Which process is not an exothermic process? a) boiling b) condensing c) deposition d) freezing

Ionic compounds are made of ions, and yet the overall charge of an ionic compound is neutral. why?

What is a metal replacement reaction

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.