Classifications of Matter
What phase of matter has a fixed volume but no fixed shape?
Liquid
What is the name of a form of matter that has a definite composition and distinct properties?
Pure Substance
Which property DOES depend on the amount of matter?
An extensive property
How many sig figs are in
104.5 ?
4 Sig Figs
How many meters in 3 kilometers?
3,000 meters
1 kilometer= 1,000 meters
What phase of matter has no fixed shape or volume?
What is the name of a mixture that is not uniform throughout?
Heterogeneous Mixture
Physical or chemical: What type of change results in a change in composition?
A Chemical Change
How many sig figs in
30,045 ?
5 Sig Figs
How many feet are in 3 miles?
Hint: 1 mile= 5280 feet
15,840 feet
What phase of matter has both a fixed shape and a fixed volume?
Solid
True or False: A mixture cannot be separated by physical means into its components?
False! A mixture can be separated AND nothing will change about the identities of the components
What property DOES NOT depend on the amount of matter?
An INtensive property... think INdependent
How many sig figs in
.005 ?
1 Sig Fig
How many meters are in 4 centimeters?
.04 Meters
1 centimeter= .01 meter
True or False: You can change a substance from one state to another without changing its identity?
True
What is an example of a heterogeneous mixture?
Oil and vinegar, salt and pepper, trail mix, sugar and sand, etc
What kind of property can be observed and measured without changing the identity of the substance?
Physical Property
How many sig figs in
5.200
4 Sig Figs
How many seconds are in 2.5 hours?
9,000 seconds
1 hour= 60 minutes and 1 minute = 60 seconds
or
1 hour= 3600 seconds