Chemistry Exam

Front 1

What is matter?

Back 1

Anything that has volume and takes up space

Front 2

What is chemistry?

Back 2

The study of the composition of matter and the changes that matter undergoes

Front 3

Name the five types of chemistry:

Back 3

organic, inorganic, biochemistry, physical, and analytical

Front 4

organic chemistry

Back 4

the study of all chemicals containing carbon

Front 5

inorganic chemistry

Back 5

the study of chemicals that in general do not ocntain carbon

Front 6

biochemistry

Back 6

the study of processes that take place in living organisms

Front 7

analytical chemistry

Back 7

the study of the composition of matter

Front 8

physical chemistry

Back 8

the study of the mechanism, the rate, and the energy transfer that occurs when matter undergoes a change

Front 9

pure chemistry

Back 9

the pursuit of chemical knowledge for its own sake

Front 10

applied chemistry

Back 10

research that is directed towards an application or goal

Front 11

macroscopic

Back 11

can be seen with the naked eye

Front 12

microscopic

Back 12

can't be seen with the naked eye, needs a microscope

Front 13

what are the three ways chemistry plays a role in energy

Back 13

conservation (insulation), production (burning fossil fuels), storage (batteries)

Front 14

alchemy

Back 14

what modern chemistry is based on, to create gold

Front 15

father of modern chemistry

Back 15

Antoine-Laurent Lavoisier

Front 16

what is the definition of the scientific method?

Back 16

a logical, systematic approach to finding a solution to a systemic problem

Front 17

what are the steps of the scientific method

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observe, research, hypothesis, experiment, data, theory

Front 18

scientific law

Back 18

a concise statement that summarizes the results of many observations and experiments

Front 19

theory

Back 19

a well-tested explanation for a broad set of observations

Front 20

mass

Back 20

the measure of the amount of matter something has

Front 21

volume

Back 21

a measure of the space an object takes up

Front 22

extensive property

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depends on the amount of matter in a sample

Front 23

intensive property

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depends on the type of matter in a sample

Front 24

physical property

Back 24

a quality or condition of a substance that can be observed or measure withuot changing the substance's composition

Front 25

what are the three states of matter

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solid, liquid, gas, (vapor)

Front 26

solid

Back 26

definate shape and volume

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liquid

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definate volume, indefinate shape

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gas

Back 28

indefinate volume and shape

Front 29

vapor

Back 29

something forced into being a gas when it is genrerally a liquid or solid at room temperature

Front 30

physical change

Back 30

some properties change but the composition does not change
can be reversible or irreversible

Front 31

mixture

Back 31

a physical blend of two or more compontents
(no uniform composition)

Front 32

heterogeneous

Back 32

a mixture with a non-uniform composition
can see the difference

Front 33

homogeneous

Back 33

a mixture with uniform composition through out

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solution

Back 34

a mixture with a uniform composition through out

Front 35

phase

Back 35

any part of a mixture (that's all the same, like the egg yolk)

Front 36

three ways to seperate mixtures

Back 36

filtration, distillation, crystalization

Front 37

filtration

Back 37

the process that seperates a solid from a liquid in a heterogeneous mixture

Front 38

distillation

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the process that seperates a mixture by taking advantage of differenct boiling points

Front 39

element

Back 39

the simplest form of matter
cannot be broken down

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compound

Back 40

a substance that contains two or more elements chemically combined
covalent bonds

Front 41

chemical change

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change that produces matter with a different chemical composition than the original matter

Front 42

substance

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material with fixed composition
(mixture is if it doesn't have a fixed composition)

Front 43

chemical property

Back 43

the ability of a substance to undergo a specific chemical change (rust)

Front 44

chemical reaction

Back 44

when one or more substances change into one or more new substances

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reactant

Back 45

substance present at the beginning of the reaction

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product

Back 46

substance produced in the reaction

Front 47

precipitate

Back 47

a solid that forms and settles out of of a liquid mixture (soap scum)

Front 48

conservation of mass

Back 48

during any chemical reaction, the mass of the products is always equal to the mass of the reactants

Front 49

measurement

Back 49

a quantity that has both a number and a unit

Front 50

scientific notation

Back 50

number between 1 and 10 x10 (to the blank)

Front 51

accuracy

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a measure of how close a true value of whatever is measured

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precision

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the measure of how close a series of measurements are one to another

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accepted value

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standard

Front 54

experimental value

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value measured in the lab

Front 55

SI

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stands for Systeme International (of Unites)

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SI unit for length

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meter

Front 57

SI unti for weight

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kilogram (kg)

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SI unit for temperature

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kelvin

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SI unit for time

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second

Front 60

SI unti for amount of substance

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mole (mol)

Front 61

SI unit for luminous intensity

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candela (cd)

Front 62

SI unit for electric current

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ampere (A)

Front 63

density formula

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density= mass/volume

Front 64

density generally _____ as its temperature ______

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decreases ... increases