A few minerals are common but most are

Drag each label to the correct location on the chart. classify each reaction as endothermic or exothermic.

Chemistry worksheet - i am not sure what they are asking for exactly?

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.