When the hydrogen chloride concentration doubles, the number of collisions between the reactants blank, which causes the rate of the forward reaction to blank

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Since there is the same amount of agn03 in both silver chloride and silver nitrate they produce the same amount of moles. therefore silver chloride produces the same amount of silver nitrate, so your answer is 15.0 moles of silver nitrate. i hope this !

No. an alpha particle is a pair of protons and a pair of neutrons, i.e. a helium