Chemistry Classification of Matter

1.

Multiple Choice

1 min

1 pt

An ______________ is the basic particle from which all elements are made.

chemical bond

atom

molecule

2.

Multiple Choice

3 mins

1 pt

Elements are represented by 1 or 2 letter symbols.
True or False.

True

False

3.

Multiple Choice

2 mins

1 pt

A _________________ is a substance made of 2 or more elements that are chemically combined in a set ratio.

compound

element

atom

chemical bond

4.

Multiple Choice

3 mins

1 pt

A _____________________ is made of 2 or more substances that are together in the same place, but their atoms are not chemically bonded.

chemical bond

mixture

molecule

atom

5.

Multiple Choice

3 mins

1 pt

A ______________ mixture is when you can usually see the different parts and the can easily be separated.

heterogeneous

homogeneous

6.

Multiple Choice

3 mins

1 pt

A _______________ mixture is when the parts of the mixture are evenly mixed and you can't see the different parts.

heterogenous mixture

homogeneous mixture

7.

Multiple Choice

3 mins

1 pt

An ______________ is a substance that cannot be broken down.

element

molecule

chemical bond

8.

Multiple Choice

2 mins

1 pt

This law states that energy cannot be created or destroyed, but it can change form.

Endothermic reaction

Law of Conservation of Energy
LOCOE

Exothermic reaction

Law of Conservation of Matter
LOCOM

9.

Multiple Choice

3 mins

1 pt

An element is made up of only one kind of _____.

isotope

plastic

atom

metal

10.

Multiple Choice

3 mins

1 pt

What is the left part of a chemical equation called?
H_{2 +}O → H₂O

Reactants

Products

Yields

Chemical Equation

11.

Multiple Choice

3 mins

1 pt

An ice cube is put into a heated pan. What will most likely happen to the molecules in the ice as the ice is heated

The molecules will begin to move slower.

The molecules will begin to move faster

The molecules will begin to increase in density

The molecules will begin to condense in the air.

12.

Multiple Choice

2 mins

1 pt

Which among the following is an element?

brass

bronze

silver

stainless steel

13.

Multiple Choice

3 mins

1 pt

Physical or chemical change?
A solid is crushed into a powder?

physical change

chemical change

14.

Multiple Choice

2 mins

1 pt

Which of the following are pure substances?

elements

colloids

heterogeneous mixture

solutions

15.

Multiple Choice

1 min

1 pt

The symbol of gold is _____

Go

Au

Gd

A

16.

Multiple Choice

2 mins

1 pt

Define a Chemical Property

A property which depends on the objects size or matter.

A property of matter not involving in its manifestation a chemical change

A property or behavior of a substance which undergoes a chemical change or reaction.

A property which makes the object smell or taste different.

17.

Multiple Choice

2 mins

1 pt

How is a gas defined?

Indefinite shape, indefinite volume

Definite shape, definite volume

Found in stars

Definite volume, indefinite shape

18.

Multiple Choice

2 mins

1 pt

How is a solid defined?

Indefinite shape and indefinite volume

Definite shape and definite volume

Found in the stars

Definite volume, indefinite shape

19.

Multiple Choice

2 mins

1 pt

Define a liquid.

Indefinite shape, indefinite volume

Definite shape, definite volume

Found in stars

Definite volume, indefinite shape

20.

Multiple Choice

2 mins

1 pt

At higher temperatures

particles in an object have less energy

particles in an object move faster

a gas contracts

Explore this activity with a free account