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Author Question: Which of the following is not a heterogeneous mixture? A. carbonated beverage B. pizza C. air ... (Read 22 times)

yoooooman

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on: Aug 27, 2018
Which of the following is not a heterogeneous mixture?
 
  A. carbonated beverage
  B. pizza
  C. air
  D. oil and vinegar

Question 2

Lead ions can be precipitated from aqueous solutions by the addition of aqueous iodide:
 
  Pb2+ (aq) + 2I- (aq)  PbI2 (s)
 
  Lead iodide is virtually insoluble in water so that the reaction appears to go to completion. How many milliliters of 3.550 M HI(aq) must be added to a solution containing 0.600 mol of Pb(NO3)2 (aq) to completely precipitate the lead?
  A) 2.96  10-3
  B) 338
  C) 169
  D) 0.169
  E) 0.338

Question 3

Which of the following would have a density of 1.21 g/L at 7.0C and 0.987 atm?
 
  A) Ar
  B) N2
  C) Ne
  D) O2


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wshriver

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Reply #1 on: Aug 27, 2018
Answer to Question 1

C

Answer to Question 2

B

Answer to Question 3

B


yoooooman

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Reply #2 on: Aug 27, 2018
Thanks


wshriver

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Reply #3 on: Aug 27, 2018
Welcome :)


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