AP Chemistry Chapter 1

AP Chemistry Chapter 1

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Section 1

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Distillation

Front

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Cards (43)

Section 1

(43 cards)

Distillation

Front

process to separate the components of a mixture depending on the different abilities of the substance to form a gas

Back

Physical Change

Front

during this change , a substance changes its physical appearance but not its composition

Back

Mega

Front

10^6 M

Back

Temperature

Front

measure of the hotness or coldness of an object depending on the kinetic energy

Back

States of Matter

Front

solid liquid gas

Back

Gas

Front

no fixed volume or shape compressed and expanded

Back

Filtration

Front

process to separate mixture pour through filter paper or porous medium

Back

Giga

Front

10^9 G

Back

Explain the molecular organization of a gas. What Happens when you compress it?

Front

molecules are far apart and are moving at high speeds, colliding repeatedly with each other and the walls of the container Compressing a gas will decrease the amount of space between the molecules and increase the frequency of collisions ( does not alter shape or size of the molecule itself)

Back

Intensive Properties

Front

temperature ,melting point and density do not depend on the amount being examined

Back

Property

Front

any characteristic that allows us to recognize a particular type of matter and to distinguish it from other types

Back

Heterogeneous

Front

not uniform

Back

Density

Front

mass/volume

Back

Physical Properties

Front

properties can be observed without changing the identity and composition of a substance EX: color, density, melting point, boiling point, hardness

Back

Mass

Front

measure of the amount of material in an object base unit for this in SI is the kilogram

Back

Atoms

Front

building blocks of matter each element is composed of a unique type of atom arrangement of atoms create matter

Back

Compound

Front

substances composed of two or more elements- containing two or more kind of atoms

Back

Micro

Front

10^-6

Back

Accuracy

Front

how close the individual measurements are to the true value ( true value = correct value)

Back

Precision

Front

measure of how close the individual measurements agree with one another

Back

Deci

Front

0.1 d

Back

Molecules

Front

two or more atoms are joined together in specific shapes

Back

Extensive Properties

Front

depend on the quantity of the sample EX: mass , volume

Back

Liquid

Front

distinct volume independent to its container no specific shape

Back

Solid

Front

both definite shape and volume

Back

Homogeneous Mixture

Front

uniform

Back

Molecular Organization in a Solid

Front

molecules are held tightly together in a definite arrangements where they can only slightly wiggle

Back

Chromatography

Front

process to separate mixture seperates by components dissolved in an acid with paper to show the color change as they dissolve at different rates

Back

Kilo

Front

10^3 k

Back

Celsius Scale

Front

0 degrees is the freezing point 100 degrees is the boiling point

Back

Mixtures

Front

combinations of two or more substances in which each substances retains its own chemical identity composition can vary

Back

Elements

Front

elements cannot be composed into simpler

Back

Milli

Front

0.001 m

Back

Pico

Front

10^-12 p

Back

Matter

Front

physical material of the universe - anything that has mass and occupies space

Back

Chemical Change

Front

during this chance, a substance is transformed into a chemically different substance

Back

Nano

Front

10^-9 n

Back

Centi

Front

0.01 c

Back

Molecular Organization in a Liquid

Front

molecules are packed together but still move rapidly this rapid movement allows the molecules to slide past each other- explains why a liquid pours quickly

Back

Law of Constant Composition /Definite Proportions

Front

pure compound has the same composition and properties regardless of its source

Back

Femto

Front

10^-15 f

Back

Pure Substance

Front

Matter that has distinct properties and a composition that does not vary from sample to sample

Back

Chemical Properties

Front

properties pertaining to the chemical composition EX: flammability

Back