Why mendeleev might have grouped lithium (li), sodium (na), potassium (k), rubidium (rb), and cesium (cs) together ?

An empty fuel tank can still contain and therefore can be even more dangerous than one full of liquid fuel.

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

Use the half-reactions of the reaction au(oh)3 + hi -> au +i2 +h2o to answer the questions