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Chemistry Test Chemistry Test Reassessment ReviewReassessment Review
Make sure you click “Slideshow” then Make sure you click “Slideshow” then choose “From Beginning” to view the choose “From Beginning” to view the
animations.animations.
Complete the notes worksheet as you Complete the notes worksheet as you go through the PowerPoint.go through the PowerPoint.
PropertyProperty►Is a Is a
description of description of an objectan object
The tree is TALLThe tree is GREEN
If struck by lighting, the tree could catch FIRE (BURN)
Physical PropertiesPhysical Properties
► Are determined by the use of the Are determined by the use of the ..
► They are a They are a of an of an object.object.
fivesenses
description
Examples of Physical Examples of Physical PropertiesProperties
Color
Smell
Taste
HardnessState of MatterBoiling, Freezing, or Melting Point
Examples of Physical Examples of Physical PropertiesProperties
Density
Mass
Volume
Malleability (the ability to be molded)Solubility (the ability to be dissolved)
Chemical PropertiesChemical Properties
► Are determined by Are determined by a substance’s a substance’s ability to ability to
with other with other substances.substances.
react
Examples of Chemical Examples of Chemical PropertiesProperties
•The ability to react with
-
-
-
-
•The ability to react with
•The ability to catch fire ()
air
rust
tarnishcorrode
rot
water/acids
flammability
Physical or Chemical Physical or Chemical Property?Property?
► Ability of gun Ability of gun powder and fire to powder and fire to explode.explode.
Chemical Property
Physical or Chemical Physical or Chemical Property?Property?
► The color of a sunset.The color of a sunset.
Physical Property
Physical or Chemical Physical or Chemical Property?Property?
► The ability of a The ability of a nail to rust.nail to rust.
Chemical Property
Physical or Chemical Physical or Chemical Property?Property?
► The shape of a The shape of a leaf.leaf.
Physical Property
Physical or Chemical Physical or Chemical Property?Property?
► The ability of The ability of wood to burn.wood to burn.
Chemical Property
Physical or Chemical Physical or Chemical Property?Property?
► The hardness of a The hardness of a diamond.diamond.
Physical Property
Physical or Chemical Physical or Chemical Property?Property?
► The volume of The volume of your coke.your coke.
Physical Property
Physical or Chemical Physical or Chemical Property?Property?
► The mass of two camels. The mass of two camels.
Physical Property
Physical ChangesPhysical Changes► a change that occurs a change that occurs
changing changing the the of the of the substance.substance.
► ____ new substances are ____ new substances are formed.formed.
withoutidentity
No
Examples of Physical Examples of Physical ChangesChanges
► Change in size, Change in size, shape, or colorshape, or color
► Pencil shavingsPencil shavings► Torn PaperTorn Paper► Crushed iceCrushed ice► Sugar dissolved in Sugar dissolved in
waterwater
Chemical ChangesChemical Changes► a change that occurs a change that occurs
that that the the of a of a substance to change; substance to change; something something is is formed.formed.
► New substances with New substances with properties properties
are formedare formed
causesidentity
new
new
Evidence of Chemical Change
•New ________appears
•Bubbbles or ________
•Precipitate forms (____ material)
•_____ is produced
•______ is produced
•______ is given off
•Difficult or impossible to __________
color
fizzing
solid
reverse
Heat
Light
Sound
Reactions with AcidReactions with Acid
► Vinegar + baking Vinegar + baking soda = release of soda = release of Carbon Dioxide Carbon Dioxide GasGas
Reactions with Reactions with OxygenOxygen
► OXIDATIONOXIDATION
► Iron + Oxygen = Iron + Oxygen = rustrust
Reactions between Reactions between SubstancesSubstances
► Sodium + chloride = saltSodium + chloride = salt
► Silver + sulfer in the air = Silver + sulfer in the air = tarnishtarnish
Other ExamplesOther Examples►Wood burningWood burning►Metal rustingMetal rusting►Food digestingFood digesting►Gasoline burningGasoline burning►Cake bakingCake baking
Physical or Chemical Physical or Chemical Change?Change?
►Water Water evaporates from evaporates from the ocean.the ocean.
Physical or Chemical Physical or Chemical Change?Change?
►The yolk of an The yolk of an egg, which egg, which contains sulfur, contains sulfur, causes tarnish causes tarnish to form on to form on silver.silver.
Physical or Chemical Physical or Chemical Change?Change?
►The ice on a lake The ice on a lake melts to become melts to become water in the water in the lake.lake.
Physical or Chemical Physical or Chemical Change?Change?
►Charcoal in a fire Charcoal in a fire turns to ash turns to ash after several after several hours.hours.
Physical or Chemical Physical or Chemical Change?Change?
►A pencil is A pencil is sharpened in a sharpened in a pencil pencil sharpener, sharpener, leaving behind leaving behind shavings.shavings.
Physical or Chemical Physical or Chemical Change?Change?
►A battery makes A battery makes electricity to electricity to turn on a turn on a flashlight.flashlight.
Physical or Chemical Physical or Chemical Change?Change?
►A bicycle rusts when left in the rain.A bicycle rusts when left in the rain.
Physical or Chemical Physical or Chemical Change?Change?
►A shirt is A shirt is accidentally torn accidentally torn in the washing in the washing machine.machine.