Determine the volume of H2S (at 375 K and 1.20 atm) needed to ...

[penguins]

Determine the volume of H2S (at 375 K and 1.20 atm) needed to produce 55.0 g of S. Assume that there is excess SO2 present.
 
  2 H2S(g) + SO2(g)  3 S(s) + 2 H2O(g)
 
  A) 44.0 L
  B) 29.3 L
  C) 22.7 L
  D) 34.1 L
  E) 66.0 L

Question 2

How many electrons does the Al3+ ion possess?
 
  A) 16
  B) 10
  C) 6
  D) 0
  E) 13

Question 3

How can one compound contain both ionic and covalent bonds? Give an example.
 
  What will be an ideal response?

[mariahkathleeen]

Answer to Question 1

B

Answer to Question 2

B

Answer to Question 3

An ionic compound that contains a polyatomic ion, such as NaNO3, has both ionic bonds (that hold the sodium and nitrate ions together) as well as covalent bonds (that hold the atoms within the nitrate ion together).