Which compound has the percent composition of 15.8 Al, 28.1 S and ...

[Alygatorr01285]

Which compound has the percent composition of 15.8 Al, 28.1 S and 56.1 O?
 
  A) Al2(SO4)3
  B) Al2(SO3)3
  C) Al2S3
  D) Al2(S2O3)3

Question 2

Which solution is the most basic solution?
 
  A) a solution whose H+ = 100
  B) a solution whose OH- = 10-14
  C) a solution whose pH = 0
  D) All of the above have the same degree of basicity.

Question 3

The mass of the electrons in atoms is generally regarded as
 
  A) significant.
  B) insignificant.
  C) comparable to the mass of the nucleus.
  D) unknown.

[sultana.d]

Answer to Question 1

A

Answer to Question 2

D

Answer to Question 3

B