Which statement about nuclear binding energy is true? a. it is the attraction of the positive nucleus to negative electrons. b. it must be overcome to break a nucleus apart into protons and neutrons. c. it is the energy that holds atoms together in a molecule. d. it is created wh

Nitric oxide (no) can be formed from nitrogen, hydrogen and oxygen in two steps. in the first step, nitrogen and hydrogen react to form ammonia: n2(g) + 2 h_2(g) rightarrow 2 nh_3 (g) delta h = -92. kj in the second step, ammonia and oxygen react to form nitric oxide and water: 4 nh_3(g) + 5 o_2(g) rightarrow 4no(g) + 6 h_2o(g) delta h = -905. kj calculate the net change in enthalpy for the formation of one mole of nitric oxide from nitrogen, hydrogen and oxygen from these reactions. round your answer to the nearest .

Which substance is a steroid? cholesterol fatty acid monosaccharide trans fat

Complete each row of the table below by filling in the missing prefix or missing exponent.