6 During an investigation, several students make statements about solutions. Which statement is
NOT true?
11 A
test effect
olve in
F When sugar dissolves in water, the sugar is
evenly distributed throughout the solution.
Solutions can be classified as mixtures.
H Heating the water first causes salt to
dissolve faster.
H
J When salt is dissolved in water, parts of the
solution taste saltier than others.

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 .