Why is it important to clean up any spills immediately

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1) Why is it important to clean up any spills immediately, wash hands frequently, and wash glassware thoroughly when working with crystal violet solutions? a) Cyrstal violet is a dye that stains skin and glassware. b) Crystal violet is a strong acid. c) Crystal violet is a strong base. d) Crystal violet solutions extremely flammable. 2) The rate law for the decomposition of N2O5 is: Rate = k[N2O5]. Which of the following graphs should be linear? Answer a) Rate vs. [N2O5] b) log (1/[N2O5]) vs. time c) [N2O5] vs. time d) ln[N2O5] vs. time e) 1/[N2O5] vs. time 3) The rate law for a reaction is: Rate = k[A][B]2. Which of the following will cause the value of the rate constant, k, to change? Answer a) Changing the initial concentration of A or B b) Changing the reaction temperature c) Changing the concentration or the temperature d) Nothing will change the value of k because it is a constant 4) If the half-life of a first-order decomposition reaction is 24.2 minutes, how long will it take for 10.0 moles of the reactant to decompose so that only 2.5 mol remains? Answer a) 24.2 minutes b) 35.1 minutes c) 48.4 minutes d) 18.2 minutes

Reference no: EM13154921

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