Chemistry Compounds Quiz

What is a compound?

• A physical blend of two or more components

• A single element in its pure form

• A mixture of elements that can be separated by physical means

• A substance with two or more elements chemically combined in a fixed proportion

How is a compound different from an element?

• An element is a mixture of different atoms

• A compound is a pure substance with only one type of atom

• An element can be broken down into simpler substances

• A compound can be broken down into simpler substances

What is a chemical change?

• A change that alters the physical appearance of a substance

• A change that involves mixing substances without altering their composition

• A change that produces matter with a different composition

• A change that can be reversed by physical means

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which compound is made of two hydrogen atoms and one oxygen atom?

• Sodium chloride

• Water

• Carbon dioxide

• Methane

Tags

NGSS.MS-PS1-1

Which compound is made of one carbon atom and two oxygen atoms?

• Methane

• Sodium chloride

• Water

• Carbon dioxide

Tags

NGSS.MS-PS1-1

What is the composition of table salt?

• Equal parts of carbon and oxygen

• Equal parts of carbon and hydrogen

• Equal parts of sodium and chlorine

• Equal parts of hydrogen and oxygen

Tags

NGSS.MS-PS1-1

What is the property of sodium chloride compared to its elements?

• It is a liquid at room temperature

• It is a poisonous gas

• It is a highly reactive metal

• It is a white solid essential for living things

Tags

NGSS.MS-PS1-2