A student designs an investigation to test the reactivity of two elements with HCI
to produce hydrogen gas. Using the periodic table as a model, which of the
following would you expect to produce the most hydrogen gas within the first
minute of the reaction?
2Cs (s) + 2HCl(aq) -- 2CsCl (aq) + H2(8)
2Al(s) + 6HCl(aq) -- AICI, (aq) + 3H2 (8)
Cs, because it has the lower lonization energy and more easily gives up its
valence electrons to participate in a reaction
Al, because it has the higher lonization energy and more readily accepts
electrons to participate in a reaction
Cs, because it has the higher lonization energy and more easily gives up its
valence electrons to participate in a reaction
Al, because it has the lower ionization energy and more readily gives up valence
electrons to participate in a reaction
Answers: 3
Chemistry, 22.06.2019 11:30, ansuaprajita1506
Voltaic cells produce a positive overall charge. what does this indicate? a. the reaction is likely to be endothermic. b. the reaction is spontaneous. c. the reaction is not likely to occur. d. the reaction is not spontaneous.
Answers: 3
Chemistry, 22.06.2019 12:20, missayers172
Achemistry student weighs out 0.306 g of citric acid (h3c6h5o7), a triprotic acid, into a 250 ml volumetric flask and dilutes to the mark with distilled water. he plans to titrate the acid with 0.1000 m naoh solution. calculate the volume of naoh solution the student will need to add to reach the final equivalence point. be sure your answer has the correct number of significant digits.
Answers: 3
Chemistry, 22.06.2019 18:10, bri9263
Consider the following reaction at equilibrium: c(s)+h2o(g)⇌co(g)+h2(g) predict whether the reaction will shift left, shift right, or remain unchanged upon each of the following disturbances. a) c is added to the reaction mixture. b) h2ois condensed and removed from the reaction mixture c) co is added to the reaction mixture d) h2 is removed from the reaction mixture.
Answers: 3
Chemistry, 22.06.2019 20:10, sarahalexa19
Suppose you mix one mole of sulfuric acid (h2so4) with 1 mole of sodium hydroxide(naoh). why does the ph of the solution remain below 7? ( explain so i can get better understanding! )
Answers: 2
A student designs an investigation to test the reactivity of two elements with HCI
to produce hydro...
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