A total of 22.6 kJ of heat energy is added to a 7.11 L sample of helium at 0.997 atm. The gas is allowed to expand against a fixed external pressure to a volume of 23.4 L . Calculate the work done on or by the helium gas in units of joules, J.

Astudent is trying to create a table that compares hypotheses, theories, and laws. hypothesis theory law do scientific researchers formulate it? yes yes yes does it explain why things happen? yes yes no yes yes yes is it used to make predictions? no yes yes which of the following questions would most likely fill the blank in the table? is it an intelligent guess? is it newly formulated? is it based on observations? has it been proved?

Identify the lewis acid in this balanced equation: ag+ + 2nh3 -> ag(nh3)2+a. ag+b. nh3c. ag(nh3)2+

Heat is the total potential energy of a substance that can be transferred. true false