Matter Quiz Flashcards
Compouds
Substance which cannot be decomposed into other substances by a chemical change.
Mixtures
2 or more different substances are mixed.
Can either be elements or compounds.
Weight ratios are not fixed.
Physical Properties
Anything you can see, touch, hear, smell.
Chemical Properties
Social Skills; how it reacts with other substances.
Extensive Properties
Depends on amount of matter i.e. weight
Intensive Properties
Does not depend on the amount of matter i.e. color, boiling point
Measurement
Never exact; some degree of uncertainty
Chemical Change
Change in composition of matter; energy usually involved; cannot be changed back.
Physical Change
No change is composition of matter.
Atom
Smallest component of an element; characterized by protons, neutrons, and electrons
Exothermic
Evolution of heat
Endothermic
Absorption of heat
Heat of Fusion
Amount of heat needed to melt one gram of a solid with no change in temperature.
Specific Heat
Amount of heat needed to raise the temperature of the substance by 1 degree C
Solid
low kinetic and particle energy; particles close together
Liquid
Medium potential and kinetic energy
Gas
high kinetic and particle energy; particles far apart
Plasma
high particle energy; really high kinetic energy; particles far apart
Density
mass / volume
Matter
Anything that takes up space, has mass and exhibts the properties of inertia.
Elements
Substance which cannot be decomposed into 2 or more parts by chemical change
Alchemy
Pre-chemistry; study of turning everything into gold
Law of Conservation Energy
Energy cannot be created or destroyed
Inertia
tendency to resist change in motion
Accuracy
how close to accepted value
Precision
how close measurements are to each other
Length
measured in meters with meter stick
- centimeters 1/100
- millimeters 1/1000
- kilometers x 1000
Volume
amount of space an object occupies
measured in liters with graduated cylinder
-mililiters 1/1000
-cubic centimeters- cm^3 1/1000
Mass
amount of matter an object holds.
measured in grams with Triple Beam Balance
-kilograms x 1000
Temperature
TBD
