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Elements, Compounds, & Mixtures Vocab

Total questions: 31

Worksheet time: 24mins

Name
Class
Date
1.

Water is made up of hydrogen and oxygen, two elements that were chemically combined. This makes water a(n)

a)

atom

b)

compound

c)

element

d)

mixture

2.

__ is a pure substance containing two or more kinds of atoms.

a)

Element

b)

compound

c)

mixture

d)

solution

3.

An element is a ___ that cannot be separated into simpler substances by physical or chemical means.

a)

pure substance

b)

mixture

c)

solution

d)

compound

4.

Lucky Charms Cereal

a)

Compound

b)

Element

c)

Mixture

5.

Koolaid

a)

Compound

b)

Element

c)

Mixture

6.

Mg

a)

Compound

b)

Element

c)

Mixture

7.

Salt (NaCl)

a)

Compound

b)

Element

c)

Mixture

8.

What type of mixture is trail mix?

a)

compound

b)

heterogeneous

c)

homogeneous

9.
A substance that contains only one type of atom is a(n)
a)
compound
b)
element
c)
heterogeneous mixture
d)
homogeneous mixture
10.

What is the smallest part of an element ?

a)

atom

b)

molecule

c)

compound

d)

none of the above

11.

Over 100 existing elements are listed and classified on the________.

a)

periodic table

b)

anchor chart

c)

map of USA

d)

Table of Contents

12.
Which of the following is a pure substance? 
a)
Water
b)
Salad
c)
Chocolate milk
d)
All of them 
13.

Which of these is an element?

a)

Salt (NaCl)

b)

Water (H20)

c)

Oxygen (O)

d)

Carbon Dioxide (CO2)

14.

Which of these is a compound?

a)

Aluminium (Al)

b)

Carbon Dioxide (CO2)

c)

Nitrogen (N)

d)

Sand

15.

Air is:

a)

An element

b)

A compound

c)

A mixture

d)

None of these

16.
A mixture that is uniform and well mixed is _____.
a)
homogeneous
b)
hetergeneous
c)
pure substance
d)
compoud
17.

Vegetable Salad

a)

Pure Substance

b)

Mixture

18.
How many elements are represented in the compound?
Na2CO3
a)
1
b)
2
c)
3
d)
4
19.

What is a substance composed of atoms of two or more different elements that are chemically combined

a)

Element

b)

Compound

c)

Solvent

d)

Solute

20.

What is a mixture in which the composition is not uniform throughout the mixture?

a)

Heterogeneous Mixture

b)

Homogeneous Mixture

c)

Colloid

d)

Solution

21.

What is a mixture in which the composition is uniform throughout the mixture?

a)

Heterogeneous Mixture

b)

Solute

c)

Homogeneous Mixture

d)

Solvent

22.

An example of...

a)

mixture

b)

element

c)

compound

23.

Substances formed from atoms of two or more elements are called

a)

mixtures

b)

compounds

c)

colloids

d)

elements

24.
Pizza
a)
Element
b)
Compound
c)
Heterogenous Mixture
d)
Solution
25.

Located on the Periodic Table

a)

Elements

b)

Compounds

c)

Both

26.

What is the difference between Co and CO?

a)

CO is an element but Co is a compound

b)

Nothing is different. They are the same thing.

c)

CO is two elements and Co is only one element

d)

Co is not a pure substance

27.
Carbon Dioxide is a ______ 
a)
compound 
b)
element 
c)
mixtures 
d)
Battle of Bunker Hill 
28.

How many elements are in this compound?

a)

13

b)

6

c)

4

d)

3

29.
Is Iron (Fe) an element or a compound?
a)
Element
b)
Compound
30.

Which of the following answer choices is NOT a compound?

a)

NaCl

b)

HMg

c)

Si

d)

PbSO

31.

Which answer choice is an element?

a)

X

b)

Y

c)

W

d)

Z

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