Font size
WorksheetsElement Compound Mixture
Total questions: 59
Worksheet time: 29mins
An _______________ cannot be broken down into any other substance.
element
Compound
Mixture
Molecule
1. The symbol for an element can found on the _______________ _____________.
table of elements
elements table
periodic table
problem table
Fe is the __________ for iron.
element
symbol
formula
sign
A ____________ is formed when one or more elements are chemically bonded.
element
compound
mixture
molecule
A formula is used to represent a ______________.
element
compound
mixture
molecule
A ____________________ is a combination of may different elements not chemically combined.
element
Compound
mixture
molecule
Which substance represented in this equation is classified as an element?
CO + H2O → CO2 + H2
CO
H2O
CO2
H2
Chex Mix is an example of
Element
Compound
Mixture
Chocolate Milk is an example of
Element
Compound
Mixture
H2O is an example of
Element
Compound
Mixture
CO2 is an example of
Element
Compound
Mixture
Au is an example of
Element
Compound
Mixture
O is an example of
Element
Compound
Mixture
Salt is an example of
Element
Compound
Mixture
H3PO4 is an example of
Element
Compound
Mixture
Mud is an example of
Element
Compound
Mixture
NaCl is an example of
Element
Compound
Mixture
Which of the following is not a compound?
HCl
NaCl
Cl
CO2
Two or more substances in the same place but NOT chemically combined or in a
specific ratio is called ___.
Element
Compund
Mixture
Pure Substance
Select all of the compounds from the list of words and symbols. (There is more than one correct answer.)
Tea
Oxygen
Water
CO2
NaCl
Select the mixtures from the list of words and symbols. ( There is more than one answer.)
Mud
Oxygen
NaCl + H2O
CO2
Tea
Which of the following is the best description of an element?
A substance that cannot be broken down into simpler substances.
A naturally occurring mineral made of more than one substance.
A small particle made with a specific chemical composition.
A collection of atoms that have different abilities when joined together.
Provided is a list of five different substances.
NaOH Cu H2O N2 H2
How many of these substances are elements?
2
3
4
5
How are elements and compounds different?
A compound is represented by a chemical formula, and elements are represented by a chemical symbol.
Compounds are represented by chemical symbols of one letter, and elements are represented by symbols of two letters.
Elements are pure substances, and compounds are not.
Elements are always larger units of matter, and compounds are smaller.
Below is a list of some substances and their symbols.
Oxygen O
Sodium Chloride NaCl
Gold Au
Neon Ne
How many of these substances are an example of an element?
1
2
3
4
A(n) ______________ is formed when two or more elements chemically combine.
Compound
Element
Mixture
A ___________ is a combination of many different elements not chemically combined.
Element
Compound
Mixture
Copper - Cu
Element
Compound
Homogeneous Mixture
Heterogeneous Mixture
Oil and Water
Element
Compound
Homogeneous Mixture
Heterogeneous Mixture
Chalk - CaCO3
Element
Compound
Homogeneous Mixture
Heterogeneous Mixture
The diagram shows
element
mixture
compound
Is this an element, compound or mixture?
(Each color circle is a different atom and touching circles are molecules.)
Element
Compound
Mixture
Is this an element, compound or mixture?
(Each color circle is a different atom and touching circles are molecules.)
Element
Compound
Mixture
Is this an element, compound or mixture?
(Each color circle is a different atom and touching circles are molecules.)
Element
Compound
Mixture
Is this an element, compound or mixture?
(Each color circle is a different atom and touching circles are molecules.)
Element
Compound
Mixture
Is this an element, compound or mixture?
(Each color circle is a different atom and touching circles are molecules.)
Element
Compound
Mixture
Is this an element, compound or mixture?
(Each color circle is a different atom and touching circles are molecules.)
Element
Compound
Mixture
Air is an example of .......
Element
Compound
Mixture
Helium is an example of .......
Element
Compound
Mixture
Carbon Dioxide is an example of .......
Element
Compound
Mixture
Gold is an example of .......
Element
Compound
Mixture
Coke is an example of .......
Element
Compound
Mixture
Salt is an example of .......
Element
Compound
Mixture
Water is an example of .......
Element
Compound
Mixture
Kool-aid is an example of .......
Element
Compound
Mixture
Oxygen is an example of .......
Element
Compound
Mixture
Chocolate Milk is an example of .......
Element
Compound
Mixture
Pure substances that cannot be broke down into simpler substances.
Element
Compound
Mixture
Air is an example of
Element
Compound
Mixture
The kids are using sugar to make cookies, sugar is an example of
Element
Compound
Mixture
The man is carrying bags of aluminum cans. Aluminum is an example of
Element
Compound
Mixture
The food in the middle is an example of
Element
Compound
Mixture
When people marry they exchange rings, these rings are frequently made of gold. Gold is an example of
Element
Compound
Mixture
Bees provide us with honey that we can eat. Honey is an example of
Element
Compound
Mixture
Neon lights, like the one below, typically have the gas neon (Ne) in them, and it lights up when an electrical current passes through the gas. Neon is an example of
Element
Compound
Mixture
The following picture is of a substance known as silicon dioxide (SiO2), this is an example of
Element
Compound
Mixture
The picture shows a silver coffee pot, the silver (Ag) it is made of is an example of
Element
Compound
Mixture
The following shows acetic acid (CH3COOH) this is an example of
Element
Compound
Mixture
