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Chemistry: Precision and Design > Test 1 Review > Flashcards

Test 1 Review Flashcards

1
Q

smallest particle without changing substance

A

atom

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2
Q

one type of substance

A

pure substance

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3
Q

several compounds involved

A

mixture

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4
Q

shows number of protons

A

atomic number

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5
Q

shows total number of nucleons (protons and neutrons)

A

mass number

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6
Q

cutting of meat

A

physical change

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7
Q

leaves changing color in autumn

A

chemical change

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8
Q

baking cake

A

chemical change

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9
Q

types of chemistry

A

analytical chemistry, physical, biochemistry

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10
Q

measurement system used in US

A

English system

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11
Q

Greek letter used for micro-

A

looks like a u
mu

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12
Q

two types of exact numbers

A

counting
exact values

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13
Q

standard unit of mass

A

kilogram

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14
Q

collection of compatible measurements

A

system of measurement

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15
Q

quantity of matter

A

mass

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16
Q

multiplier of kilo-

A

1000

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17
Q

measure of force of gravity

A

weight

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18
Q

equation for density

A

p=m/V

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19
Q

unique about the Kelvin scale

A

no negative values
no degrees

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20
Q

SI unit for time

A

second

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21
Q

errors that involve precision

A

random errors

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22
Q

3.260 numb of sig figs

A

4 sig figs

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23
Q

0.09020 # of sig figs

A

4 sig figs

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24
Q

5400 # of sf

A

2

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25
Q

four states of matter

A

gas, liquid, solid, plasma

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26
Q

anuthing that has mass and takes up spacec

A

matter

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27
Q

smallest substance element can be broken without changing substance

A

atom

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28
Q

cannot be broken down into simpler substances by ordinary means

A

elements

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29
Q

elements that cannot exist by single atoms

A

diatomic elements

30
Q

substance that can be decomposed by chemical means into simpler substances

A

compounds

31
Q

grouping of symbols that tell us what kind of atoms as well as the number

A

formula

32
Q

two or more elements physically mixed not chemically

A

mixture

33
Q

group or two or more atoms linked by chemical bonds

A

molecules

34
Q

components are in variable proportion

A

mixture

35
Q

components are separated by chemical means

A

compound

36
Q

atamos means

A

indivisible, cannot be broken down

37
Q

components retain properties

A

mixture

38
Q

proposed atomic theory

A

Dalton

39
Q

energy possessed by matter due to motion

A

kinetic energy

40
Q

two laws that came out of the atomic theory

A

law of definite composition
law of multiple proportions

41
Q

T/F: the higher the temp the lower the kinetic energy

A

FALSE

42
Q

two types of mixtures

A

heterogenous
homogenous

43
Q

another name for heterogenous mixtures

A

solution

44
Q

homogenous part of the mixture in contact with but physically distinct from

A

phase

45
Q

two types of properties and changes

A

chemical
physical

46
Q

four signs of a chemical change

A

precipitate, gas, change in color, liberation or absorption of energy

47
Q

this experiment led to the discovery of the nucleus

A

Gold Foil Experiment

48
Q

ways to separate mixtures

A

distillation
crystallization
chromatography

49
Q

most abundant element in the universe

A

hydrogen

50
Q

three subatomic particles

A

protons, neutrons, electrons

51
Q

protons are found in the

A

nucleus

52
Q

discovered the neutron

A

Sir James Chadwick

53
Q

protons and neutrons are supposedly composed of

A

quarks

54
Q

symbol used to represent number of protons

A

Z

55
Q

mass number

A

number of all nucleons (protons and nuetrons)

56
Q

subatomic particle that has the smallest mass

A

electron

57
Q

atoms of the same element that differ in mass number

A

isotopes

58
Q

specific names for positive and negative ions

A

cation (+)
anion (-)

59
Q

average mass of all various isotopes in an elements compared to C12

A

atomic mass

60
Q

units for atomic mass units

A

amu (u)

61
Q

record of mass distribution of particles given by mass spectrometer

A

mass spectrum

62
Q

form of matter has its own unique properties

A

substance

63
Q

most common state of matter in the universe is

A

plasma

64
Q

chemical change as a result of a collision of atoms or molecules

A

chemical reaction

65
Q

prefix that has M

A

mega

66
Q

SI unit of volume

A

liter

67
Q

standard metric unit of length

A

meter

68
Q

KNOW METRIC PREFIX CONVERSIONS

A

BE ABLE TO CONVERT AMONG THE TEMP SCALES

69
Q

KNOW THE SIG FIG RULES

A

BE ABLE TO CALCULATE USING SIG FIGS

70
Q

SCI TO DEC

A

DEC TO SCI

71
Q

ATOMIC MASS (percent to decimal and multiply)

A

BE ABLE TO DO DIMENSIONAL ANALYSIS

72
Q

BE ABLE TO FIND PROTONS, ELECTONS, NEUTRONS

A

KNOW THE ELEMENTS IN BOLD

Chemistry: Precision and Design (10 decks)

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