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Mrs R IS C2

DefinitionTerm
Substance in which all the atoms in a sample are alike, cannot be broken down element
Substance made up of the chemically combined atoms of 2 or more elements compound
Material made up of elements or compounds that are stirred together but not chemically combined mixture
2 categories of mixtures heterogenous and homogenous
A mixture in which different materials can be easily seen, easily separated heterogenous
A mixture in which materials are blended evenly so the mixture is the same throughout homogenous
Any characteristic of a material that can be observed without changing the identify of the material itself physical property
Changes in the size, shape, color or state of matter physical change
characteristic of a substance that indicates whether it can undergo a specific chemical change chemical property
change of a substance in a material into a new substance chemical change
Matter is neither created nor destroyed during a chemical change Law of Conservation of Mass
When a chemical change takes place, you end up with _______ amount of mass that you started with the same
ability to change or move matter energy
when a liquid changes to a gas condensation
a change that does NOT cause a change in the composisiton of a substance physical change
blend of 2 or more pure substances tha do not chemically combine mixture
2 or more liquids that are able to dissolve into each other miscible
2 or more liquies that do not mix into each other immiscible
anything tha has mass and occupies space matter
smallest particle that has the properties of an element atom
properties of a compound are ______ _____ the properties of the individual elements different than
2 or more atoms chemically combined molecule
what is the difference between a molecule and a compound? compound has 2 elements
shorthand way of respresenting chemcial substances, gives ratios of elements in a molecule chemical formula
shows the number of atomsof the element in a compoun subscript
shows the number of molecules coefficient
matter with a fixed composition and definite properties pure substance
all matter is made up of tiny particles in constant motion kinetic theory ofmatter
if the temperature increases, the motion of the particles will ___ increase
if the mass of the particles is increases, the motion will ____ decrease
what are the 4 states of matter? solid, liquid, gas, plasma
definite shape and volume solid
particles are packed closely together, vibrate and rotate in place solid
definite volume, no definite shape liquid
liquid or gas fluid
resistance of a liquid to flow (thickness) viscosity
no definite shape or volume gas
can exert pressure on the sides of its container gas
pressure can cause it to contract gas
gas like mixture consisting of postively and negatively charged particles plasma
How can you change the state of a substance? by adding or taking away energy
when a liquid turns into a gas at the surface, absorbs energy Evaporation
when a solid changes directly into a gas, absorbs energy sublimation
When a liquid turns into a gas below the surface, absorbs energy boiling
gas turns into a solid, releases energy deposition
The ability of a substance to combine chemically with other substances reactivity
The ability of a substance to combine chemically with other substances melting point
The temperature at which a liquid becomes a gas below the surface boiling point
what is the boiling point of water? 100 degrees C
What is the freezing point of water? 0 degrees C
process of burning combustion
Process of separating liquids based on their different boiling points distillation
Using a screen or paper to separate a liquid from suspended solids filtering
Act of forming crystals (solid with rigid structure and repeating patterns) crystallization
mass / volume density
density of water g/ml or g/cm3
ml = ? cm3
Created by: mrsrutschilling
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