The following reactions: pb^2+ + 2l^- rightarrow PbI_2 2Ce^4+ + 2I^- rightarrow

Question

The following reactions: pb^2+ + 2l^- rightarrow PbI_2 2Ce^4+ + 2I^- rightarrow I_2 + 2Ce^3+ HOA_c + NH_3 rightarrow NH_4^+ + OAc^- are examples of unbalanced reactions redox, acid-base, and precipitation reactions, respectively acid-base reactions precipitation, acid-base, and redox reactions, respectively precipitation, redox, and acid-base reactions. respectively In the reaction N_2(g) + 3H_2(g) rightarrow 2NH_3(g), N_2 is the reducing agent the electron donor reduced oxidized two of these what mass of calcium chloride, CaCl_2, is needed to prepare 3.950 L of a 1.49 M solution? 111 g 294 g 41.9 g 5.89 g 653 g Which of the following is a strong acid? HCiO HBrO HF KOH HCIO_4

Explanation / Answer

12. E

13. A

14. E

Mol wt of CaCl2 is 111g.

1 Lit 1.49M solution = 1.49*111= 165.39g

Wt of compound in 3.95 Lit = 3.95* 165.39= 653.3g

15. E

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