element:a substance that cannot be separated or broken down into simpler substances by
chemical means; all atoms have the same atomic number
Study Buddy Unit 1A: Qualitative Properties and Changes in Matter (PROP)
Terms
Description
Diagram/Example
the scientific study of the composition, structure, and properties of matter and the
changes that matter undergoes
Chemistry
anything that has mass and takes up space
Matter
Substance
a combination of two or more substances that are
not chemically combined
Mixture
Chemical Property
a characteristic of a substance that does not
involve a chemical change, such as density,
color, or hardness
property that can be observed in chemcial
reaction
Physical Change
a change of matter from one form to another
without a change in chemical properties
Physical Property
Chemical Change
Extensive Property
Intensive Property
Law of Conservation of
Mass
a change that occurs when one or more
substances change into entirely new substances
with different properties
material made up of 2 or more different elemts
which are physically combined
property of matter that does not chnge as amount of
matter chnges
mass is neither created nor destroyed in
chemical reactions
Identify the following particle diagrams as either a substance or mixture:
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Energy Flow- Label the following as energy
flowing into orcopyright
out of the
substance.
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Physical & Chemical Practice
Density
Color
Boiling Point
Evaporation
Burning
Property
or Change
Physical or
Chemical
Intensive or
Extensive
property
property
property
change
change
physical
physical
chemical
chemical
physical
intensive
intensive
intensive
Example
Baking a cupcake
Freezing water
Fireworks exploding
Where is the energy going?
inside
outside
inside
Study Buddy Unit 1B: Quantitative Measurement of Matter (PROP)
Terms
Description
a measure of the amount of matter that an object
contains; the SI base unit of mass is the kilogram
Mass
Symbol
Unit
a measure of the space occupied by a sample of
matter
the ratio of the mass of an object to its volume
Volume
Density
m/v
the amount of a substance that contains 6.02 ×
1023 representative particles of that substance
Mole
Avogadro’s Number
Molar Mass
the number of representative particles contained
in one mole of a substance; equal to 6.02 × 1023
particles
the mass of one mole of any substance- look at
PT atomic mass for elements
Accuracy:the closeness
of a measurement to the
true value of what is
being measured
Precision:
describes the closeness,
or reproducibility, of a set
of measurements taken
under the same
conditions
Rank the States of Matter (Solid, Liquid, Gas)
from Most to Least Dense for Most Substances
Most dense _____, _____, _____ Least Dense
Using the image above, what is the length of this nail to:
1 significant figure
2 significant figures
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3 significant figures
Circle the measurement that is most accurate ↑
Convert the following numbers between Standard
and Scientific Notation
Standard Notation
0.0026
6,000,000
0.000092
620000
.000198
34000000
Scientific Notation
2.6x10*-3
6x10*7
9.2x10*5
6.2 x 105
1.98 x 10-4
3.4 x 107
Round the molar mass of the following elements to
the tenths place:
Molar Mass (g/mol)
Find atomic mass and
then find the how many
moles and then
multiply
for atoms you do
6.02X10*23 and times
taht by moles
Oxygen
Chlorine
Hydrogen
Iron
Calcium
Place Value:
1000
1 (g, L, m)
0.01
0.001
SI Prefix:
1 mole of Carbon
= _____________ atoms
Fraction:
= _____________ grams
Convert 1503.5 centimeters to kilometers.
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