What is the chemical formula of a compound named ammonium ...

[urbanoutfitters]

What is the chemical formula of a compound named ammonium sulfide?
 
  A) NH4S
  B) (NH4)2S
  C) (NH4)S2
  D) (NH4)2S3

Question 2

Which set has the same number of protons?
 
  A) Br, Br-, Br+
  B) N, O, F
  C) Na+, Mg2+, Al3+
  D) K+, Rb+, Cs+

Question 3

List three examples of pure substances and three examples of mixtures that have not been previously discussed in class.
 
  What will be an ideal response?

[lgoldst9]

Answer to Question 1

B

Answer to Question 2

A

Answer to Question 3

Anything that makes sense in your class.

[urbanoutfitters]

Thank you!

[lgoldst9]

Always glad to help...