SI Session 2/24: Unit 2 Test Review

Types of Compounds

100

Is NaCl ionic or covalent?

ionic

200

Is CN ionic or covalent?

covalent

300

What type of bonds do polyatomic ions make?

Polyatomic ions consist of covalent bonds but create ionic bonds when paired with another element

400

What type of bond is this: (NH₄)₂SO₄

Ionic

500

What is the highest bond order in CO₂?

2

Naming Compounds

100

Fe₂O₃

Iron (III) Oxide

200

Mg₂SO₄

Magnesium Sulfate

300

NH₄Cl

Ammonium Chloride

400

What is the name of PCl₃

Phosphorus trichloride

500

What does resonance do to the electrons and molecule?

Resonance delocalizes electrons and stabilizes molecules.

Chemical Formulas

100

What is the formula for Sodium Fluoride?

NaF

200

What is the formula for Copper (II) Sulfate?

CuSO₄

300

What is the formula for Dinitrogen Pentoxide?

N₂O₅

400

What elements on the periodic table can have an expanded octet?

Nonmetals below period 3

500

Which bond is stronger? Double or triple

triple

Miscellaneous

100

Why is NaCl not called Sodium Monochloride?

It is ionic and ionic compounds do not use prefixes

200

Why does Iron (Fe) need roman numerals but Calcium (Ca) does not?

Calcium has a set charge and Iron does not

300

Is NaCl polar or nonpolar

Polar

400

How many bonds are on the central atom in the Lewis structure for NH_3?

_{Bonus: How many lone pairs?}

3 bonds

1 lone pair

500

Which bond is shorter? Single or double

Double

Acids

100

What is the name of this acid: HCl

Hydrochloric Acid

200

Name the acid: H₂SO₄

Sulfuric Acid

300

What is the difference between Binary acids and Oxyacids?

Bonus: How are Binary acids named?

Binary acids have no oxygen while oxyacids do. 

Binary acids are named with the hydro- prefix and    -ic ending.

400

How many double bonds are in the structure for CH₃CONH₂

1

500

What is the Formal Charge of Oxygen in H₂O?

0