Aballoon was partially filled with helium gas at room temperature. it occupied 4.0 liters of volume at 700.0 mmhg atmospheric pressure. when the balloon was released, it traveled upward until it burst at 99 mmhg atmospheric pressure. (neglect any force exerted to stretch the rubber balloon.) what was the volume of the balloon when it burst? l

Astable electron arrangement for an atom is one that does not easily change. how is this arrangement arrived at? a. valence electrons are transferred or shared to create a full outer shell of electrons. b. valence electrons are discarded into space to create a full outer shell of electrons. c. protons (positive charge) pair with valence electrons (negative charge) to create a strong bond. d. outer shells with valence electrons are transferred or shared.

What is the molecular weight of copper

A5 mole sample of liquid acetone is converted to a gas at 75.0°c. if 628 j are required to raise the temperature of the liquid to the boiling point, 15.600 kj are required to evaporate the liquid, and 712 j are required to raise the final temperature to 75.0°c, what is the total energy required for the conversion?