Someone please help It’s due today. how has our understanding of mechanics led to the implementation of tsunami warning systems in vulnerable regions ? In your answer be sure to describe how scientists determine wave speed, direction, time of impact and potential wave height.

Which other elements contain the same number of outer electrons as sodium

Provide a stepwise curved arrow mechanism that fully explains the outcome of the reaction shown below. oh нао* heat он

For the reaction shown, calculate how many moles of no2 form when each of the following completely reacts. 2n2o5(g)→4no2(g)+o2(g) part a 1.0 mol n2o5 express your answer using two significant figures. nothing mol m o l request answer part b 5.4 mol n2o5 express your answer using two significant figures.