A community consists of all the organisms in an ecosystem that belong to the same species. true or false

Measurements that have similar values are: a. usually accurate b. sometimes accurate c. always accurate d. never accurate

Nitric acid can be formed in two steps from the atmospheric gases nitrogen and oxygen, plus hydrogen prepared by reforming natural gas. in the first step, nitrogen and hydrogen react to form ammonia: (g) (g) (g) in the second step, ammonia and oxygen react to form nitric acid and water: (g) (g) (g) (g) calculate the net change in enthalpy for the formation of one mole of nitric acid from nitrogen, hydrogen and oxygen from these reactions. round your answer to the nearest .

Which samples do the atoms have the least kinetic energy