When nitrogen gas is cooled to nearly negative 200 c it turns in to a liquid. as it goes from a gas to a liquid at this incredibly low temperature change takes place. a) a physical b) a chemical c) both d) neither

What is the ima of the 1 st class lever in the graphic given? 2 3 0.5

Which element would mostly likely have an electron affinity measuring closest to zero

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