Pure Substances and Mixtures

Last updated over 1 year ago

17 questions

Instructions

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Library

Pure Substances and Mixtures

Last updated over 1 year ago

17 questions

Instructions

Complete the formative for a grade. There will be no "re-do's". What you make will be recorded in the grade portal. Below a 70 is failing. 

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Draggable item		Corresponding Item

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Draggable item		Corresponding Item

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Draggable item		Corresponding Item

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Draw a model of element particles compared to a model of compound particles. You should have two pictures and show the difference by labels or description

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Draw a model of a heterogeneous mixture compared to a homogeneous mixture. You should have two pictures and show the difference by labels or description

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In your own words describe the difference between a pure substance and a mixture. Use complete sentences and explain in detail.

Complete the formative for a grade. There will be no "re-do's". What you make will be recorded in the grade portal. Below a 70 is failing. 

When classifying the substances as an Element, you should ...(check all that apply)

Determine all the particle are the same

Determine all the substance is different

Determine if the substance has atoms or molecules

Determine if the atoms in the molecule are the same

When determining that a substance is a Homogeneous mixture you should first determine if it has all particle that a mixed together, then you should determine ...

if the particles are all the same

if the particles are molecules

if the particles are uniformly spread out

if the particles are lumped together and can easily be picked out

Both types of mixtures can be separated by physical means is a true statement because ....

Mixtures bond chemically to form a new substance

Mixtures do not bond chemically to form a new substance

Mixtures can only be separated by chemical processes

This statement is false

An element is a pure substance. This means that it contains different particles of matter in it's composition.

True

False

What is a pure substance made up of only one type of atom?

Mixture

Solution

Element

Compound

Which of the following would be considered a compound?

Sand

Iron (Fe)

Water (H2O)

Oxygen (O2)

What type of substance, by definition, cannot be chemically decomposed into simpler substances?

Heterogeneous mixture

Homogeneous mixture

Compound

Element

What is formed when two or more elements combine chemically?

All of the above

Compound

Element

Mixture

Which classification includes mixtures that are uniform in composition?

Compound

Heterogeneous

Solution

Homogeneous

What type of mixture is characterized by the non-uniform distribution of its components?

Heterogeneous

Element

Homogeneous

Compound

Match the following terms to their definitions.

Draggable item		Corresponding Item
Compound		A substance containing two or more components mixed together but not chemically combined.
Element		A substance formed from two or more elements chemically united in fixed proportions.
Mixture		A substance that cannot be broken down into simpler substances by chemical means.

Match the type of substance with its example.

Draggable item		Corresponding Item
Compound		Gold (Au)
Element		Air
Mixture		Water (H2O)

Correlate the scientific terminologies with their precise explained meanings.

Draggable item		Corresponding Item
Mixture		Material with a consistent composition and properties
Pure Substance		Uneven distribution of components
Heterogeneous		Combination of two or more substances which retain their own properties

What can a mixture be classified as?

Element

Heterogeneous

Compound

Homogeneous

Draw a model of element particles compared to a model of compound particles. You should have two pictures and show the difference by labels or description

Draw a model of a heterogeneous mixture compared to a homogeneous mixture. You should have two pictures and show the difference by labels or description

In your own words describe the difference between a pure substance and a mixture. Use complete sentences and explain in detail.

When classifying the substances as an Element, you should ...(check all that apply)

Determine all the particle are the same

Determine all the substance is different

Determine if the substance has atoms or molecules

Determine if the atoms in the molecule are the same

When determining that a substance is a Homogeneous mixture you should first determine if it has all particle that a mixed together, then you should determine ...

if the particles are all the same

if the particles are molecules

if the particles are uniformly spread out

if the particles are lumped together and can easily be picked out

Both types of mixtures can be separated by physical means is a true statement because ....

Mixtures bond chemically to form a new substance

Mixtures do not bond chemically to form a new substance

Mixtures can only be separated by chemical processes

This statement is false

An element is a pure substance. This means that it contains different particles of matter in it's composition. 

True

False

What is a pure substance made up of only one type of atom?

Mixture

Solution

Element

Compound

Which of the following would be considered a compound?

Sand

Iron (Fe)

Water (H2O)

Oxygen (O2)

What type of substance, by definition, cannot be chemically decomposed into simpler substances?

Heterogeneous mixture

Homogeneous mixture

Compound

Element

What is formed when two or more elements combine chemically?

All of the above

Compound

Element

Mixture

Which classification includes mixtures that are uniform in composition?

Compound

Heterogeneous

Solution

Homogeneous

What type of mixture is characterized by the non-uniform distribution of its components?

Heterogeneous

Element

Homogeneous

Compound

Match the following terms to their definitions.

Compound

A substance containing two or more components mixed together but not chemically combined.

Element

A substance formed from two or more elements chemically united in fixed proportions.

Mixture

A substance that cannot be broken down into simpler substances by chemical means.

Match the type of substance with its example.

Compound

Gold (Au)

Element

Air

Mixture

Water (H2O)

Correlate the scientific terminologies with their precise explained meanings.

Mixture

Material with a consistent composition and properties

Pure Substance

Uneven distribution of components

Heterogeneous

Combination of two or more substances which retain their own properties

What can a mixture be classified as?

Element

Heterogeneous

Compound

Homogeneous