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WorksheetsClass Expectations and 1st semester review
Total questions: 40
Worksheet time: 23mins
When is a good time to ask to go to the restroom?
When Mrs. Levy is talking
When you are taking a test
When instructions are complete and you are working
What is Mrs. Levy's biggest rule?
Be smart
Get all A's
R.E.S.P.E.C.T
Turn in all your work
If there is a grease fire on your fellow classmate what should you use to put it out?
Water
Fire Extinguisher
Fire Blanket
More grease
How long should you rinse your eyes in the eyewash station should you have to use it?
30 seconds
1-4 minutes
5-15 minutes
Don't use it, just stick your head under the sink
What is the first step to lighting a Bunsen burner after everything has been hooked up?
Turn on the gas
Light your match
What is the tare method?
Measuring using a balance
When you measure the substance without any help
When you zero out the balance so you can measure a substance by itself
Measure the substance and the container then subtract
When diluting acids in water, which pours into the other
Acid into water, less splash
Water into acid, less splash
Doesnt matter
Acid into water, more splash
You ask, "What are we doing today!?"
Mrs. Levy will tell you
Don't. Just don't.
You don't want to know
Look at the board
I don't like my seat
Too bad so sad
That's okay, its just a suggestion
Move by my friends
Complain about it every 30 seconds
When you are working with lab groups or partners what should you be doing?
Completing the assignment/lab
Gossiping of course
Talking at a controlled voice level 2
Horseplay
When in Mrs. Levy's class you are supposed to enter through one door (by teacher desk) and exit through a different door(by science prep room)
true
false
If you are absent, where should you check for your work? (check all that apply)
Mrs. Levy
Google Classroom
The "Miss Class?" files at the back of the room
Don't worry about it, Mrs. Levy will find you
It is good practice to rest the thermometer on the bottom of the beaker while it heats up.
True
False
Which of these tools is used for measuring exact volume?
Graduated cylinder
Beaker
Electronic Balance
Evaporating dish
How many centimeters in a meter?
1
10
100
1000
Where do we go in case of a weather emergency?
Flex space
Science prep storage
Under your desk
In the hallway
What are the 3 parts of a chemical reaction?
reactant, arrow, product
cation, anion, neutral
ionic, covalent, metallic
When naming covalent compounds what do you include?
roman numerals
prefixes
"acid"
What is a coefficient?
The big number in front of a molecule (distributes to whole molecule)
The big number in front of a molecule (only multiplies first element)
The small number behind an element (multiplys only to the element)
The small number behind an element (multiplys to whole molecule)
What is a subscript?
The big number in front of a molecule (distributes to whole molecule)
The big number in front of a molecule (only multiplies first element)
The small number behind an element (multiplys only to the element)
The small number behind an element (multiplys to whole molecule)
Why do we use roman numerals in chemical names?
to represent the charge of the metal ion
because its cool
because it is part of the element name
What type of reaction would this be?
Q + T = QT
synthesis
combustion
decomposition
single replacement
Which of the following shows a chemical reaction?
bubbles formed
color change
shape change
freezing
What is the correct name for Mg(OH)2
magnesium hydroxide
magnesium (II) hydroxide
magnesium hydrogen oxide
magnesium dihydroxide
What is the correct name for Pb(NO3)2
lead(II) nitrate
lead(II) nitrite
lead(III) nitrate
lead (III) nitrite
What coefficients balance the following equation?
Na + S4 = Na2S
2, 1, 2
4, 1, 2
4, 1, 4
8, 1, 4
What is the name for CH4 ?
carbon tetrahydride
monocarbon tetrahydride
hydrocarbonic acid
carbon hydride
In a covalent bond electrons are...
shared
stolen
in a "sea"
How many atoms of oxygen are present in this molecule? 2Pb(NO3)2
18
3
6
12
What coefficients are needed to balance this equation?
Ca(NO3)2 + NaCl = NaNO3 + CaCl2
2, 2, 1, 2
1, 2, 2, 1
1, 2, 1, 1
1, 2, 2, 2
What is the charge (oxidation number) for oxygen?
+2
-2
+1
-3
How many electrons does a neutral potassium have?
19
39
10
What is a valance electron?
an electron
the electron(s) on the outermost energy level
the electron(s) closest to the nucleus
How many valence electrons does bromine have?
17
7
35
79
How many protons does an atom of titanium have?
22
47
23
48
What identifies an atom?
number of protons
number of electrons
number of neutrons
atomic mass number
What two subatomic particles make up the atomic mass number?
proton and electron
proton and neutron
neutron and electron
What is the correct name for H2SO4 ?
sulfuric acid
sulfurous acid
hydrosulfuric acid
hydrogen sulfate
What type of reaction ALWAYS creates carbon dioxide and water?
single replacement
double replacement
combination
combustion
What coefficients would correctly balance this equation? HCl + Pb(OH)4 = PbCl4 + H2O
4, 1, 1, 4
2, 1, 1, 2
2, 1, 2, 1
4, 2, 1, 4
