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Biblioteka

Pure Substances and Mixtures

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Posljednje ažuriranje almost 2 years ago
17

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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Pitanje 1
1.

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

Pitanje 2
2.

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 ...

Pitanje 3
3.

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

Pitanje 4
4.

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

Pitanje 5
5.

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

Pitanje 6
6.

Which of the following would be considered a compound?

Pitanje 7
7.

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

Pitanje 8
8.

What is formed when two or more elements combine chemically?

Pitanje 9
9.

Which classification includes mixtures that are uniform in composition?

Pitanje 10
10.

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

Pitanje 11
11.

Match the following terms to their definitions.

Stavka koja se može prevućiarrow_right_altOdgovarajuća stavka

Compound

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

Element

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

Mixture

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

Pitanje 12
12.

Match the type of substance with its example.

Stavka koja se može prevućiarrow_right_altOdgovarajuća stavka

Compound

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Gold (Au)

Element

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Air

Mixture

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Water (H2O)

Pitanje 13
13.

Correlate the scientific terminologies with their precise explained meanings.

Stavka koja se može prevućiarrow_right_altOdgovarajuća stavka

Mixture

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Material with a consistent composition and properties

Pure Substance

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Uneven distribution of components

Heterogeneous

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Combination of two or more substances which retain their own properties

Pitanje 14
14.

What can a mixture be classified as?

Pitanje 15
15.

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

Pitanje 16
16.

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

Pitanje 17
17.

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