Author Question: What is the coefficient of the permanganate ion when the following equation is balanced? MnO4- + Br- ... (Read 127 times)

cool

  • Hero Member
  • *****
  • Posts: 570
What is the coefficient of the permanganate ion when the following equation is balanced? MnO4- + Br-  Mn2+ + Br2 (acidic solution)
 
  A) 1
  B) 2
  C) 3
  D) 5
  E) 4

Question 2

What is the oxidation state of carbon in the carbonate ion?
 
  A) +4
  B) +2
  C) 0
  D) -2
  E) -4

Question 3

One significant difference between gases and liquids is that ________.
 
  A) a gas is made up of molecules
  B) a gas expands to fill its container
  C) a gas may consist of both elements and compounds
  D) gases are always mixtures
  E) All of the above answers are correct.


prumorgan

  • Sr. Member
  • ****
  • Posts: 326
Answer to Question 1

B

Answer to Question 2

A

Answer to Question 3

B



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.

Did you know?

The FDA recognizes 118 routes of administration.

Did you know?

The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."

Did you know?

Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.

Did you know?

The oldest recorded age was 122. Madame Jeanne Calment was born in France in 1875 and died in 1997. She was a vegetarian and loved olive oil, port wine, and chocolate.

For a complete list of videos, visit our video library