Back to quiz

6. How many orbitals with l = 2 can exist in a shell?

  • 8
  • 2
  • 5
  • 4

7. The atomic masses of 2 members of a triad are 28 and 119. What is the identity of the third member?

  • Germanium
  • Tungsten
  • Tantalum
  • Arsenic

8. Which of the following is a characteristic of bonds between metals and nonmetals?

  • Directionality
  • An electron sea
  • Bonds which are broken in water
  • Bonds which are broken on melting

9. A substance with a fixed composition that is chemically decomposable is called a/an:

  • Compound
  • Solution
  • Element
  • Atom

10. Which of the following bonds is the most polar?

  • H-O
  • H-S
  • Se-Se
  • Se-H

11. What is the mass percentage of magnesium in MgCl2?

  • 25%
  • 33%
  • 40%
  • 37%

12. Which of the following sets of coefficients correctly balance the equation shown? wBa3N2 + xH2O → yBa(OH)2 + zNH3

  • 1 6 3 1
  • 1 6 3 2
  • 1 3 3 1
  • 1 3 3 2

13. The bonding in BaCl2 is best described as:

  • Pure Ionic
  • Pure Covalent
  • Ionic with covalent character
  • Polar Covalent

14. What is the formula of the compound phosphorus forms with hydrogen?

  • PH3
  • P3H
  • PH5
  • PH