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Worksheets

Class Quiz

Total questions: 10

Worksheet time: 50mins

Name
Class
Date
1.

What does this image represent?

a)

Compound

b)

Mixture

c)

Solution

2.

What does this image represent?

a)

Compound

b)

Mixture

c)

Solution

3.

Match the following

a)

An atom who has lost or gained an electron.

1.

Ion

b)

A bond formed between a cation (positive ion) and anion (negative ion).

2.

Ionic Bond

c)

A bond formed when atoms share one or more pairs of electrons.

3.
Covalent Bond
4.

What does the following represent? (One atom is giving up its electron.)

a)

Covalent Bond

b)

Ionic Bond

5.

What does the following represent? (The atoms are sharing electrons.)

a)

Covalent Bond

b)

Ionic Bond

6.

Neon normally has 10 electrons. If it currently has 9 electrons, what is it's total charge?

a)

Positive

b)

Negative

c)

Neutral

7.

Argon normally has 18 electrons. If it currently has 19 electrons, what is it's total charge?

a)

Positive

b)

Negative

c)

Neutral

8.

EXTRA CREDIT: Match the following

a)

1.

Hydronium Ion

b)

2.

Hydroxide Ion

c)

3.

Water Molecule

9.

Which is most BASE on the pH scale?

a)

0

b)

7

c)

14

10.

Which is most ACIDIC on the pH scale?

a)

0

b)

7

c)

14