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Chemistry Chapter 1 Flashcards | StudBud
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Chemistry Chapter 1
Chemistry Chapter 1
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#Chemistry
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Answers
1
Chemical reactions occurs
all the time
in test tubes
everywhere
in our bodies
2
The ______ of an object is a result of the gravitational forces acting on it.
pounds
mass
weight
density
3
The prefix milli- means _______.
.0001
10-1
1,000
10-3
4
Because ________ forces can vary, weight may change.
math
labratory
gravetational
scientifical
5
How many conversion factors are there for every conversion?
1
3
0
2
6
Mass never changes but weight may vary.
False
True
7
The force that gravity exerts on an object is proportional to the objects ________.
pressure
weight
mass
size
8
What is the symbol for lead?
Pb
Li
Le
Hg
9
Particles in a gas are
vary far apart
strongly attracted to each other
closely packed
held in fixed positions
10
The abbreviation that represents a volume is _____.
ms
mL
mm
mg
11
What is the SI base unit for time?
Minutes
Seconds
Days
Hours
12
Products are always found on the right hand side of a chemical equation.
True
False
13
Sodium and chlorine combine to form sodium chloride. Sodium and chlorine are _____.
Reactants
Products
Physical Change
Chemical Change
14
He is the symbol for
hydrogen
helix
heman
helium
15
The ____ of an object is the quantity of matter contained in that object.
mass
amount
size
weight
16
______ is anything that has mass & volume.
kilograms
matter
space
weight
17
An objects _____ is the space an object occupies.
mass
volume
weight
size
18
Pb is the symbol for
platnium
plutonium
lead
Phosophoropus
19
_________ has a fixed shape and volume.
gas
glass
solids
liquid
20
Quantitative observations are recorded using
a system
non numerical information
a control
numbers
21
The _____ of an object never changes.
weight
gravity
mass
volume
22
The smallest unit of an elements that has all of the elements properties.
molecule
atom
compound
diatomic
23
There are three states of matter.
False
True
24
____________ is concerned with the properties and changes that chemicals undergo.
Chemistry
Atoms
Elements
Compounds
25
Weight and masses measured in the our lab will be the same.
False
True
26
Pure substances are
molecules
compounds
mixtures
elements
27
Matter includes all of the following except _____.
water
time
air
space
28
P is the chemical symbol for
Plutonium
Phosphorus
phosphate
Potassium
29
An alloy is a
heterogeneous mixture of two or more metals
homogeneous mixture of two or more metals
two chemically combined metals
two physically combined metals
30
Sand mixed with salt is an example of a
heterogeneous mixture
compound
pure substance
homogeneous mixture
31
_________ have a fixed volume and no fixed shape.
liquids
gases
solids
plasma
32
The abbreviation kg means _____.
kilometer
kiloliter
kilogram
kilogrim
33
One Liter is equivalent to ________.
1,000c3
1,000cm3
1,000m2
1,000g3
34
Ne is the chemical symbol for
namesuth
neon
nickle
nitrogen
35
What is the SI base unit for length?
Kilometer (Km)
Centimeter (cm)
meter (m)
Millimeter (mm)
36
A ______ is a combination of 2 or more substances that are not chemically combined.
molecule
mixture
compound
atom
37
______are considered pure substances.
mixtures
homogeneous mixtures
elements
heterogeneous mixtures
38
There are ________ different elements today.
128
118
120
85
39
What are the SI Base units for temperature?
K
C°
F°
T°
40
What does the prefix Kilo- mean?
1,000
100
10
.001
41
Bi is the chemical symbol for ____.
Bismith
Bismuth
Boron
Bismath
42
Mass is measured with a balance.
False
True
43
Most visible matter in the universe is ______.
Gases
Solid
Plasma
Liquids
44
The prefix Centi- means ______.
10-3
100
1/100
.001
45
What is the Formula for density?
D = V / m
D= m/v
D = g / kg
D = kg/ ml
46
The symbol for tin is _____.
Ti
Sn
Sr
T
47
Reactants are always found on the right side of a chemical equation.
True
False
48
Oxygen has two forms O
2
and 0
3
false
true
49
What is the abbreviation for meter?
M
m
me
mt.
50
_______ has no fixed volume or fixed shape.
gases
solids
plasmas
liquids
