2.1 Basic Concepts of Matter

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The arrangement of particles in matter is related to temperature and pressure.

Which of the following pairs have the correct state at room temperature?

Difficulty Level: Medium

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Which of the following best describes the kinetic theory of matter?


I.		Particles in the matter are always vibrating and colliding with each other

II.		Particles move in an orderly manner

III.		The matter is made up of tiny and discrete particles

IV.		There are attractive forces between particles of matter

Difficulty Level: Medium

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Characteristics	X	Y	Z
Shape	Follows the container	Fixed	Fills the whole container
Movement of particles	Particles moves randomly and slowly.	Particles only vibrates at fixed position	Particles move randomly and rapidly in all directions.
Forces of attraction between particles	Moderate	Very strong	Very weak

What is X, Y and Z?

Difficulty Level: Easy

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Particle forming matter can be further divided into three categories as stated in the diagram.

Which of the following matters suits to be in the molecule category?

Difficulty Level: Medium

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Which of the following is a water molecule?

Difficulty Level: Easy