Problem 19-22: Predict if each of the following reactions will happen (A) or wil

Question

Problem 19-22: Predict if each of the following reactions will happen (A) or will not happen (B) by using activity series. 19. Zn(s) + Cucb(aq) ZnCl; (aq) + Cu (s) 20, Ag (s) + NaNC)(aq) AgNO3(aq) + Na(s) 21 22. HsO + 2HC1 HgCla (aq) + H2(x) Ca (s) + 2 HO (I) Ca(OH)2 + H2 (g) End of Scantron Section 23. What is the oxidation state of the underlined element in cach of the following? Fill your answer above the line (d) NaH (h) K:Q2 (a) P4 (b)A103- (c) Mnoa.- (e) HQ (g)C120- 24 Complete and balance the following chemical equations, writing them as total ionic equations and as net ionic equations; indicate any precipitate by (6) and any gas by (g). a b. c. d. Na2SO4(aq) + Al(OH)3(s) + Na2CO3(aq) + NH3-H20 (aq) + Ba(NO3)2(aq) HCl(aq) HCl (aq) HC2H3O2(aq) 25 Balance the following oxidation and reduction reactions by using half reaction method. a. Mno.. (aq) + SO32-(aq) SO42. (agl t Md.

Explanation / Answer

Q19

Zn is more active than Cu, therefore, expect Cu(s) formation

therefore this does happen "A"

Q20

Ag is less active than Na, then, this will NOT occur

"B"

Q21

Ca is much more reactive than H2, therefore

this will occur

2A"

Q22

Hg liquid is less reactive than H+

therefore , this is not likely to occur

then, choose "B"

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