Chemical Reactions Unit 2. Vocabulary Terms Property Physical Property Chemical Property ...
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Transcript of Chemical Reactions Unit 2. Vocabulary Terms Property Physical Property Chemical Property ...
Chemical Reactions
Unit 2
Vocabulary Terms
Property Physical Property Chemical Property Physical Change Chemical Change Density Boiling Point Melting Point State
Liquid Gas Solid Condensation Deposition Sublimation Vaporization
A characteristic of a substance that can be observed.
Property
Characteristics that can be observed, using the five senses, without changing or trying to change the composition of a substance.
Physical Property
Examples of Physical Properties
Luster Malleability (the
ability to be hammered into a thin sheet)
Ductility (the ability to be stretched into wire)
Melting Point Boiling Point
Solubility Color Odor Taste Texture Flexibility Viscosity
Characteristic that cannot be observed without altering the sample.
Chemical Property
FlammabilityAbility to rustReactivity with vinegar
Examples of Chemical Properties
Change in which the form or appearance of matter changes, but not its composition.
Physical Change
Types of Physical Changes
Examples
Change in shape Change in size Change in phase
How it may happen
Grinding Cutting Crushing Bending Breaking Heating/Cooling
Change in which the composition of a substance changes.
Chemical Change
BurningRustingTarnishingDecomposing
Types of Chemical Changes
A color changeAn odor changeFormation of a precipitate (you mix two liquids and make a solid)
Gas is formed (bubbles)Changes in physical properties.
Evidence of a Chemical Change
Quiz Time
What type of reaction is most likely occurring here?
Quiz Time
What type of reaction is most likely occurring here?
Quiz Time
What type of reaction is occurring here?
Mass of an object divided by its volume.
Can be used to identify a substance
The density of water is 1.0g/mL
Density
The temperature in which a liquid becomes a gas.
Boiling Point
The temperature in which a solid becomes a liquid.
Melting Point
There are three states of matter:Solid LiquidGas
State
Matter with a definite volume but no definite shape that can flow from one place to another.
Liquid
Matter that does not have a definite shape or volume; has particles that move at high speeds in all directions.
Gas
Matter with a definite shape and volume; has tightly packed particles that move mainly by vibrating.
Solid
Let’s see what that looks like…
Change of matter from a gas to a liquid state.
Condensation
The process by which a gas changes into a solid.
Deposition
The process by which a solid changes directly into a gas.
Sublimation
The process by which matter changes from a liquid state to a gas state.
Vaporization