Where is most of earth's liquid water ? what must be done so humans can drink it ?

Consider the elements bromine and chlorine; which elements has a larger ionic radius ?

Consider this initial-rate data at a certain temperature for the reaction described by

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.