1e. Which of the following compounds will produce a basic solution when dissolve

Question

1e. Which of the following compounds will produce a basic solution when dissolved in water 11. Write a balanced net ionic equation for the reaction of sqaeous solutions of baking soda (NalICOs) and acetic acid e. Nal ICO)(aq) + H-(aq) H,0)(s) + Na.(aq) e. HC)-(aq) + H+(aq) H2O Odaq) 12. Which equation best equation best represents the net ionic reaction that occurs when an aqueous solution of barium iodide is mixed with an aqueous solution of lithium sulfate? a. 2H+(aq) + 2r(aq) 2HI(g) b. Ba2 (ap)+ so, (a) Baso d. Bal2 (aq) + Li2SOe(aq) BaSO4(s)+ 2Lil(ag) e. No net reaction occurs 13. In the following reaction, which species is oxidized? 3 K2S(s) + 8H+(aq) + 2N03-(aq) 6K+(aq) + 3S(s) + 2N0E) + 4H20 14. Which species in the reaction below undergoes reduction? H2O(g) + CO(g) H2(g) + CO2(g) a. H2O b.CO d.co e.None e. None 15. Which species is reduced in the reaction below? raq) + ClO-(aq)-10(aq) + C(aq) mmanuel Aouad, Spring 2016

Explanation / Answer

10 ) a ) answer : CaO

explantion: CaO + H2O ------------------> Ca(OH)2

11) answer : e)

12) answer : b)

13 ) answer : b ) K2S

reason : S-2 ---------------> S + 2e- . it is oxidation

14 ) a) H2O

reason : H2O --------------> H2

               -1                         0    

it is oxidation

15) c ) Cl-

reason : Cl+ -------------------> Cl-

              +1                              -1

reduction

21) b) O2

22 ) e ) 8.9 g

concentration = [H+] = 10^-pH = 10^-2.15

moalrity = (mass / molar mass ) x 1/ V

mass = 10^-2.15 x 63 x 20

mass = 8.9g

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