Question 7 When hydrogen chloride gas is prepared on a humid day, the gas is usually passed
through the guard tube containing calcium chloride. The role of calcium chloride taken
in the guard tube is to​

One does not belong why? ice, gold ,wood ,diamond and table salt

What are four significant sources of ghgs that come from wostem washington?

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 .