U6 Fall Recap

Multiple Choice

What is the ionic charge of aluminum (Al)?

• +2
• -3
• +1
• +3

Multiple Choice

Which ion does nitrogen form?

• N⁻

• N²⁻

• N³⁻

• N⁴⁻

Multiple Choice

Which metal ALWAYS forms +1?

• Ag

• Zn

• Cd

• Al

Multiple Choice

Which substance forms a cation?

• Sodium (Na)

• Chlorine (Cl)

• Oxygen (O)

• Nitrogen (N)

Multiple Choice

When oxygen forms an ion, it will ____ electrons.

• lose 2

• gain 1

• gain 2

• lose 1

Match

Match the following

• potassium ion

• chloride ion

• magnesium ion

• sulfide ion

• aluminum ion

+1 charge

-1 charge

+2 charge

-2 charge

+3 charge

• +1 charge

• -1 charge

• +2 charge

• -2 charge

• +3 charge

Multiple Choice

Predict the formula for the compound formed between lead (IV) ions and oxide ions.

• $$PbO$$

• $$Pb_2O$$

• $$PbO_2$$

• $$Pb_2O_3$$

Multiple Choice

Write the formula for the ionic compound formed between aluminum and sulfate.

• $$Al_2(SO_4)_3$$

• $$AlSO_4$$

• $$Al_3(SO_4)_2$$

• $$Al_2SO_4$$

Multiple Choice

Sodium (+1) and oxygen (–2). Which formula is correct?

• NaO

• Na₂O

• NaO₂

• Na₂O₂

Multiple Choice

Magnesium (+2) bonds with chlorine (–1). What ratio balances the charges?

• 1:1

• 1:2

• 2:1

• 2:2

Multiple Choice

Correct chemical formula for Calcium + Hydroxide

• CaOH

• Ca(OH)₂

• Ca₂OH

• CaO₂H₂

Multiple Choice

Choose the correct chemical formula for the covalent compound dinitrogen trioxide.

• $$N_2O_3$$

• $$NO_2$$

• $$N_2O$$

• $$N_3O_2$$

Multiple Choice

How would you name the covalent compound $$SF_6$$ ?

• Sulfur fluoride

• Sulfur hexafluoride

• Sulfur hexachloride

• Sulfur fluoride hexa