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Modern weaponry has increased the number of deaths in wars and violent conflicts.
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Which of the following has wavelength longer than the wavelength of viable light? a) x rays b) gamma rays c) radios waves d) ultraviolet waves
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Areaction in which products can react to re-form reactants is
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Given the following at 25c calculate delta hf for hcn (g) at 25c. 2nh3 (g) +3o2 (g) + 2ch4 (g) > 2hcn (g) + 6h2o (g) delta h rxn= -870.8 kj. delta hf=-80.3 kj/mol for nh3 (g), -74.6 kj/mol for ch4, and -241.8 kj/mol for h2o (g)
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Copper (II) nitrate and sulfuric acid react to form copper (II) sulfate and nitric acid. If 3.27 mol...
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