Chemistry: Introduction to Matter Flashcards
anything that has mass and takes us space
Matter
the study of matter and how matter changes
Chemistry
a single type of matter that is pure
Substance
a substance that can not be broken down into any other substances by chemical or physical means
Elements
the basic particle of which all elements are made
Atom
a group of 2 or more ATOMS held together by chemical bonds
Molecule
two or more ELEMENTS chemically combines in a set ratio
Compound
force of attractions between two atoms
Chemical Bond
shows the elements in the compound and ratio of atoms
Chemical Formula
two or more substances that are together in the same place but not chemically bound
Mixture
a type of mixture that is evenly mixed
Homogenous Mixture
a type of mixture that you can see the different parts and can be easily separated out
Heterogeneous Mixture
the measure of the force of gravity on an object
Weight
the amount of matter in a object
Mass
the amount of space that matter occupies
Volume
the measure of mass of an object in a given volume
Density
the fact that matter is neither created nor destroyed in any chemical or physical change
Law of Conservation of Mass
a change in which energy is absorbed
Endothermic Change
a change in which energy is released
Exothermic Change
the measure of how hot or cold something is
Temperature
the total energy of motion of all the particles in an object
Thermal Energy
the energy stored in the chemical bonds between atoms
Chemical Energy
The things that a scientist may use to determine if a chemical change has occurred
Color change, Odor change, New substance forming, CANNOT be reversed
The 5 states of matter
Solid, Liquid, Gas, Plasma, BEC
Examples of physical properties
Hardness, Color, Flexibility, Temperature, Conductivity
Examples of chemical properties
Flammability, Oxidation, Combustion, Tarnishing, Electrolysis
CALCULATE DENSITY
Density = Mass divided Volume
Volume can be calculated by
LxWxH
