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HBSC2103 (Chemistry 1)by
Najmiyatul Fadilah Mohamad
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By the end of this topic, you should be able to:
1. Describe the concept of matter.
2. Identify the properties of the three states of matter.
3. Describe the states of matter and the kinetic particle
theory.
4. Discuss the changes of states using appropriate examples
andactivities.
5. Explain the formation of cloud and rain6. Conduct appropriate
investigations to explain the changes of
states of matter.
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Anything that hasMASS and occupiesspace.
MASS Is a measure of
quantity of materialin a given object
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Solids firm and have a definite form.
Liquids are not rigid.
Gases have no fixed shape and spread out to fill any
container.
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Physical properties characteristics that donot change the
identity and composition ofthe substance.
ColourOdourDensity
melting pointboiling pointhardness
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Fixed shape It is hard and the shape cannot be changed
easily.
Definite volume Can be measure but how?
Cannot be compressed exhibits a regular arrangement of particles
and it is rigid.
Do not flow easily when a solid is placed into a container, it
cannot completely
fill up the container. Instead, there will be spaces inbetween
the solid and the container.
Do you know that solids have definite size, mass andweight at a
given temperature?
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Do not have specific shapes of their own. take the shape of the
container they are in.
Have a definite mass and volume
Can flow when it is poured.
Cannot be compressed
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Have definite mass
No definite shape of their own.
No definite volume of their own.
Can flow easily and compressed into differenttypes or sizes of
containers
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PhysicalProperties
Solids Liquids ases
Mass Definite Definite DefiniteVolume Definite Definite Fill the
container
they are in
Shape Definite Take the shapeof the container
they are in
Take the shapeof the container
they are inAbility to flow Unable to flow Flows Flows easily
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Refer to Table 1.2
What is diffusion?
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A reverse process of melting.Liquid changes to its solid state
when it iscooled at a certain temperature and pressure.
heat energy is released and not absorbed
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Process where atoms or molecules, which arein liquid state, gain
sufficient energy to enterthe gaseous state.
Heat energy is absorbed.
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the process where gas or vapour changes toits liquid state when
cooled at certaintemperature and pressure.
Heat energy is released.
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the process where solid changes to vapour orgas, without going
through the meltingprocess
Solid state directly to gaseous state
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Experiment 1: The Boiling Point of Water
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![Pure Sciences [Express] Chemistry€¦ · Experimental Chemistry The Particulate Nature of Matter Formulae, Stoichiometry and the Mole Concept Electrolysis Energy from Chemicals](https://img.pdfslide.us/doc/110x75/5b149eb97f8b9a397c8df88f/pure-sciences-express-experimental-chemistry-the-particulate-nature-of-matter.jpg)
