Mixture and Pure Substance

Mixture and Pure Substance

Multiple Choice

What is this?

• Element

• Compound

• Homogeneous Mixture

• Heterogeneous MIxture

Multiple Choice

Coffee

• Pure Substance

• Mixture

Multiple Choice

Water

• Pure Substance

• Mixture

Multiple Select

Select all the elements. (Pick 3.) $H_2O$ 

•  $H_2O$  

• Nitrogen

• Oxygen

•  $Cl_2$  

• NaCl

Multiple Choice

What is the smallest unit of matter?

• atom

• element

• molecule

• compound

Multiple Choice

True or False: elements AND compounds are pure substances.

• True

• False

Multiple Choice

The picture shown here is what type of mixture?

• homogeneous
• hetergeneous
• pure substance
• element

Multiple Choice

A mixture that is uniform and well mixed is _____.

• homogeneous

• hetergeneous

• pure substance

• compoud

Multiple Choice

What is an example of a mixture?

• iron

• ice

• soil

• gold

Multiple Choice

Air is:

• An element

• A compound

• A mixture

• None of these

Multiple Choice

Which of these is a mixture?

• Laundry Detergent

• Salt (NaCl)

• Oxygen (O)

• Fluorine (Fl)

Multiple Choice

Which of these is an element?

• Salt (NaCl)

• Water (H20)

• Oxygen (O)

• Carbon Dioxide (CO2)

Multiple Choice

A pure substance that cannot be broken down into other substances by chemical or physical means. 

• compound          
• atom
• mixture 
• element

Multiple Choice

A group of 2 or more items, that are not chemically combined

• Pure Substance

• Mixture

Multiple Choice

When there is 2 or more atoms combined together

• Element

• Compound

• Homogeneous Mixture

• Heterogeneous Mixture

Multiple Choice

When there is one type of atom

• Element

• Compound

• Homogeneous Mixture

• Heterogeneous Mixture

Multiple Choice

When there is one substance....

• Pure Substance

• Mixture

Multiple Choice

What is it?

• Pure Substance

• Mixture

Multiple Choice

What is it?

• Pure Substance

• Mixture

Multiple Choice

What is it?

• Pure Substance

• Mixture

Multiple Choice

What is it?

• Element

• Compound

• Homogeneous Mixture

• Heterogeneous Mixture

Multiple Choice

What is it?

• Element

• Compound

• Homogeneous Mixture

• Heterogeneous Mixture

Multiple Choice

What is it?

• Element

• Compound

• Homogeneous Mixture

• Heterogeneous Mixture

Multiple Choice

• Element

• Compound

• Homogeneous Mixture

• Heterogeneous MIxture

Multiple Choice

What is this?

• Element

• Compound

• Heterogeneous MIxture

• Homogeneous Mixture

Multiple Choice

Chicken noodle soup

• heterogeneous mixture

• homogeneous mixture

Multiple Choice

cake batter

• heterogeneous mixture

• homogeneous mixture

Multiple Choice

Milk

• Heterogeneous mixture

• Homogeneous mixture

Multiple Choice

What is this?

• Element

• Compound

• Homogeneous Mixture

• Heterogeneous Mixture

Multiple Choice

What is this?

• Element

• Compound

• Homogeneous Mixture

• Heterogeneous Mixture

Intensive and Extensive Properties

Multiple Choice

A balloon filled with only helium gas, H₂. The balloon contains a _____.

• Homogeneous mixture

• Heterogeneous mixture

• Pure substance

• Solution

Multiple Choice

A student observes that a white crystal substance will start bubbling with added to acetic acid. This reaction is an example of what type of property?

• Extensive property

• Intensive property

• Physical property

• Chemical property

Multiple Choice

A student is observing a new substance. He notices that the substance is a white crystal with a mass of about 2 grams. What type of properties did you observe?

