Pick an element and tell me the following:
- the name of the element, including an explanation for the origin of its name if that origin is known
- average atomic mass and atomic number for the element
- the number of valence electrons in a neutral atom of the element
- a description of where the element is commonly found in nature
- What group is it apart of?
- Who discovered it?

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 .

How heavy is thanos? a) 3000 lbs b) all of it c) the price of tea in china d) heavy enough

Melissa is interested in her family tree and how her family has changed over its many generations. melissa probably more closely resembles