The enthalpy of formation of NH3 is -46kj/mol. Calculate the enthalpy change for the reaction reaction 2NH3(g) to form N2(g) + 3H2(g)

Water is important for the of cells. a: size, shape, and temperature b: temperature, color, and odor c: color, odor, and size d: shape, temperature, and color

What are the 4 phases of matter in order of increasing engery content?

Which of these conditions most likely produces an unstable isotope?