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Acids, Bases, Salt, Elements, Compounds, Mixtures (Retake)

Total questions: 25

Worksheet time: 16mins

Name
Class
Date
1.

Two or more substances placed together physically that maintains its own identity and characteristics.

a)

Element

b)

Compound

c)

Mixture

2.

Matter is classified as

a)

chemical properties and physical properties

b)

pure substances and mixtures

c)

metals and nonmetals

d)

solids, liquids, and gases

3.
Table salt (NaCl), sugar (C12H11O22), and water (H2O) are examples of 
a)
Elements
b)
Compounds
c)
Mixtures
4.
A pure substance that cannot be broken down into anything simpler by physical or chemical means. 
a)
Element
b)
Compound
c)
Homogeneous Mixture
d)
Heterogeneous Mixture
5.
Two or more pure substances chemically combined in a specific ratio that cannot be broken down except by chemical means.
a)
Element
b)
Compound
c)
Homogeneous Mixture
d)
Heterogeneous Mixture
6.
Sweet tea, lemonade, brass, and whole milk are examples of 
a)
Elements
b)
Compounds
c)
Mixtures
7.

The picture represents

a)

An element

b)

A compound

c)

A mixture

8.
Carbon (C), Hydrogen (H), Flourine (Fl), Sodium (Na) are examples of 
a)
Elements
b)
Compounds
c)
Mixtures
9.

This picture represents

a)

An element

b)

A compound

c)

A mixture

10.

There are two types of pure substances;

a)

homogeneous and heterogeneous mixtures

b)

elements and compounds

c)

compounds and mixtures

d)

elements and mixtures

11.

This picture represents

a)

An element

b)

A compound

c)

A mixture

12.

Substances that have unique, identifying properties are with only ONE type of particle are called

a)

Solutions

b)

Homogeneous Mixture

c)

Heterogeneous Mixture

d)

Pure Substances

13.

Which particle diagram can be classified as a compound?

a)
b)
c)
d)
14.
This picture represents: 
a)
Element
b)
Compound
c)
Mixture of Elements
d)
Mixture of Compounds
15.
In a neutralization reaction, what are the products of a reaction between an acid and a base?
a)
Another acid and base
b)
Carbon dioxide and a salt
c)
Water and a salt
d)
Either two acids or two bases
16.
The pH scale is a range from:
a)
1-7
b)
0-14
c)
1-14
d)
1-20
17.
A(n) ______ is a substance with a pH less than 7
a)
Acid
b)
Alkaline
c)
Base
d)
Buffer
18.
A(n) _______ is a substance with a pH greater than 7.
a)
Base
b)
Acid
c)
Buffer
d)
Water
19.
What is the only substance with a neutral pH of 7?
a)
Milk
b)
Orange Juice
c)
Water
d)
Blood
20.
A solution with a pH of 3.6 would be...
a)
Acid
b)
Base
c)
Neutral
d)
Acid and Base
21.
A solution with a pH of 8.6 would be...
a)
Acid
b)
Base
c)
Neutral
d)
Acid and Base
22.
Tastes Sour
a)
Acids
b)
Bases
c)
Salts
d)
All
23.
Tastes bitter.
a)
Acids
b)
Bases
c)
Salts
d)
All
24.
According to the pH range which substance is more acidic than lemon juice
a)
Hydrochloric acid
b)
cabbage
c)
milk
25.
Feels slippery.
a)
Acids
b)
Bases
c)
All