The soaps, shampoos, and detergents in addition to baking soda and washing soda were diluted prior to you using them in the laboratory. Why was it necessary to dilute these substances prior to determining their pH in the laboratory?

In the reaction between a crushed antacid tablet and vinegar what gas is emitted

Acontrol during an experiment. might change remains constant does not exist does change

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 .