Which of the following aqueous solutions will have the lowest freezing point? 0.10 m sodium carbonate, Na2CO3 a. 0.25 m sodium nitrate, NaNO; 0.20 m ethanol, CH;CH;OH d. 0.15 m calcium chloride, CaCl2 0.30 m potassium chloride, KCI b. c. e. Indicate which of the following reactions results in a positive ASays. a. 2 Na(s) +Cl, (g) = NaCl(s) b. Zn(s)+2 HCI(aq) 5 ZnCl, (aq) +H, (g) 4 Fe(s) + 3 0, (g) 5 2 Fe,O,(s) d. 2 H, (g)+O,(g) 5 2 H,O(g) Ba(NO,),(aq) + Na, SO, (aq) 5 BaSO,(s) + 2 NaNO, (aq) c. e.
Which of the following aqueous solutions will have the lowest freezing point? 0.10 m sodium carbonate, Na2CO3 a. 0.25 m sodium nitrate, NaNO; 0.20 m ethanol, CH;CH;OH d. 0.15 m calcium chloride, CaCl2 0.30 m potassium chloride, KCI b. c. e. Indicate which of the following reactions results in a positive ASays. a. 2 Na(s) +Cl, (g) = NaCl(s) b. Zn(s)+2 HCI(aq) 5 ZnCl, (aq) +H, (g) 4 Fe(s) + 3 0, (g) 5 2 Fe,O,(s) d. 2 H, (g)+O,(g) 5 2 H,O(g) Ba(NO,),(aq) + Na, SO, (aq) 5 BaSO,(s) + 2 NaNO, (aq) c. e.
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Transcribed Image Text:Which of the following aqueous solutions will have the lowest freezing point?
0.10 m sodium carbonate, Na2CO3
a.
0.25 m sodium nitrate, NaNO;
0.20 m ethanol, CH;CH;OH
d. 0.15 m calcium chloride, CaCl2
0.30 m potassium chloride, KCI
b.
c.
e.
Indicate which of the following reactions results in a positive ASays.
a. 2 Na(s) +Cl, (g) = NaCl(s)
b. Zn(s)+2 HCI(aq) 5 ZnCl, (aq) +H, (g)
4 Fe(s) + 3 0, (g) 5 2 Fe,O,(s)
d. 2 H, (g)+O,(g) 5 2 H,O(g)
Ba(NO,),(aq) + Na, SO, (aq) 5 BaSO,(s) + 2 NaNO, (aq)
c.
e.
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