Calculate the change internal energy (ÎE) for a system that is giving off 55.0 kJ of heat and is performing 655 J of work on the surroundings.

Reduction is a reaction which results in a in electrons and a in positive charge of the atom or ion 1) a- loss 1) b- gain 2) a-increase 2) b-decrease

What would be the original temperature of a gas that has a volume of 2.0 l and a pressure of 2.0 atm and an unknown temperature that the volume increased to 3.5 l in its pressure decreased to 1.0 atm if the final temperature is measured to be 11°c

What is the chemical formula for a compound between li and br? libr li2br libr2 libr3