Ammonia reacts with oxygen according to the equation 4NH3(g)+5O2(g)→4NO(g)+6H2O(g),ΔHrxn =−906 kJ

Calculate the heat (in kJ) associated with the complete reaction of 155 g of NH3. For this problem, be sure to include the correct sign for q to indicate the direction of heat flow.

Timed ! in which of these statements are protons, electrons, and neutrons correctly compared? quarks are present in protons and neutrons but not in electrons. quarks are present in protons, neutrons, and electrons. quarks are present in neutrons and electrons but not in protons. quarks are present in protons and electrons but not in neutrons.