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What is the effect of the flashes of lightning during a
thunderstorm ?
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The oxygen and nitrogen present in the air combine together
to from oxides of nitrogen the presence of flashes of lightning
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It also forms ozone(O3) from molecules of oxygen(O2)
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What is positive testing in relation to chemistry? For example, the sentence reads "Sample solutions are solutions known to contain one of each of the following ions, silver ion, Ag+(aq), barium ion, Ba2+(aq), and iron (III) ion, Fe3+(aq). Testing solutions are the solutions containing a polyatomic ion that can react with one of the metal ions to give a positive test." I am then asked to define what a "positive test" is. I am currently a student who is pretty new to chemistry, please try and make your answer as simply as possible. Thanks for the help.
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