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

Author Question: Water and ethanol can be separated by heating the ethanol until it boils away from the water. What ... (Read 222 times)

sammy

  • Hero Member
  • *****
  • Posts: 818
on: Jul 29, 2018
Water and ethanol can be separated by heating the ethanol until it boils away from the water. What type of change is this?
 
  A) a physical change
  B) a chemical change
  C) a molecular change
  D) a decomposition
  E) none of the above

Question 2

A chemical change involves the formation or breaking of
 
  A) an atom.
  B) the phase of the material.
  C) a chemical bond.
  D) all of the above


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

upturnedfurball

  • Sr. Member
  • ****
  • Posts: 334
Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: A

Answer to Question 2

Answer: C


sammy

  • Hero Member
  • *****
  • Posts: 818
Reply #2 on: Jul 29, 2018
TY


upturnedfurball

  • Sr. Member
  • ****
  • Posts: 334
Reply #3 on: Jul 29, 2018
You're welcome


« previous next »
 

Did you know?

No drugs are available to relieve parathyroid disease. Parathyroid disease is caused by a parathyroid tumor, and it needs to be removed by surgery.

Did you know?

Eating carrots will improve your eyesight. Carrots are high in vitamin A (retinol), which is essential for good vision. It can also be found in milk, cheese, egg yolks, and liver.

Did you know?

For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

Did you know?

Historic treatments for rheumatoid arthritis have included gold salts, acupuncture, a diet consisting of apples or rhubarb, nutmeg, nettles, bee venom, bracelets made of copper, prayer, rest, tooth extractions, fasting, honey, vitamins, insulin, snow collected on Christmas, magnets, and electric convulsion therapy.

Did you know?

Cocaine was isolated in 1860 and first used as a local anesthetic in 1884. Its first clinical use was by Sigmund Freud to wean a patient from morphine addiction. The fictional character Sherlock Holmes was supposed to be addicted to cocaine by injection.

Plant cell water potential. Plant cell water potential.
Water and salt regulation by isosmotic, hyperosmotic, and hypoosmotic aquatic organisms. Water and salt regulation by isosmotic, hyperosmotic, and hypoosmotic aquatic organisms.
Whale in water Whale in water
Water transport in plants. Water transport in plants.
5-4 The relationship between vapor pressure and temperature—in this case for water. As the ... 5-4 The relationship between vapor pressure and temperature—in this case for water. As the ...
Water and Body Fluids Water and Body Fluids
Video: Four Giant Convection Cells oF Earth

For a complete list of videos, visit our video library