Given the reaction: mg(s) 2 agno3(> mg(no3)2(aq) 2 ag(s) which type of reaction is represented? (1) single replacement (3) synthesis (2) double replacement (4) decomposition

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If a gas has an initial pressure of 101kpa and a volume of 10l, then it expands to a volume of 20l, what is the new pressure?

Calculate the ph at the equivalence point for the titration of a solution containing 150.0 mg of ethylamine (c2h5nh2) with 0.1000 m hcl solution. the volume of the solution at the equivalence point is 250.0 ml. kb forethylamine is 4.7 × 10−4 .