Select the answer which shows the correct order, slowest to fastest, of the relative rate of diffusion of the gases.
kr, ar, ne, n
n, ne, ar, kr
kr, ne, n, ar
ne, ar, n, kr

Describe the difference between a. a hypothesis and a theory and b. an observation and an experiment.

Which of the following nuclei would be the least stable a 2 protons, 2 neutrons b 1 proton 1 neutron c 1 proton 3 neutrons d 1 proton 2 neutrons

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