Flashcards in 00 Deck (47):
What is a qualitative observation?
Those not involving numbers
A universally accepted explanation of the problem
States what general behavior is observed to occur naturally
State of matter with a definite shape and volume, particles are packed tightly together and only vibrate gently around fixed positions
State of matter with no definite shape (takes shape of container) but a definite volume. Particles are free to move
Have neither a definite shape nor a definite volume. Particles spread apart and fill all of the space in the container available to them
Solid to liquid
Liquid to gas
Boiling or evaporation
Gas to liquid
Solid to gas
Gas to solid
Reverse sublimation or deposition
Liquid to solid
Freezing, solidifying, or crystallizing
When a substance is heated it ________ energy
Change where the atoms of a substance are rearranged to form new substances
Formation of a solid during a chemical change that was not there before
A substance that cannot be broken down into other substances by chemical means
Formed when elements bond together, always have a fixed composition
Has varying compositions, is made up of a number of pure substances
What are pure substances?
Elements or compounds
Mixture uniform in composition
Mixture that has separate distinct regions
What is the equation to convert Celsius to Kelvin?
T in K= T in C + 273
What is the equation to turn Kelvin to Celsius?
T in C= T in K -273
The ratio of the mass of an object to its volume
Density x volume
What is the equation for percentage error?
Absolute value of
(actual value)-(calculated value)/(actual value) X 100
What is the base unit for mass?
What is the base unit for length?
What is the base unit for time?
What is the base unit for amount of substance?
What is the base unit for temperature?
What is the symbol for kilogram?
What is the symbol for meter?
What is the symbol for second?
What is the symbol for mole?
What is the symbol for kelvin?