« previous next »

Author Question: A student working in the laboratory needs 200.0 g of a liquid chemical whose density is 0.690 g/cm3. ... (Read 27 times)

craiczarry

  • Hero Member
  • *****
  • Posts: 527
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

  • Sr. Member
  • ****
  • Posts: 339
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


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

On average, the stomach produces 2 L of hydrochloric acid per day.

Did you know?

In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.

Did you know?

When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.

Did you know?

Medication errors are more common among seriously ill patients than with those with minor conditions.

Did you know?

Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.

Nursing student will find it funny Nursing student will find it funny
Laboratory mice demonstrate that genetic differences can have profound effects on the propensity to Laboratory mice demonstrate that genetic differences can have profound effects on the propensity to
The chemical structure of mescaline, derived from the peyote cactus. The chemical structure of mescaline, derived from the peyote cactus.
The more air and fuel that can be packed in a cylinder, the greater the density of the air–fuel ... The more air and fuel that can be packed in a cylinder, the greater the density of the air–fuel ...
Energy flow and chemical cycling Energy flow and chemical cycling
Physics - Density and Pressure Physics - Density and Pressure
Video: Supine Position

For a complete list of videos, visit our video library