Be sure to answer all parts. a sample of nitrogen gas expands in volume from 1.4 to 5.8 l at constant temperature. calculate the work done in joules if the gas expands (a) against a vacuum: j (b) against a constant pressure of 0.73 atm: × 10 j enter your answer in scientific notation. (c) against a constant pressure of 4.1 atm: × 10 j enter your answer in scientific notation.

What is the number of moles of chemical units represented by 9.03x10^24? and how do i show work? (dumb it down )

Essay-alternative energy sources research sources of energy that are being developed. write a report of 350-400 words discussing the information you learned concerning the development of various energy sources and the impact that you think they will have on your life. include sources cited at the end of your report using the mla format. follow the rubric guidelines. note that wikipedia is not an appropriate resource for a research paper. worth 99

Write a hypothesis that answers the lesson question, “while observing a chemical reaction, how can you tell which reactant is limiting? ” hypothesis: if a substance is the limiting reactant, then . . because . .