This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Which of the following is a mixture? A) air B) gold C) salt D) iron E) ... (Read 76 times)

ss2343

  • Hero Member
  • *****
  • Posts: 548
on: Jul 29, 2018
Which of the following is a mixture?
 
  A) air
  B) gold
  C) salt
  D) iron
  E) helium

Question 2

The boiling point of 1,4-butanediol is 230C. Would you expect this compound to be soluble or insoluble in room-temperature water?
 
  A) Since there are no polar areas on this molecule, it is insoluble in water at room temperature.
  B) A high boiling point means that the substance interacts with itself quite strongly. Therefore this molecule is not soluble in water.
  C) Since there are polar areas on this molecule, it is insoluble in water at room temperature.
  D) Water would be attracted to both ends of 1,4 butanediol, and it is infinitely soluble in water.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

scottmt

  • Sr. Member
  • ****
  • Posts: 322
Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: A

Answer to Question 2

Answer: D


ss2343

  • Member
  • Posts: 548
Reply 2 on: Jul 29, 2018
Excellent

meow1234

  • Member
  • Posts: 333
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

Immunoglobulin injections may give short-term protection against, or reduce severity of certain diseases. They help people who have an inherited problem making their own antibodies, or those who are having certain types of cancer treatments.

Did you know?

Medications that are definitely not safe to take when breastfeeding include radioactive drugs, antimetabolites, some cancer (chemotherapy) agents, bromocriptine, ergotamine, methotrexate, and cyclosporine.

Did you know?

According to research, pregnant women tend to eat more if carrying a baby boy. Male fetuses may secrete a chemical that stimulates their mothers to step up her energy intake.

Did you know?

GI conditions that will keep you out of the U.S. armed services include ulcers, varices, fistulas, esophagitis, gastritis, congenital abnormalities, inflammatory bowel disease, enteritis, colitis, proctitis, duodenal diverticula, malabsorption syndromes, hepatitis, cirrhosis, cysts, abscesses, pancreatitis, polyps, certain hemorrhoids, splenomegaly, hernias, recent abdominal surgery, GI bypass or stomach stapling, and artificial GI openings.

Did you know?

Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.

Banded iron formations Banded iron formations
iron iron
This is gold!!!! This is gold!!!!
The downward movement of the piston draws the air–fuel mixture into the cylinder through the ... The downward movement of the piston draws the air–fuel mixture into the cylinder through the ...
Iron-deficient red blood cells. Iron-deficient red blood cells.
Determine the mass percent of Fe3+ in a 0.546g sample of iron ore, if 22.40 mL of a 0.1000 M ... Determine the mass percent of Fe3+ in a 0.546g sample of iron ore, if 22.40 mL of a 0.1000 M ...
Video: Mechanisms of capillary exchange (transcytosis & bulk flow)

For a complete list of videos, visit our video library