• Extensive property

• Intensive property

• Physical property

• Chemical property

Multiple Choice

_____ is the study of the composition, structure, and properties of matter.

• Science

• Chemistry

• Biology

• Knowledge

Multiple Choice

Mixtures are

• physically combined and can usually be separated.

• physically combined and can never be separated.

• chemically combined.

• We have no way of knowing how they combine.

Multiple Choice

To compress means to be squeezed or pressed together. Why is a gas easily compressible, but solids are not?

• Gas particles are much smaller.

• Particles in a solid are not strongly attracted to one another.

• Molecules in a solid are much larger.

• Particles in a gas are much farther apart compared to a solid.

Multiple Choice

Properties that remain the same regardless of the amount present are called

• intensive properties

• extensive properties

• chemical properties

• physical changes

Multiple Choice

If a mixture is uniform in composition, it is considered to be

• heterogeneous.

• molecular.

• homogeneous.

• elemental.

Multiple Choice

Which is not true about the liquid state of matter?

• The liquid state has a definite volume and a definite shape.

• The liquid state takes on the shape of its container.

• The liquid states has a definite volume and an indefinite shape.

• The particles in a liquid can easily move past each other.

Multiple Choice

In every chemical change, two or more reactants form at least one

• product

• gas

• precipitate

• reaction

Multiple Choice

A change in a substance that does not involve a change in the identity of the substance is called (a)n

• chemical change.

• physical change.

• extensive property.

• intensive property.

Multiple Choice

Which of the following is an intensive property of matter?

• volume

• mass

• energy content

• density

Multiple Choice

Extensive properties

• include boiling point.

• do not depend on the amount of matter present.

• include volume and mass.

• all depend on the chemical composition of the matter present.

Multiple Choice

A compound is

• a substance that is composed of two or more elements that are chemically bonded.

• a molecule formed by atoms of the same element.

• another word for an atom.

• any substances that can be split apart.

Multiple Choice

An element is made of one type of

• molecule

• atom

• compound

• mixture

Multiple Choice

The fundamental building block of matter is the

• atom

• molecule

• cell

• proton

Multiple Choice

Mass is a measurement of

• how much space an object occupies.

• how dense an object is.

• the amount of matter in an object.

• the volume of an object.

Multiple Choice

A piece of ice melts and reacts with sodium

• Physical Change

• Chemical Change

Multiple Choice

Ice melts

• Physical Change

• Chemical Change

Multiple Choice

Blue color

• Physical Property

• Chemical Property

Multiple Choice

You mixed two liquids and a precipitate formed, what kind of change occured?

• Physical

• Chemical

Multiple Choice

Which of the following changes is a physical change of matter?

• water evaporating

• paper burning

• a nail rusting

• a silver spoon tarnishing

Multiple Choice

Moldy Bread

• Physical Change

• Chemical Change

Multiple Choice

What happens to the atoms of a substance in a chemical change?

• Atoms get bigger

• Atoms change their arrangement and motion

• Atoms get smaller

• Atoms bond together differently

Multiple Choice

What happens to the atoms of a substance in a physical change?

• Atoms get bigger

• Atoms change their arrangement and motion

• Atoms get smaller

• Atoms bond together differently

Multiple Choice

What is a sign of a chemical change?

• Stretching

• Tearing

• Compressing

• Bubbles

Multiple Choice

Texture of Sodium chloride

• Intensive property

• Extensive property

Multiple Choice

Mass of Calcium chloride

• Intensive property

• Extensive property

Multiple Choice

Why are intensive properties used to characterize matter?

• They do not change with the amount of matter

• They vary with the amount of matter

• They are more pronounced than extensive properties

• None of these are correct

Multiple Choice

Which of the following is not an extensive property?

• volume

• mass

• temperature

• length

Multiple Choice

What kind of physical property is this? Color

• intensive

• extensive

Multiple Choice

Which set of properties, intensive or extensive, are based on the size of a sample?

• intensive

• extensive

Poll

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• Yes

• No

• Few Questions

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