This topic contains a solution. Click here to go to the answer

Author Question: Optical brighteners are often added to A) detergents. B) soaps. C) cosmetics. D) They are ... (Read 72 times)

gbarreiro

  • Hero Member
  • *****
  • Posts: 566
Optical brighteners are often added to
 
  A) detergents.
  B) soaps.
  C) cosmetics.
  D) They are added to all of the above.

Question 2

Burning 1.000 mol of methane in oxygen to form carbon dioxide and water produces 803 kJ of energy. How much energy is produced when 4.000 mol of methane is burned?
 
  A) 358.0 kJ
  B) 1606 kJ
  C) 1205 kJ
  D) 3212 kJ



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Pamela.irrgang@yahoo.com

  • Sr. Member
  • ****
  • Posts: 323
Answer to Question 1

D

Answer to Question 2

D





 

Did you know?

Nearly all drugs pass into human breast milk. How often a drug is taken influences the amount of drug that will pass into the milk. Medications taken 30 to 60 minutes before breastfeeding are likely to be at peak blood levels when the baby is nursing.

Did you know?

A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.

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.

Did you know?

It is difficult to obtain enough calcium without consuming milk or other dairy foods.

Did you know?

In 2006, a generic antinausea drug named ondansetron was approved. It is used to stop nausea and vomiting associated with surgery, chemotherapy, and radiation therapy.

For a complete list of videos, visit our video library