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What is matter made up of?
Matter is made up of tiny particles
Describe the particles
The particles are in constant motion because of the energy it contains
There are forces of attraction and repulsion between the particles
there are empty spaces between the particles
What is the kinetic theory of matter
The theory dealing with motion of particles
The amount of kinetic energy held in matter is determined by
Temperature and state of matter
Speed of diffusion is determined by
Temperature
State of matter
Relative molecular mass of particles
What is an atom?
An atom is the smallest particle that cannot be broken down by chemical means
What is a molecule?
A molecule is a particle that contains two or more atoms
What is an ion?
An ion is an atom or group of atoms that can be positively charged or negatively charged
Example of diffusion in liquid
Potassium manganate (VII) crystals dissolve in water to give a uniformly purple solution
Diffusion in gases
Add a swab with concentrated hydrochloric acid and another with concentrated ammonia solution to separate ends of a glass tube and leave horizontal then particles collide and react to form a white solid, ammonium chloride
The white ammonium chloride solid is formed closer to the hydrochloric acid
Speed of diffusion calculation
Distance/time
Describe a selectively permeable membrane
It has tiny pores large enough for water to pass through but too small for the solute particles to pass through
What is Brownian Motion
Brownian motion is the constant and irregular motion of particles
How is matter converted from one state to another
Matter is converted from one state to another by changing the amount of energy of the particles