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    Solutions to General Chemistry Questions

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    Which ion(s) is/are spectator ions in the formation of a precipitate of AgBr via combining aqueous solutions of CoBr2 and AgNO3?
    a. Co2+ and Ag+
    b. Co2+ and NO3-
    c. NO3- and Br-
    d. NO3-
    e. Br-

    Which of the following is an exchange reaction?
    a. 2SO(g) + O2(g) ---> 2SO2(g)
    b. CaCO3(s) ---> CaO(s) + CO2(g)
    c. Fe(s) + Ni(NO3)2(aq) ---> Fe(NO3)2(aq) + Ni(s)
    d. HCl(aq) + NaOH(aq) ---> H2O(l) + NaCl(aq)
    e. CH4(g) + 2O2(g) ---> CO2(g) + 2H2O(l)

    Which of the following are strong acids?

    HI
    HNO3
    HF
    HBr

    a. 2, 3, & 4
    b. 1, 2, & 4
    c. 1, 2, 3, & 4
    d. 3 & 4
    e. 1, 3, & 4

    Which hydroxides are weak bases?

    Sr(OH)2
    KOH
    NaOH
    Ba(OH)2

    a. 1, 2, 3, & 4
    b. 2 & 4
    c. 2, 3, & 4
    d. 2 & 3
    e. none of these is a weak base

    Consider the following reactions:
    AgNO3(aq) + Zn(s) ---> Ag(s) +Zn(NO3)2

    Co(NO3)2(aq) + Zn(s) ---> no reaction

    AgNO3 + Co(s) ---> Co(NO3)2(aq) + Ag(s)

    Which is the correct order of increasing (from least to most reactive) activity for these metals?

    a. Co < Zn < Ag
    b. Co < Ag < Zn
    c. Ag < Co < Zn
    d. Zn < Co < Ag
    e. Ag < Zn < Co

    © BrainMass Inc. brainmass.com October 9, 2019, 5:06 pm ad1c9bdddf
    https://brainmass.com/chemistry/acids-and-bases/solutions-to-general-chemistry-questions-47884

    Solution Summary

    This solution involves questions related to general chemistry concepts such as acids, bases, ions, precipitates, and reactive metals

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