Chemistry Module 5

Chemical Formulas

100

Draw the chemical formula for calcium nitrate.

Ca(NO₃)₂

example 5.1 p. 175

200

Draw the chemical formula for this compound: lithium sulfite

Li₂SO₃

Extra practice problem 1a

300

Draw the chemical formula for ammonium carbonate.

(NH₄)₂CO₃

On Your Own 5.2 b

400

Draw the chemical formula for beryllium nitrate.

Be(NO₃)₂

Practice Problems 1b

500

Draw the chemical formula for copper (I) acetate.

CuC₂H₃O₂

example 5.1 p.176

Names

100

Name this compound: NiPO₄

nickel (III) phosphate

extra practice problem 2d

200

Name the following compound: NH₄ClO₂

ammonium chlorite

extra practice problems 2a

300

Name this compound: Mn(NO₂)₂

manganese (II) nitrite

Extra Practice Problems 2b

400

Name this compound: Ba(NO₃)₂

barium nitrate

On Your Own 5.1a

500

Name this compound: LiCN

lithium cyanide

On Your Own 5.1d

Polyatomic Ions

100

Write the formula for acetate.

C₂H₃O₂^-

Table 5.1 p. 175

200

Write the formula for chromate.

CrO₄^2-

Table 5.1 p.175

300

Write the formula for carbonate.

CO₃^2-

Table 5.1 p.175

400

Write the formula for nitrate.

NO₃^-

Table 5.1 p.175

500

Write the formula for ammonium. 

NH₄⁺

Table 5.1 p.175

All shapes and sizes

100

A 90 degree bond angle is seen in this type of molecule.

2-dimensional/flat molecule

200

Tetrahedral molecular shapes have a bond angle of this many degrees.

What is 109?

300

Pyramidal shaped 3 dimensional models have this degree of a bond angle.

What is 107?

400

A 105 degree bond angle produces this shape 3 dimensional model.

What is bent?

500

Determine the shape of the following molecule, give the bond angle and identify as polar covalent or non polar covalent. 

CCl₂S

See Extra Practice Problem 6

Classify this!

100

Identify and label the polar bonds in this molecule:

CCIF₃

All the bonds are polar

On Your Own 5.9b

Answer p. 201 textbook

200

Identify this molecule as ionic, polar covalent or non polar covalent: SiFCl₃

polar covalent

extra practice problem 9a

300

Identify this molecule as ionic, polar covalent or non polar covalent: AlF₃

Ionic

Extra Practice Problem 9c

400

Determine the shape of this molecule, give its bond angle and draw a picture: PCl₃

pyramidal with a bond angle of 107 degrees

Practice Problems 4

500

Determine the shape of the following molecule, give its bond angle and draw a picture of it: OF₂

bent with a bond angle of 105 degrees

Practice problem 7