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30 Cards in this Set

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Anything that has mass and take up space
Matter
State that energy cannot be created or destroyed but can be changed from one form to another
Law of Conservation
The SI base unit used to measure the amount of a substance whose number of particles is the same as the number of atoms of carbon in exactly 12 gram of carbon-12
Mole
The smallest unit of an element that maintains the properties of that element
Atom
the smallest unit of a substance that keeps all of the physical and chemical properties of that substance; it can consist of one atom or two or more atom bonded together.
Molecule
a substance that cannot be separated or broken down into simpler substances by chemical means; all atoms of an element have the same atomic number. Can not be broken down chemically
Element
A substance made up of atoms of two or more different elements joined by chemical bonds
Compound
A measure of the amount of matter in an object; fundamental property of an object that is not affected by the forces that act on the object, such as the gravitational force
Mass
a measure of the gravitational force exerted on an object; its value can change with the location of the object in the universe
Weight
A property of matter that descrives a substance's ability to participate in chemical reactions
Chemical Property
A change of matter from one form to another without a change in chemical properties
Physical Property
A change that occurs when one or more substances change into entirely new substances with different properties
Chemical change
a change of matter from one form to another without a change in chemical properties
Physical change
the energy transferred b/w objects that are at different temperatures; energy is always transferred from higher-temperature objects to objects
Heat
A measure of how hot (or cold) something is; specifically, a measure of the average kinetic energy of the particles in an object
Temperature
a description of how close a measurement is to the true value of the quantity measured
Accuracy
the exactness of a measurement
Precision
good conductor of heat and electricity, metallic luster, shiny, malleability, ductibility, most exist solid in room temperature
Metal
ability to form into different shapes by hammering
Malleable
ability to be drawn into "wire" form
ductile
have both non-metal and metal characteristic, is brittle, metallic luster and poor conductor
Semi-Metal
wide range of characteristics, poor conductor of heat
Non-Metal
the physical forms of matter, which are solid, liquid, gas
States of Matter
definite shape and volume, fixed atoms, regular geometric patter
solid
no definite shapes but definite volume
liquid
no definite shape or volume, random particle motion
gas
a sample of matter, either a single element or a single compound, that has definite chemical and physical properties
Pure Substance
A combination of two or more substances that are not chemically combined
Mixture
Describes something that has a uniform structure or composition throughout (pure mixed)
Homogeneous
composed of dissimilar componet (uneven mixed)
Heterogeneous