Unit 2.6-2.7: Molecular and Ionic Compounds

Multiple Choice

Classify as Molecular Formula, Empirical Formula, or Both: $$SO_2$$

• Molecular

• Empirical

• Both

Multiple Choice

Classify as Molecular Formula, Empirical Formula, or Both: $$B_2H_6$$

• Molecular

• Empirical

• Both

Fill in the Blank

This is the structural form of Ethane.

What is ethane's molecular formula?

Fill in the Blank

This is the structural form of Ethane.

What is would be the best 3d model for Ethane?

-

-

Multiple Choice

What is the charge of a sulfur atom with 16 neutrons and 18 electrons?

• +2

• -2

• +18

• -18

Multiple Choice

How many electrons does $$^{79}Se_{ }^{-2}$$ have?

• 77

• 79

• 81

• -158

Fill in the Blank

Predict the Charge for the most stable ion of Aluminum

+

Fill in the Blank

Predict the Charge for the most stable ion of Fluorine

-

Multiple Select

Which of the following are ionic?

• $$N_2O$$

• $$Na_2O$$

• $$CaCl_2$$

• $$SF_4$$

Multiple Select

Which of the following are ionic?

• $$N_2O$$

• $$Na_2O$$

• $$CaCl_2$$

• $$SF_4$$

Multiple Select

Which of the following are molecular?

• $$CBr_4$$

• $$FeS$$

• $$P_4O_6$$

• $$PbF_2$$

Open Ended

Can you tell from a formula alone if a substance is ionic or molecular? Why or Why not?