Pure Substance and Mixtures

Two (2) classification of Pure Substance

• Homogenous Mixture

• Element

• Compound

• Heterogenous Mixture

A pure substance consists only of ___ type of atom.

(Express your answer in words)

How are pure substances different from mixtures?

• Mixtures are physically combined and can be separated through physical means. Meanwhile, pure substances are chemically combined and cannot be separated through physical means.

• Pure substances have indefinite and changing compositions. Whereas, mixtures have definite and unchanging composition.

• Pure substances have the same properties throughout a given sample. Whereas, mixtures have inconsistent properties.

• Pure substances are physically combined and can be separated through physical means. Meanwhile, mixtures are chemically combined and cannot be separated through physical means.

True or False:

The properties of a compound are different from the elements it is composed of.

• True

• False

How many known elements are there in the periodic table?

• 116

• 118

• 181

• 161

Element that are normally solid at room temperature with the exception of mercury (Hg).

• Metal

• Nonmetal

• Metalloid

• Semimetals

Which of the following is an example of a compound?

• Lithium (Li)

• Boron (B)

• Hydrogen Peroxide (H2O2)

• Iron (Fe)

Carlos Yulo won two (2) gold medals in Paris Olympics 2024. Classify the gold medal received by him.

• Element

• Compound

• Homogenous Mixture

• Heterogenous Mixture

Organize these options into the right categories:

Groups:

(a) Elements

,

(b) Compounds

,

(c) Homogenous Mixture

,

(d) Heterogenous Mixture

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