Given the following heats of reaction: N2 (g) + 2O2(g) à 2NO2(g) H = +67.6kJ

NO (g) + ½ O2(g) à NO2(g) H= -56.6kJ

Calculate the heat of reaction for N2(g) + O2(g) > 2NO(g)

(Give answer to 4sf)

Which is the layer underground where all empty spaces are filled with a combination of air and water ?

Which compound contain an iron with a 3+ charge

What type of interaction occurs between the r groups of valine and isoleucine in a tertiary structure? view available hint(s) what type of interaction occurs between the r groups of valine and isoleucine in a tertiary structure? salt bridge disulfide bridge hydrogen bond hydrophobic interaction