Post on 01-Jan-2016
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Matter
Chapter 2
Matter has ___________ and takes up __________________.mass space (volume)
What are some physical properties of matter that we can use to identify an object?1.2.3.4.
5.
ColorOdorMassThermal conductivity: the ability to transfer thermal energy (heat) from one area to another
State: the physical form (solid, liquid, or gas)
Solubility – the ability to dissolve in another substance
Ductility: the ability to be pulled into a wire
Malleability: the ability to be pounded into thin sheets6.
7.
8.
Density – the mass per unit volume
D = __M__ V
9.
a. The density of a particular substance is always ________________at a given ____________________ and _____________________.
the sametemperature pressure
b. The density of one substance is usually ___________________ from the that of another substance.
c. The size of the sample does _______ affect its density!
different
NOT
Example: Which sample of gold is more dense?
________________________________________________________________________
The two sampleshave the SAMEdensity!!!!
V =__M__ D
M = D x V
Density of liquids: ________________________ ________________________ ________________________ ________________________
In a mixture of liquids that do not dissolve in each other, the least dense liquid will float to the top.
Chemical Properties of MatterChemical properties of matter describe a substance based on its abilityto __________________________________________ with different properties.change into a new substance
Examples of chemical properties:1. Flammability - ___________________________ Nonflammability - _______________________
the ability to burn
2. Reactivity - _____________________________ _____________________________
When 2 substances get together,something happens.
Examples:
____________Rust _______________Bubbles
The inability to burn
____________Heat
Physical Properties vs. Chemical Properties
How do we tell whether a change in something is physicalor chemical?
Physical changes _____________________________
Chemical changes ____________________________ ____________________________
keep the same physical properties
create new substances with different properties
Ex: Mixing
How can you separate these back to their original form?Sugar waterSalad
Label the following as Physical or Chemical changes.1. Salt dissolving in water __________________2. Oxygen in the air turns iron to rust _________________3. Bacteria give off acids which makes milk turn sour ____________________4. A piece of wood is sawed in half ____________________5. A piece of wood is burned in a campfire ________________6. A cheap ring turns your finger green _________________7. Butter is melted and poured over popcorn ______________8. A chunk of aluminum metal is flattened into aluminum foil ______________________9. A raw egg is boiled ______________________10. Gasoline making a car engine run __________________11. Pennies are melted and turned into copper wire __________________________12. A metal spoon next to a heater gets warm. _________________________
PhysicalChemical
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PhysicalChemical
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Matter
Chapter 2
Matter has ___________ and takes up __________________.)
What are some physical properties of matter that we can use to identify an object?1.2.3.4.
5.
Solubility :
Ductility:
Malleability:6.
7.
8.
Density:
D = __M__ V
9.
a. The density of a particular substance is always ________________at a given ____________________ and _____________________.
b. The density of one substance is usually ___________________ from the that of another substance.
c. The size of the sample does _______ affect its density!
Example: Which sample of gold is more dense?
________________________________________________________________________
V =__M__ D
M = D x V
Density of liquids: ________________________ ________________________ ________________________ ________________________
Chemical Properties of MatterChemical properties of matter describe a substance based on its abilityto __________________________________________ with different properties.
Examples of chemical properties:1. Flammability - ___________________________ Nonflammability - _______________________
2. Reactivity - _____________________________ _____________________________
.
Examples:
____________ _______________ ____________
Physical Properties vs. Chemical Properties
How do we tell whether a change in something is physicalor chemical?
Physical changes _____________________________
Chemical changes ____________________________ ____________________________
Ex: Mixing
How can you separate these back to their original form?Sugar waterSalad
Label the following as Physical or Chemical changes.1. Salt dissolving in water __________________2. Oxygen in the air turns iron to rust _________________3. Bacteria give off acids which makes milk turn sour ____________________4. A piece of wood is sawed in half ____________________5. A piece of wood is burned in a campfire ________________6. A cheap ring turns your finger green _________________7. Butter is melted and poured over popcorn ______________8. A chunk of aluminum metal is flattened into aluminum foil ______________________9. A raw egg is boiled ______________________10. Gasoline making a car engine run __________________11. Pennies are melted and turned into copper wire __________________________12. A metal spoon next to a heater gets warm. _________________________