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Author Question: A student working in the laboratory needs 200.0 g of a liquid chemical whose density is 0.690 g/cm3. ... (Read 10 times)

craiczarry

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on: Aug 27, 2018
A student working in the laboratory needs 200.0 g of a liquid chemical whose density is 0.690 g/cm3. What volume of this liquid should he measure?
 
  A) 138 cm3
  B) 69.0 cm3
  C) 200. cm3
  D) 290 cm3

Question 2

Which of the following equations is not a single replacement reaction?
 
  A) H2SO4 + Mg(OH)2  H2O + MgSO4
  B) Zn + HCl  H2 + ZnCl2
  C) Al + Fe2O3  Al2O3 + Fe
  D) Na + H2O  NaOH + H2

Question 3

Which of the following is not a substitution reaction?
 
  A) NaOH + HCl NaCl + H2O
  B) AgNO3 + NaCl  NaNO3 + AgCl
  C) 2Fe + O2  2FeO
  D) CH3OH + HCl  CH3Cl + H2O

Question 4

A train robber in a western movie steals two gold ingots, each of which has a volume of 1000. cm3. The density of gold is 19.3 g/cm3. What is the mass of the two ingots?
 
  A) 38.6 g
  B) 19,300 g
  C) 38,600 g
  D) 104 g


poopface

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

D

Answer to Question 2

A

Answer to Question 3

C

Answer to Question 4

C


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