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Matter II Extended Practice Review

Total questions: 45

Worksheet time: 2hrs 48mins

Name
Class
Date
1.
What determines how ionic bonds will form?
a)
Number of protons
b)
Mass of the atom
c)
Number of total electrons
d)
Number of valence electrons
2.

Typically, how many electrons are needed in the outer orbital of an atom to be stable?

a)

10

b)

6

c)

4

d)
8
3.
Why do some elements form ions?
a)
to be stable
b)
to be happy
c)
to have more energy
d)
to create mass
4.
When is an atom stable?
a)
when it has plenty of friends and family that love it
b)

when it has a full outer orbital

c)

when it is neutral

d)
when its protons equal its neutrons
5.
As an ion, sulfur has a ____ charge.
a)

+1

b)

-1

c)

+2

d)

-2

6.

An ionic bond is the attraction between: (Select ALL that apply)

a)

oppositely charged ions

b)

similarly charged ions

c)

metals and nonmetals

d)

neutral atoms

e)

cations and anions

7.

What two types of atoms make a covalent bond?

a)

2 Nonmetals

b)

1 Metal and 1 Nonmetal

c)

2 Metals

d)

2 Noble Gases

8.
How are ionic bonds formed?
a)
Transfer of electrons
b)
Sharing of electrons
9.

A region that forms when valence electrons from different atoms interact with each other.

a)

Chemical Bond

b)

Valence Electron

c)

Outershell

d)

Chemical Equation

10.

Is this a molecule, compound or both?

O2

a)

Molecule

b)

Compound

c)

Both

11.

What is being described here:

Any two or more different elements joined together.

a)

Molecule

b)

Compound

c)

Both

12.

Is this a molecule, compound or both?

H2O

a)

Molecule

b)

Compound

c)

Both

13.

Is this a molecule, compound or both?

C12H22O11

a)

Molecule

b)

Compound

c)

Both

14.

Tricky Question Alert!

Is this a molecule, compound or both?

C

a)

Molecule

b)

Compound

c)

Neither

15.
a)
Element
b)
Compound
c)
Mixture of compound and element
d)
Mixture of elements
16.
This diagram represents a _____.
a)
pure substance that is a compound
b)
mixture of elements
c)
pure substance that is an element
d)
mixture of compounds
17.
Are these molecules also compounds?
a)
YES
b)
NO
18.

In this diagram, X represents...

a)

A compound

b)

A mixture

c)

An atom

d)

An element

19.

The _____ describes the atoms in a compound.

a)

Chemical Equation

b)

Chemical Formula

c)

Chemical Symbol

d)

Coefficient

20.

How many elements are in C6H12O6?

a)

1

b)

2

c)

3

d)

4

21.

Which of the following is a compound?

a)

Co

b)

O2

c)

C

d)

CO2

22.

Which is the correct formula for:

3 Hydrogen (H)

1 Sulfur (S)

4 Oxygen (O)

a)

H3SO4

b)

HSO4

c)

H4S3O

d)

H2O

23.

The blue numbers in the image below represent _______

a)

I don't know, and don't want to try

b)

Coefficients

c)

Subscripts

d)

none of the answers are correct

24.

How many TOTAL atoms are in:

H2SO4

a)

6

b)

5

c)

7

d)

3

25.

How many atoms of Sodium (Na) are in 6NaCl?

a)

1

b)

12

c)

3

d)

6

26.

What are the products?

NH3 -------> N2 + H2

a)

N2 + H2

b)

N2

c)

H2

d)

NH3

27.

All of the following are chemical changes except:

a)

Iron rusting

b)

Water evaporating

c)

Wood burning

d)

Food rotting

28.

How many phosphorus atoms are there?

a)

0

b)

1

c)

3

d)

4

29.

How many molecules of methane are there?

a)

0

b)

1

c)

2

d)

4

30.

What does the number 4 represent in 4NH3?

a)

Subscript

b)

Superscript

c)

Coefficient

31.
How many Sodium (Na) are in 6NaCl?
a)
1
b)
12
c)
6
32.

How many elements are in C6H12O6?

a)

1

b)

6

c)

3

d)

24

33.

C2H6 + 5O2 → 2CO2 + 3H2O2C_2H_6\ +\ 5O_2\ \rightarrow\ 2CO_2\ +\ 3H_2O_2  
Given this chemical equation, what are the REACTANTS?

a)

C2H6 and 5O2C_2H_{6\ }and\ 5O_2  

b)

2CO2 and 3H2O22CO_2\ and\ 3H_2O_2  

34.

Chemical Equation

a)

A representation of a chemical reaction

b)

the starting materials in a chemical reaction

c)

the new substances that are formed in a chemical reaction

d)

tells how many atoms, molecules, or formula units take part in a reaction

35.
If a chemical reaction is EXOTHERMIC, the temperature would....
a)
Stay the same
b)
Increase
c)
Decrease
36.
After you mix two substances together, a new substance forms.  This is an example of:
 
a)
 Physical Change
b)
 Chemical Change
37.
In an exothermic reaction, heat is ...
a)
taken in or absorbed
b)
given out or released
38.
In an endothermic reaction, heat is ...
a)
taken in or absorbed
b)
given out or released 
39.
When you freeze water, it turns to ice.  What kind of change is this?
a)
 Physical
b)
Chemical
40.
What type of reaction occurs in a hand warmer
a)
exothermic
b)
endothermic
41.
Baking bread and cooking an egg are examples of....?
a)
Endothermic processes
b)
Exothermic processess
c)
None of these 
42.
Is photosynthesis an exothermic or endothermic reaction?
a)
Endothermic
b)
Exothermic
c)
Neither
43.

Broken glass is a

a)

chemical change

b)

physical change

44.

Burning wood is a

a)

chemical change

b)

physical change

45.

A change in which NEW substances are formed.

a)

Chemical change

b)

Physical change

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