Chemistry Vocab 2
Terms in this set (41)
Study of all matters make up, properties and structure, and how it changes
Ideas used to describe an object, whether words or numbers.
Matter with a fixed composition and uniform properties, no matter the source.
Pure substance that cannot be decomposed by ordinary chemical reactions.
Separate by chemical means.
One or two letter symbol for elements name.
Pure substance of two or more different elements bonded together.
Smallest unit of a pure substance, showing its properties, whether an element or a compound.
The symbols and numbers of elements in a molecule of a substance.
Combination of two or more pure substances. (Can be separated by physical means)
Properties are not uniform
Properties are uniformly spread out
When two liquids will dissolve in each other making a homogeneous mix.
All matter is made up of tiny particles with constant motion, based upon their size and temperature.
Solid, liquid gas, plasma
Gas like state which causes it to have electrons removed
Ability to change or move matter.
Change when heat must be added
Change when heat released
Can be seen without changing the composition of the substance.
Results in a substance forming new substances with different properties.
Going from a gas to a solid
Mass per unit volume of a substance
The force with which a fluid pushes up on a substance
A substance whose particles can flow around eachother
Resistance of a fluid to flowing
The ability of a substance to undergo chemical changes with other substances.
Doesn't change the materials identity
Does change the materials identity
Gas to liquid
Solid to gas
When two liquids mixed form a heterogeneous mixture.
Liquid to gas
ANything that has mass and occupies space
The smallest particle that has the properties of an element
The force exerted per unit area of a surface
Temperature at which solid becomes liquid
The temperature at which a liquid becomes a gas below the surface.
A material or an object that conducts heat, electricity, light, or sound.
Energy/mass cannot be created or destroyed in ordinary chemical/physical means (Energy only: can change from one form into another.)
The tendency of matter to change in shape, area, and volume in response to a change in temperature
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