Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
30 Cards in this Set
- Front
- Back
|
The condition of matter existing as a solid, liquid, or gas |
Physical state |
|
|
A direct change of state from solid to gas |
Sublimation |
|
|
A direct change of state from gas to solid |
Deposition |
|
|
Matter having an indefinite composition and variable properties |
Heterogeneous mixture |
|
|
Matter having a definite composition, but variable properties from sample to sample; for example alloys and solutions |
Homogeneous mixture |
|
|
Matter having a definite composition and constant properties; for example, an element or compound |
Substance |
|
|
A homogeneous mixture of two or more metals |
Alloy |
|
|
A substance that can be broken down into simpler substances |
Compound |
|
|
A substance that cannot be broken down by chemical reaction |
Element |
|
|
The smallest particle that represents an element |
Atom |
|
|
An abbreviation for the name of a chemical element |
Chemical symbol |
|
|
An element that is generally shiny in appearance, has high density, high melting point, and is a good conductor of heat and electricity |
Metal |
|
|
The property of metal that allows it to be machined into a foil |
Malleable |
|
|
The property of metal that allows it to be drawn into a wire |
Ductile |
|
|
An element that is generally dull in appearance, has low density, low melting point, and is not a good conductor of heat and electricity |
Nonmetal |
|
|
An element that is generally metallic in appearance and has properties midway between those of a metal and a nonmetal |
Semimetal |
|
|
A number that identifies a particular element |
Atomic number |
|
|
A chart that arranges elements according to their properties |
Periodic table |
|
|
The principle that states a compound always contains the same elements in the same proportion by mass |
Law of definite composition |
|
|
A single particle composed of two or more nonmetal atoms |
Molecule |
|
|
An abbreviation for the name of a chemical compound that indicates the number of atoms of each element |
Chemical formula |
|
|
A characteristic of a substance that can be observed without changing the chemical composition |
Physical property |
|
|
A characteristic of a substance that cannot be observed without changing the chemical formula |
Chemical property |
|
|
A modification of a substance that alters it's chemical composition |
Chemical change |
|
|
A modification of a substance that does not alter it's chemical composition |
Physical change |
|
|
The stored energy that matter possesses owing to its position or composition |
Potential energy |
|
|
The energy associated with the mass and velocity of a particle |
Kinetic energy |
|
|
The law that states mass cannot be created or destroyed |
Law of conservation of mass |
|
|
The law that states energy cannot be created or destroyed |
Law of conservation of energy |
|
|
The law that states the total mass and energy in the universe is constant |
Law of conservation of mass and energy |
