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Chemistry: Classification of Matter and Substances

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Chemistry: Classification of Matter and Substances

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Questions and Answers

What is the primary characteristic that distinguishes a pure substance from a mixture?

Texture

Odour

Colour

Composition (correct)

Which of the following is an example of a heterogeneous mixture?

Air

Water

Blood

Sand and water (correct)

What is the difference between metals and non-metals?

Metals are found only in nature, non-metals are synthesized in lab

Metals are good conductors of electricity, non-metals are poor conductors (correct)

Metals are found in solid state, non-metals are found in liquid state

Metals are shiny, non-metals are dull

Which of the following elements is a metalloid?

<p>Silicon</p> Signup and view all the answers

What percentage of the Earth's atmosphere is composed of nitrogen?

<p>78%</p> Signup and view all the answers

Chemistry: Classification of Matter and Substances

Choose a study mode

Podcast

Questions and Answers

What is the primary characteristic that distinguishes a pure substance from a mixture?

Which of the following is an example of a heterogeneous mixture?

What is the difference between metals and non-metals?

Which of the following elements is a metalloid?

What percentage of the Earth's atmosphere is composed of nitrogen?

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