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Author Question: For the freezing of liquid bromine, Br2, at a given temperature and pressure, A) H is negative ... (Read 42 times)

berenicecastro

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on: Aug 27, 2018
For the freezing of liquid bromine, Br2, at a given temperature and pressure,
 
  A) H is negative and S is negative.
  B) H is negative and S is positive.
  C) H is positive and S is negative.
  D) H is positive and S is positive.

Question 2

The density of ethanol, C2H5OH, is 0.789 g/mL. How many milliliters of ethanol are needed to produce 10.0 g of CO2 according to the following chemical equation? C2H5OH(l) + 3 O2(g)  2 CO2(g) + 3 H2O(l)
 
  A) 4.12 mL
  B) 6.63 mL
  C) 13.2 mL
  D) 26.5 mL

Question 3

The acidic water of a lake (V = 4  108 L) must be neutralized with lime, CaO. It will require a minimum of ______ grams of lime to adjust the pH from 5.6 to 6.5.
 
  A) 2  104
  B) 5  104
  C) 1  105
  D) 3  104
  E) 5
Chemistry: The Central Science ¦ Brown, LeMay, Bursten ¦ 14th Edition
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jasonq

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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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berenicecastro

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Reply 2 on: Aug 27, 2018
Great answer, keep it coming :)

Sarahjh

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Reply 3 on: Yesterday
Wow, this really help

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