Quiz on Pure Substances and Mixtures

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Questions and Answers

Which of the following is classified as a mixture?

oxygen gas O2
sea water (correct)
glucose C6H12O6
copper Cu wire

Which component is identified as a pure substance?

air
sea water
human blood
copper Cu wire (correct)

What type of substance is glucose C6H12O6 considered?

mixture
element
compound
pure substance (correct)

Which of the following is a pure substance?

oxygen gas O2 (D) Signup and view all the answers

What classification applies to air?

mixture (B) Signup and view all the answers

Is human blood considered a pure substance or a mixture?

Mixture (C) Signup and view all the answers

Which of the following components is classified as a pure substance?

Copper Cu wire (A) Signup and view all the answers

What classification does sea water fall under?

Mixture (A) Signup and view all the answers

Oxygen gas O2 is classified as which type of substance?

Pure substance (C) Signup and view all the answers

What is the classification of air with respect to its composition?

Mixture (C) Signup and view all the answers

Study Notes

Pure Substances

Copper (Cu) wire is a pure substance.
Glucose (C6H12O6) is a pure substance.
Oxygen gas (O2) is a pure substance.

Mixtures

Air is a mixture of gases, including nitrogen, oxygen, carbon dioxide, and others.
Seawater is a mixture of salt, minerals, and water.
Human blood is a complex mixture of cells, plasma, proteins, and other substances.

Pure Substances

Copper (Cu) wire is a pure substance
Glucose (C6H12O6) is a pure substance
Oxygen gas (O2) is a pure substance

Mixtures

Air is a mixture of gases
Seawater is a mixture of salts and water
Human blood is a mixture of cells, plasma, and other components

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Description

Test your knowledge on the differences between pure substances and mixtures. This quiz covers examples such as copper wire, glucose, air, and seawater. Understand the distinctions and characteristics of each category.