Why does the water seem cooler in the day and warmer at night? (It's a short question so please give me a proper answer and i'll mark BRAINLIEST!!)

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 .

Achange in the number of neutrons in an atom will change an blank . when the number of protons changes in an atom, a new element will form.

The mass of a neutron is equal to the mass of a proton plus the mass of an electron. true or false false true