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Author Question: Which of the following is insoluble in water at 25 C? A) Mg3(PO4)2 B) Na2S C) (NH4)2CO3 D) ... (Read 34 times)

melly21297

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on: Aug 27, 2018
Which of the following is insoluble in water at 25 C?
 
  A) Mg3(PO4)2
  B) Na2S
  C) (NH4)2CO3
  D) Ca(OH)2
  E) Ba(C2H3O2)2

Question 2

Boric acid condenses to form tetraboric acid according to the equation ________.
 
  A) 4H3BO3 (s)  2H2B2O7 (s) + 3H2O (g)
  B) 2H3BO3 (s)  HB2O2 (s) + 4H2O (g)
  C) 4H3BO3 (s)  HB4O8 (s) + 4H2O (g)
  D) 2H3BO3 (s)  H2B4O7 (s) + 3H2O (g)
  E) 4H3BO3 (s)  H2B4O7 (s) + 5H2O (g)

Question 3

How many total electrons are in the Li+ ion?
 
  A) 2
  B) 3
  C) 4
  D) 7
  E) 8

Question 4

Crystalline solids differ from amorphous solids in that crystalline solids have ________.
 
  A) appreciable intermolecular attractive forces
  B) a long-range repeating pattern of atoms, molecules, or ions
  C) atoms, molecules, or ions that are close together
  D) much larger atoms, molecules, or ions
  E) no orderly structure
Chemistry: The Central Science ¦ Brown, LeMay, Bursten ¦ 14th Edition
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6ana001

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Reply #1 on: Aug 27, 2018
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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melly21297

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Reply 2 on: Aug 27, 2018
:D TYSM

xiazhe

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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