· A 8.0-g piece of iron absorbs 1000 joules of heat energy, and its temperature changes from 25°C to 75°C. Calculate the specific heat capacity of iron. A. 2.5 J/gº C
B. 5.4 J/gº C
C. 1.3 J/g° C
D 3.1 Jg° C​

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.