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Chemistry - Chapter #2- Matter & Change
Terms in this set (64)
what is used to describe matter and can be classified as extensive or intensive?
The measure of the space occupied by an object.
matter that has a uniform and definite composition
A property that depends on the amount of matter in a sample.
what are the three states of matter?
solid, liquid, gas
A property that depends on the type of matter in a sample, not the amount of matter.
A quality or condition of a substance that can be observed or measured without changing the substance's composition.
solid, liquid and gas
3 states of matter are ________, ________ and ___________.
____________________ is a form of matter that has a definite shape, volume, and mass
_______________________ is a form of matter that has an indefinite shape, and flow, but a DEFINITE VOLUME
___________________ is a form of matter that takes both shape and volume of its container, but a DEFINITE MASS
A form of matter that has a definite shape and volume.
A form of matter that has an indefinite shape, flows, yet has a fixed volume.
A form of matter that takes both the shape and the volume of the container.
The gaseous state of a substance that is generally a solid or liquid at room temperature.
During this, some properties of a material change, but the composition of the substance does not change.
A physical blend of two or more components
A mixture in which the composition is not uniform throughout
A mixture in which the composition is uniform throughout.
what are some examples of heterogeneous mixtures?
what are some examples of homogeneous mixtures?
tea, plastic, tap water, metal aloids (steal)
Another word for a homogeneous mixture.
the process that separates a solid from a liquid in a heterogeneous mixture
a liquid is boiled to produce a vapor that is then condensed into a liquid
The simplest form of matter that has a unique set of chemical and physical properties, and it is made up of only one substance
compound (formula unit)
A substance that contains two or more elements chemically combined in a fixed proportion.
A change that produces matter in a different composition than the original matter
If the composition of the material is _________, the material is a substance.
what are used to represent element?
what are used to represent compounds?
________________ developed a series of symbols to represent the elements that we use today.
A second way to break down compounds is by ____________ them.
The ability of a substance to undergo a specific chemical change
During a chemical change, the composition of matter ______________ changes.
During _______________, one or more substances changes into one or more new substances.
The substance present at the start of the chemical reaction
The substance that forms during a chemical reaction
During any chemical reaction, the ______ of the product is always equal to the mass of the reactants.
true or false; all samples of a substance have different physical properties.
what are some examples of physical properties?
hardness, color, melting
a physical change alter a given material without changing its chemical _______________________.
what are some words to describe physical changes?
boil, freeze, melt, compress, split, grind, crunch
what is true about all physical changes that involve a change of state?
it can be irreversible and reversable
How many phases exit in homogeneous mixtures?
How many phase exit in heterogeneous mixtures?
2 or more
what does the periodic table show?
elements are placed on the table by increasing ____________________ _________________.
a horizontal row is a ____________________.
each element is represented by a _______________________ _______________.
In what two groups can substances be classified?
element or compound
true or false; elements can be easily separated into simpler substances
what is used to represent an element?
what are chemical symbols used for?
represent elements and compounds
a change in the composition of matter _______________ occurs during a chemical reaction
indications to a chemical change
color, production of a gas, the formation of a precipitate, transfer of energy, and change of smell
chemical properties are reactant with....
flammability, acid, and oxygen
physical properties are reactant with.....
boil, freeze, cut, crush, break
a solid that forms and settles out of a liquid mixture
compound is to ____________.
mixture is to _________________.
the reactant goes on which side of the equation?
the product goes on which side of the equation?
difference in physical properties can be used to separate ________________________.
law of conservation of mass
mass is neither created nor destroyed
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