specimens of copper (II) oxide produced by various method were reduced in a stream of carbon(II) oxide and on analysis gave the following results 1.60g of copper oxide A gave 1.25g of copper 2.05g of copper oxide B gave 1 .63g of copper 2.40g of copper oxide C give 1.91g of copper​

Word equation for k(s) +h2o(l) yield koh (aq) + h2

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 .

Scuba divers use tanks of compressed air to them breathe. gases can be compressed because?