+
Related Flashcards
Cards In This Set
| Front | Back |
|
What is chemistry?
|
The study of the composition of matter
|
|
How do conceptual problems differ from numeric problems?
|
One doesn't involve calculations
|
|
Examples of matter
|
Anything that takes up space and has massheat is not mattersunlight is not time is not air is matter anything you can measure is matter
|
|
Difference between extensive and intensive
|
Ex- depend on amount of matter being measuredchanges occur in- depends on amount of the substance. NOTHING changes
|
|
Physical properties (can detect with senses)
|
Color, texture, boiling point, taste, density, phase, electricity
|
|
Which state of matter is vapor?
|
Gas but normally a solid or liquid at R.T.
|
|
Three states of matter
|
Solid- can't flow, definite shape and volume Liquid- can flow, definite volume, indefinite shapeGas- can flow, indefinite shape and volume
|
|
Difference between homogeneous and heterogeneous mixtures?
|
Homo- same composition throughout heter- not uniform
|
|
Chemical symbols
|
 Mmmm |
|
Identify compounds
|
2 or more molecules together (salt and water)
|
|
What do chemical symbols and formulas represent?
|
The type and number of elements present
|
|
Differences between chemical and physical changes
|
Physical- doesn't change chem composition chem change- new substance forms
|
|
Prefixes (Giga through Pico)
|
 Mmmm |
|
Characteristics of the temperature scales
|
Celsius- freeze 0 degrees and boil at 100 degreeskelvin- NO negatives freezing at 273.15 and piling 373.15 degrees
|
|
Conversions of temperature formula
|
K=C+273C= K-273
|
