Pure substances and Mixtures

​Pure Substances and Mixtures

By Sandra Mould Urias

Fill in the Blank

A pure substance that consists of only one type of atom is called an ___.

Multiple Choice

These contain only one kind of atom. 

• element 
• compound 
• mixture 
• water 

Multiple Choice

Carbon Dioxide is a ______ 

• compound 
• element 
• mixtures 
• Battle of Bunker Hill 

Multiple Choice

Which of the following represents an element?

• H₂O
• H₂
• NaCl
• CaCO₃

Multiple Choice

Salt water boils and the water completely evaporates, salt (NaCl) is left in the bottom of the beaker. Which of the following is left in the beaker?

• Compound
• Element
• Mixture
• None of the Above

Multiple Choice

This picture represents which of the following?

• element
• compound
• mixture of elements
• mixture of compounds

Multiple Choice

Which statement about mixtures is correct?

• Mixtures can be separated physically.

• Mixtures are always homogeneous.

• Mixtures are made up of only one type of element.

• Mixtures cannot be separated.

Multiple Choice

Which of the following is a homogeneous mixture?

• Fruit salad

• Air

• Soil

• Oil and water

Multiple Select

Based on the information from the slides, which of the following statements are correct about pure substances?

• They are composed of only one type of matter.

• They can be separated physically.

• They can be elements or compounds.

• They contain only one kind of particle.

Multiple Select

Which of the following are examples of mixtures?

• Air

• Cake

• Diamond

• Salt water

Open Ended

Explain how you can distinguish between an element, a compound, and a mixture by looking at their atomic arrangements.

Multiple Choice

Which of the following best describes a compound?

• A substance made of only one type of atom

• A mixture of two or more substances not chemically combined

• A substance made of two or more elements chemically combined

• A substance that can be separated by physical means

Multiple Choice

• HETEROGENEOUS

• HOMOGENEOUS

Multiple Choice

• HETEROGENEOUS

• HOMOGENEOUS

Multiple Choice

• HETEROGENEOUS

• HOMOGENEOUS

Multiple Choice

• HETEROGENEOUS

• HOMOGENEOUS

Multiple Choice

• HETEROGENEOUS

• HOMOGENEOUS

Multiple Choice

Which of the following is an example of a heterogenous mixture?

• soap

• a salad with lettuce, olives, and tomatoes

• cup of coffee

• water

Multiple Choice

This type of mixture looks the same throughout.

• Homogenous

• Heterogeneous

Multiple Choice

Which of the following selections are the different types of mixtures?

• heterogenous, homogenous

• acid, base

• metal, nonmetal

• element, compound

Multiple Choice

• Element

• Compound

• Homogeneous Mixture

• Heterogeneous Mixture

Multiple Choice

It is a combination of two or more substances.

• Substances

• Mixtures

• Elements

• Compound

Multiple Choice

It is a form of matter which mean it has a one

type of atom or molecule.

• Substance

• Element

• Compound

• Mixtures

Multiple Choice

Is water a element or compound?

• Element

• Compound

Multiple Choice

It is a combination of two or more substances in

which the composition is uniform throughout the

mixture.

• Heterogeneous mixture

• Homogeneous mixture

• Solvation

• Solution

Multiple Choice

Mixtures can be separated by

• physical methods
• chemical reactions

Multiple Choice

Pure substances can be separated by

• physical methods
• chemical reactions

Poll

How confident do you feel identifying pure substances and mixtures?

• Very confident

• somewhat confident

• Not confident at all