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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
four states of matter
gas, liquid, solid, plasma
26
anuthing that has mass and takes up spacec
matter
27
smallest substance element can be broken without changing substance
atom
28
cannot be broken down into simpler substances by ordinary means
elements
29
elements that cannot exist by single atoms
diatomic elements
30
substance that can be decomposed by chemical means into simpler substances
compounds
31
grouping of symbols that tell us what kind of atoms as well as the number
formula
32
two or more elements physically mixed not chemically
mixture
33
group or two or more atoms linked by chemical bonds
molecules
34
components are in variable proportion
mixture
35
components are separated by chemical means
compound
36
atamos means
indivisible, cannot be broken down
37
components retain properties
mixture
38
proposed atomic theory
Dalton
39
energy possessed by matter due to motion
kinetic energy
40
two laws that came out of the atomic theory
law of definite composition law of multiple proportions
41
T/F: the higher the temp the lower the kinetic energy
FALSE
42
two types of mixtures
heterogenous homogenous
43
another name for heterogenous mixtures
solution
44
homogenous part of the mixture in contact with but physically distinct from
phase
45
two types of properties and changes
chemical physical
46
four signs of a chemical change
precipitate, gas, change in color, liberation or absorption of energy
47
this experiment led to the discovery of the nucleus
Gold Foil Experiment
48
ways to separate mixtures
distillation crystallization chromatography
49
most abundant element in the universe
hydrogen
50
three subatomic particles
protons, neutrons, electrons
51
protons are found in the
nucleus
52
discovered the neutron
Sir James Chadwick
53
protons and neutrons are supposedly composed of
quarks
54
symbol used to represent number of protons
Z
55
mass number
number of all nucleons (protons and nuetrons)
56
subatomic particle that has the smallest mass
electron
57
atoms of the same element that differ in mass number
isotopes
58
specific names for positive and negative ions
cation (+) anion (-)
59
average mass of all various isotopes in an elements compared to C12
atomic mass
60
units for atomic mass units
amu (u)
61
record of mass distribution of particles given by mass spectrometer
mass spectrum
62
form of matter has its own unique properties
substance
63
most common state of matter in the universe is
plasma
64
chemical change as a result of a collision of atoms or molecules
chemical reaction
65
prefix that has M
mega
66
SI unit of volume
liter
67
standard metric unit of length
meter
68
KNOW METRIC PREFIX CONVERSIONS
BE ABLE TO CONVERT AMONG THE TEMP SCALES
69
KNOW THE SIG FIG RULES
BE ABLE TO CALCULATE USING SIG FIGS
70
SCI TO DEC
DEC TO SCI
71
ATOMIC MASS (percent to decimal and multiply)
BE ABLE TO DO DIMENSIONAL ANALYSIS
72
BE ABLE TO FIND PROTONS, ELECTONS, NEUTRONS
KNOW THE ELEMENTS IN BOLD

Chemistry: Precision and Design (87 decks)

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