Studied by 27 people
chemical
any substance that has a definite composition
chemical reaction
the process by which one or more substances change to produce one or more different substances
states of matter
the physical forms of matter, which include solid, liquid, gas, and plasma
Reactant
a substance or molecule that participates in a chemical reaction
product
a substance that forms in a chemical reaction
Matter
Anything that has mass and takes up space
Volume
A measure of the size of a body or region in three-dimensional space
Mass
A measure of the amount of matter in an object
Weight
A measure of the gravitational force exerted on an object.
quantity
something that has magnitude, size, or amount
unit
a quantity adopted as a standard of measurement
conversion factor
a ratio derived from the equality between two different units that can be used to convert from one unit to the other
physical property
a characteristic of a substance that does not involve a chemical change, such as density, color, or hardness
Density
the ratio of the mass of a substance to the volume of the substance
chemical property
a property of matter that describes a substance's ability to participate in chemical reactions
atom
the smallest unit of an element that maintains the properties of that element
pure substance
a sample of matter, either a single element or a single compound, that has definite chemical and physical properties
element
a substance that can't be separated or broken down into simpler substances by chemical means
molecule
the smallest unit of a substance that keeps all of the physical and chemical properties of that substance
compound
a substance made up of atoms of two or more different elements joined by chemical bonds
mixture
a combination of two or more substances that are not chemically combined
homogeneous
describes something that has a uniform structure or composition throughout
heterogeneous
composed of dissimilar components
physical change
change in 1 or more physical properties without a change to chemical properties
chemical change
changes into entirely new substance
chemical properties
reactivity, flammability, toxicity, corrosive
physical properties
color, size, melting point, boiling point, density, ductile
chemistry
study of the compositions of matter and the changes that matter undergoes
macroscopic
substances that can be seen or touched
microscopic
smaller particles that make up matter, need microscope to been seen
solid, liquid, gas, plasma
what are the 4 states of matter?
meter
what is the SI base unit for length?
liter
what is the SI base unit for liquid volume?
kilogram
what is the SI base unit for mass?
d=m/v
what is the formula for density?
Kelvin
what is the SI base unit for temperature?
diatomic
includes two of the same element
T
T/F: elements are pure substances
suspension
a mixture containing particles that settle out if left undisturbed
colloid
mid-size particles that do not settle out
solution
a mixture containing atoms, ions, or molecules fully dissolved
solvent
dissolving medium
solute
"stuff" being dissolved
Note 
Flashcard (32)