What’s the Matter?. Matter Matter is anything that takes up space and has mass.
Matter Definition Anything that has mass and takes up space (has volume) Matter is made up of...
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Transcript of Matter Definition Anything that has mass and takes up space (has volume) Matter is made up of...
![Page 1: Matter Definition Anything that has mass and takes up space (has volume) Matter is made up of atoms.](https://reader036.fdocuments.us/reader036/viewer/2022081513/5a4d1b947f8b9ab0599c3253/html5/thumbnails/1.jpg)
MATTER &
CHANGE
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Matter Definition Anything that has mass and takes
up space (has volume) Matter is made up of atoms.
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Example: Phase Changes
Physical Change
A change in a substance that does not involve a change in the identity of the substance.
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Other Physical Changes
Reversible Boil Freeze Melt Condense
IrreversibleBreakSplitCutCrush
Physical changes can be classified as reversible or irreversible.
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STATES OF MATTER
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States of Matter Solid
definite volume definite shape not easily compressed particles packed in fixed
positions
Solid Copper
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V1 Solid Videos: Video 1
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SolidsVideo 2 V2 Structure of ice
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States of Matter
Liquid definite volume indefinite shape not easily compressed particles close together, but not in
fixed positions
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Characteristics of Liquids
Flow - takes the shape of its container
Definite volume - intermolecular attractions keep particles close together
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V3 Video 3 Liquid
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States of Matter
Gas indefinite volume indefinite shape easily compressed particles are at great distances
from one another Vapor: describes the gaseous
state of a substance that is generally a liquid or solid at room temperature. (ex: water vapor)
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Characteristics of Gases
Expand to fill container random motion, no
attraction Are fluid (like liquids)
no attraction Very low densities.
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Characteristics of Gases Can be compressed
Almost no volume = lots of empty space
Flow Undergo diffusion
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V4 Gas State Video 4
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States of Matter
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States of Matter
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Phase Changes
Melting Point (Freezing): The temperature at which a solid changes to a liquid OR a liquid changes to a solid
Boiling Point: The temperature at which a liquid changes to a gas OR a gas changes to a liquid.
Sublime: When a substance changes from a solid phase directly to a gas phase without becoming liquid - example, CO2
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V5 Evaporation & Condensation
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Phase Change – Condensation -- Gas to LiquidEvaporation – Liquid to gas
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Vaporization Vaporization - the conversion of a liquid
to a gas or vapor Evaporation - vaporization when a liquid
is NOT boiling Vapor Pressure - force exerted by a gas
above a liquid
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Vaporization vs. Condensation
How does temperature affect vapor pressure?
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N2
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What’s the Boiling Point?
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Phase Changes
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Boiling & Melting points Every substance has a unique boiling
& melting .
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Different Physical Properties of MatterHelium Sulfur hexafluoride Density = 0.1786 g/ l Melting point = -
272.20 C Boiling Point =-
268.93 C Gas at room
temperature
Density =6.17 g/ L Melting Point =-78C Boiling Point = -64 CGas at room temperature
http://www.youtube.com/watch?v=52UAEQfMTtU
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Physical Properties table
1. What substance(s) is a gas at 0 °C?
2. What substance(s) is a solid at 100°C?
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Physical Properties table
What substances is a solid at -125 ° C?