Download Assessment #1 Review Sheet - Belle Vernon Area School District

Assessment #1 Review Sheet
1.
Name:__________________
Types of Matter
Label each substance as an:
element, compound, homogeneous mixture (solution), or heterogeneous mixture:
a.
Chocolate chip cookie _________________________
e.
Magnesium chloride __________________________
b.
Kool-Aid ___________________________________
f.
Carbon dioxide ______________________________
c.
Silver ______________________________________
g.
Chlorine ___________________________________
d.
Salt ________________________________________
h.
Dirt _______________________________________
2.
Chemical Vs. Physical Changes and Properties
Label each as a chemical change, a physical change, a chemical property, or a physical property.
a. Reacts with oxygen _____________________________d. Easily rusts ___________________________________
b. A penny turns green ____________________________e. dissolving sugar _______________________________
c. Acid rain reacts with limestone____________________f. melting an ice cube _____________________________
3.
Symbol
18
O
Atomic Structure
atomic
number
atomic
mass
xxx
Mass Number
# of protons
# of neutrons
# of electrons
Pb+1
Fe
Al+3
Se-2
4.
Scientific Method: Define the following terms:
a. Law:_________________________________________________________________
b. Theory: ______________________________________________________________
c. Hypothesis:____________________________________________________________
d. Scientific Method:_______________________________________________________
5.
Precision Vs. Accuracy
If an accepted value is 15.0 g, give an example data set that is:
e. accurate and precise _____________________________________
f. accurate, but not precise __________________________________
g. precise, but not accurate __________________________________
h. neither accurate nor precise _______________________________
6.
Scientists
Fill in the table with what particle/concept the scientist discovered, what experiment he used to make his
discovery and draw a picture of his model of the atom.
Name
Discovery
John Dalton
Experiment
Model of the Atom
xxxxx
Ernest
Rutherford
J.J. Thomson
Xxxxxx
Xxxxxxx
Niels Bohr
7.
SI Units
Quantity
Unit
Abbreviation
Mass
Length
Temperature
Volume
8.
Conversions/Dimensional Analysis
Samantha is trying to make a dog house. Her directions tell her to measure a piece of wood 2.4 ft long,
but she only has a meter stick. If 1 meter = 3.28 ft, solve the following conversions. (Show all work)
i. How many meters are in 2.4 ft?
j. How many cm are in 2.4 ft?
k. How many km are in 456 cm?
9.
Ions vs. Atoms vs. Isotopes
Label each column as an ion, neutral atom, or isotope.
a.
b.
c.
# of Protons = electrons
# of Protons ≠ # of electrons
# of Protons = # of electrons
Get all info from periodic
table
Use charge to find # of
electrons
Has different number of
neutrons and a different mass
10. Fill in the chart.
Element
Mass
Number
Number of
Protons
Number of
Neutrons
Number of
Electrons
Os
192
76
116
76
Po
210
84
126
84
Fe
57
26
31
24
Normal
Atom, Ion,
Isotope
Charge
(Show chemical
symbol and charge)
11. Density
a. If a 4.5 g piece of aluminum has a density of 2.70 g/mL, what is its volume?
b. If you drop 5 pennies into a graduated cylinder that had an original volume of 10.0 mL and then it
has a final volume of 17.5 mL, and the pennies have a mass of 22.0 g, what is the density of the copper
pennies?
12. Specific Heat: Calculate the specific heat when 587 J of energy are transferred to a 5.0 g sample to raise its
temperature from 344 K to 389 K.
The specific heat of glass is 0.20 J/gK. Calculate the amount of energy transferred when a 14.0 g sample is
heated from 174 K to 314 K.
13. Scientific Notation
Write the following numbers in proper scientific notation.
a.
5008
______________
b.
47.2
______________
c.
0.0094 ______________
d. Calculate the following and express to the correct # of sig figs:
(4.50 x 109) x (8.1 x 108) =________________
(2.7 x 1025)
(4.5 x 1058) =__________________
(5.37 x 1012) x (2.0 x 10-8) =_________________
(8.4 x 1033)
(3.01 x 1012) = _________________
14. Significant Digits
15. Temp. Conv.
How many significant figures are in the following numbers?
Convert these temperatures
1) 5210 __________
1) 56 oC = ________K
2) 0.003500 __________
2) 314 K = _______oC
3) 22.00900 ___________
4) 0.09093 __________
16. Compare Solids, Liquids, and Gases
Solids
Liquids
Gases
17. Vocabulary:
Define:
a. endothermic: ___________________________________________________________
b. exothermic:_____________________________________________________________
c. heat: __________________________________________________________________
d. temperature: ____________________________________________________________
e. energy:_________________________________________________________________
f. Law of Conservation of Mass and Energy: _____________________________________
_________________________________________________________________________