Show:
2.1
2.2
2.3
2.4
Terms
100
the forms of matter
What are solid, liquid, gas ?
100
Liquids.
What state are most solutions in: liquid, gas, or solid?
100
carbon is an element
Why won't carbon break down into a simpler substance?
100
the ability of a substance to undergo a specific chemical change
What is chemical property?
100
the measure of the space occupied of an object
What is volume?
200
the two categories that classify properties of matter
What are intensive and extensive?
200
2 or more phases.
How many phases are there in a heterogenous mixtures?
200
chemical symbols, chemical formulas
What do chemists use to represent symbols and compounds?
200
the composition of matter
What always changes during a chemical change?
200
a chemical symbol
What is an element represented by?
300
two categories that classify physical changes.
What are irreversible and reversible?
300
Mixtures can be classified as heterogenous or homogenous mixtures.
How are mixtures classified?
300
Compounds, elements
____________ can be broken down into simpler substances by chemical means, but _________ cannot.
300
testing the composition of a sample before and after a change
What is the only way to be sure that a chemical change has occurred?
300
a mixture in which the composition is uniform throughout
What is a homozygous mixture?
400
takes shape and volume of container and indefinite shape and indefinite volume
What is gas and two of its properties?
400
Distribution of their components.
What determines the classification of mixtures as heterogenous or homogenous?
400
fixed, may vary
If the composition of material is ________, the material is a substance. If the composition ___________, the material is a mixture.
400
the mass of the reactants during any chemical reaction
What is the mass of the products always equal to?
400
In any physical change or chemical reaction mass is conserved.
What is the law of conservation of mass?
500
quality or condition of a substance that can be observed or measured without changing the substances' composition
What is a physical property?
500
Differences in physical properties can be used to separate mixtures.
What type of properties can be used to separate mixtures?
500
change that produces matter with a different composition than the original matter
What is a chemical change?
500
A transfer of energy, a change in color, the production of gas, or the formation of a precipitate.
What are the four possible clues to chemical change?
500
the process when a liquid is boiled to produce a vapor that is then condensed into a liquid.
What is distillation?