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Author Question: Which one of the following molecular formulas is also an empirical formula? A) C6H6O2 B) C2H6SO ... (Read 126 times)

Evvie72

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on: Aug 27, 2018
Which one of the following molecular formulas is also an empirical formula?
 
  A) C6H6O2
  B) C2H6SO
  C) H2O2
  D) H2P4O6
  E) C6H6

Question 2

For which one of the following equations is Hrxn equal to Hf for the product?
 
  A) Xe (g) + 2F2 (g)  XeF4 (g)
  B) CH4 (g) + 2Cl2 (g)  CH2Cl2 (l) + 2HCl (g)
  C) N2 (g) + O3 (g)  N2O3 (g)
  D) 2CO (g) + O2 (g)  2CO2 (g)
  E) C (diamond) + O2 (g)  CO2 (g)

Question 3

Which of the following statements about LD50 is NOT correct?
 
  A) The LD50 for a substance is the dose that will kill 50 of test subjects.
  B) A substance with a low LD50 is more toxic than a substance with a high LD50.
  C) The LD50 value for a mouse will be the same as the LD50 value for a human.
  D) The LD50 value will change, depending upon how the substance is administered.
Chemistry: The Central Science ¦ Brown, LeMay, Bursten ¦ 14th Edition
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Expo

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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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Evvie72

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Reply #2 on: Aug 27, 2018
Thank you!


Expo

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Reply #3 on: Aug 27, 2018
Always glad to help...


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