Intro to Chemistry flashcardsmatter anything that has mass and takes up space physical property characteristic of a substance observed without changing it into another substance 00:41 01:22 solid definite shape and definite volume liquid definite volume but indefinite shape gas indefinite shape, in...
matter anything that has mass and takes up space physical property characteristic of a substance observed without changing it into another substance 0041 0122
matter - anything that has mass and takes up space
physical property - characteristic of a substance observed without changing it into
another substance
solid - definite shape and definite volume
liquid - definite volume but indefinite shape
gas - indefinite shape, indefinite volume
plasma - state of matter that occurs when energy such as electricity or heat is applied to
a gas.
mass - amount of matter in an object
volume - the amount of space an object takes up
density - measure of the mass in a given volume
weight - measure of the pull of gravity on an object
melting/freezing point - the temperature at which a substance changes from a solid to a
liquid or a liquid to a solid
boiling point - the temperature at which a substance changes from a liquid to a gas
melting - the process of changing from a solid to a liquid
freezing - the process of changing from a liquid to a solid
evaporation - the process of changing from a liquid to a gas
condensation - the process of changing from a gas back into a liquid
sublimation - the process of changing from a solid directly to a gas without becoming a
liquid
, chemistry - the study of matter and how it changes
substance - single kind of matter that is pure
chemical property - a characteristic of a substance that describes its ability to change
into different substances
element - substance that cannot be broken down into any other substances by chemical
or physical means
atom - basic particle from which all elements are made
chemical bond - force of attraction between two atoms
molecule - group of two or more atoms held together by chemical bonds
compound - substance made of two or more elements that are chemically combined in
a set ratio
chemical formula - shows the elements in the compound and the ratio of atoms
mixture - made of two or more substances that are together in the same place but not
chemically bonded
heterogeneous mixture - you can see the different parts and they can be easily
separated
homogeneous mixture - so evenly mixed that you cannot see the different parts
Density equation - density = mass/volume
International System of Units - a complete metric system of units of measurement for
scientists
physical change - alters the form/appearance of matter, but no new substance formed
chemical change - new substance formed
law of conservation of mass - matter is neither created or destroyed in any chemical or
physical change
temperature - measure of how hot or cold something is
thermal energy - total energy of the motion of all of the particles in an object
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