A scientist measures the standard enthalpy change for this reaction to be -146.7 kJ/mol. NH NO3(aq)-N20(g) + 2 H2O(1) Based on this value and the standard formation enthalpies for the other substances, the standard formation enthalpy of N2O(g) is kJ/mol.​

8) warming your hands by a fire is an example if which heat transfer? a. conduction b. convection c. radiation d. none of these

How many moles in .5g of sodium bromide?

Asolution of naoh has a concentration of 25.00% by mass. what mass of naoh is present in 0.250 g of this solution? use the periodic table in the toolbar if needed. 0.0625 g what mass of naoh must be added to the solution to increase the concentration to 30.00% by mass? g