Chemistry Flashcards
The three states that matter can exist as are…
Solid, liquid and gas
Any substance that occupies space and has mass
Matter
The two kinds of matter are…
Substance and mixture
Matter is made up of…
tiny, indiscrete particles such as atoms, molecules or ions
A group of two atoms that are chemically bonded together
Molecule
The smallest particle of an element that can participate in a chemical reaction
Atom
This kind of matter CAN’T be separated by physical or mechanical means
Substance
A substance made up of identical atoms; cannot be broken down into simpler substances by ordinary chemical methods
Element
Several pure substances combined PHYSICALLY but not chemically; physically separable; different parts of a mixture keep their own properties when put together
Mixture
Different components of this mixture are evenly mixed and look consistent throughout
Homogenous mixture
Components of this mixture are visible
Heterogenous mixture
A substance containing two or more elements joined together by chemical bonds
Compound
A homogenous mixture involving a solute and a solvent
solution
A homogenous mixture of two elements, one of which is a solid metal
Alloy
Soluble materials dissolve ________ in a solvent
completely
A sample of matter with the same composition throughout
homogenous substance
The substance that gets dissolved
solute
The liquid which the solute dissolves in
solvent
A solution is saturated when…
…no more solute can be dissolved while the temperature is constant
a heterogenous mixture composed of a liquid and a solid wherein the solid doesn’t usually dissolve
suspension
Mixture which doesn’t have uniform properties and composition
heterogenous mixture
T/F suspensions can’t be filtered
F, suspensions can be filtered
T/F Regular agitation is need to keep mixture fairly mixed in a solution
T
T/F suspensions are clear
F, they are cloudy
T/F emulsions are colloids
T
T/F the smaller particles settle at the bottom of a suspension
F, the larger particles settle
T/F suspensions are a mixture of two phases
T
Properties of matter that don’t change the chemical composition of a substance
Physical properties
A heterogenous mixture of two or more liquids wherein one ends up as very tiny droplets within the other
emulsion
a heterogenous mixture that looks very uniform yet the solute is not completely dissolved
colloid
Physical properties that depend on the amount of substance
Extensive properties
Physical properties that don’t depend on the amount of substance
Intensive properties
Intensive property pertaining to the scent of a substance
odor
intensive properties are _________ properties
physical
Properties of matter that change the chemical nature of a substance
chemical properties
Intensive property that refers to the ability of a substance to be drawn into wires
ductility
Intensive property pertaining to the shade, tiny, tone of a substance
Color
Intensive property that describes how shiny a substance is
Luster
Intensive property pertaining to the temperature at which the solid and liquid phases of a substance are in equilibrium
Melting/freezing point
Intensive property that refers to the ability of a substance to be beaten into sheets
malleability
Intensive property that refers to the ability to conduct electricity
Conductivity
Extensive property that refers to the measure of the amount of matter
Mass
Intensive property that refers to the toughness of a substance
hardness
Intensive property pertaining to the temperature at which the vapor pressure of a liquid is equal to the atmospheric pressure
Boiling point
Extensive property that refers to the measured distance of an object
length
Intensive property pertaining to the measure of how compact a substance is
Density
Extensive property that refers to the measure of the gravitational force of the earth on an object
Weight
Chemical property that is a measure of how easily a substance will burn or ignite
Flammability
Extensive property that refers to the measure of the amount of space occupied by an object
Volume
Chemical property that refers to the degree which a substance can damage an organism
Toxicity
Solid to gas
Sublimation
Chemical property that is a measure of how much a substance does not change over time
Chemical stability
Chemical property that refers to the amount of time required for a quantity of a substance to fall to half its value
Half- life
Liquid to solid
Freezing
Gas to solid
Deposition
Solid to liquid
Melting
Liquid to gas
Vaporization
Gas to liquid
Condensation
