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WorksheetsChemistry Review
Total questions: 25
Worksheet time: 18mins
WHAT SONG DO THESE LYRICS COME FROM: "A diamond gold ring, customized to cut your circulation"
Chemical Kids and Mechanical Brides
Yeah Boy and Doll Face
The Cheap Bouquet
Diamonds and Why Men Buy Them
Fill in the blank: "Work at a _____ _____"
(a)
What is full of holes but still holds water? (ONE WORD ONLY)
(a)
Which answer choice accurately describes a hazard diamond?
RED: reactivity
YELLOW:health
BLUE:special
WHITE: fire
RED: health
YELLOW: special
BLUE:fire
WHITE: reactivity
RED: fire
YELLOW: reactivity
BLUE: health
WHITE:special
RED: special
YELLOW: fire
BLUE: reactivity
WHITE:health
A theory is a proven description of a natural phenomenon.
true
false
When rounding with sig figs..
leading zeros count SOMETIMES
captured zeros ALWAYS count
trailing zeros NEVER count
all of the above
Convert 30,900 seconds to days (round appropriately, NO UNITS)
(a)
Isotopes MUST have the same number of protons as the original atom.
True
False
Which answer choice is an example of chemical change?
tearing
crumbling
melting
spoiling
Pure substances can be separated into it's components.
True
False
Which property below would a metal possess?
malleable
dull
poor conductor
none of the above
How many grams are found in 3.4x10^24 atoms of Strontium? (round appropriately, NO UNITS)
(a)
According to Hund's rule, you must put one electron per orbital before pairing.
true
false
Which component of the equation E=hv is a constant?
E
h
v
As you approach the ___ side of the visible light spectrum, the wavelength gets shorter.
left
right
How many water molecules are in this compound: sulfate heptahydrate?
7
6
8
5
A cation is an ion with a ______ charge.
positive
negative
What is the molar mass of Calcium Nitrate? (rounded to a whole number)
(a)
Convert 75.4g of Potassium Nitrate to moles. (round accordingly)
(a)
What do excited electrons do?
multiply
gain energy
lose energy
explode
What is the frequency of the color green? The wavelength is 540nm.
(a)
A polyatomic ion is an ion made of many atoms
true
false
If you have 5.2x10^23 atoms of N, how many moles do you have? (round accordingly)
(a)
Calculate the average atomic mass: Copper - 63, abundance 69.17%, 62.929599 AMU; Copper - 65, abundance 30.83%, 64.927793 AMU. (round accordingly)
(a)
How many atoms of carbon are in 0.00115g of carbon? (round accordingly)
(a)
