a) have specific, labeled catch pans available for technicians who are collecting oil b) spills in your shop and any releases on pavement or outside should be poured down a drain c) do not use oil containers for antifreeze or other non-similar fluids d) be prepared for oil spills with the proper absorbents

The tilt of the earth's axis of rotation is responsible for the a) ocean's tides. b) size of the moon. c) brightness of stars. d) earth’s seasons.

What type of energy do chemical bonds have? what type of energy is it converted to during chemical reactions? question 15 options: chemical bonds have kinetic energy, which is converted to potential energy during chemical reactions. chemical bonds have electric energy, which is converted to potential energy during chemical reactions. chemical bonds have heat energy, which is converted to kinetic energy during chemical reactions. chemical bonds have potential energy, which is converted to heat energy during chemical reactions.