Problem page ammonia has been studied as an alternative "clean" fuel for internal combustion engines, since its reaction with oxygen produces only nitrogen and water vapor, and in the liquid form it is easily transported. an industrial chemist studying this reaction fills a tank with of ammonia gas and of oxygen gas at . he then raises the temperature, and when the mixture has come to equilibrium measures the amount of nitrogen gas to be . calculate the concentration equilibrium constant for the combustion of ammonia at the final temperature of the mixture. round your answer to significant digits. g

Which position represents spring in the southern hemisphere? a) b) c) d)

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Which statement correctly describes the phosphate ion, ? it is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge distributed over the entire ion. it is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge on the phosphorus atom. it is composed of one phosphorus atom and four oxygen atoms ionically bonded together, and there is a –3 charge distributed over the entire ion. it is composed of one phosphorus atom and four oxygen atoms ionically bonded together, and there is a –3 charge on the phosphorus atom.