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Atoms are Everywhere
Parts is Parts
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100
What is the difference between pure and applied chemistry?
Pure chemistry is using chemistry to further knowledge in the field of chemistry, and applied chemistry is using chemistry to solve real world issues/scientific problems.
100
What are the 4 states of matter?
Solid, liquid, gas, plasma
100
Convert 16.45m to cm
1645 cm
100
What is the atomic number of neon (Ne)?
10
100
S orbitals have how many electrons?
2
100
Ice
200
Which area of study in chemistry deals with no carbon and nonliving things such as rocks?
Inorganic chemistry
200
What is the difference between elements and compounds?
2 or more elements make up a compound.
200
~~~DOUBLE POINTS!!!~~~ Are the following measurements more ACCURATE or PRECISE when compared to the measurement of 100.0 degrees. Measurements: 77.4, 78.9, 77.1 degrees
PRECISE.
200
Name all 3 subatomic particles AND their charges.
Protons +
Neutrons 0
Electrons -
200
If you add energy to electrons they release this when returning to ground state.
What is light?
200
Covalent
300
Name at least 1 of the 3 steps in the scientific method according to the chemistry textbook.
1) Making observations 2) Proposing and testing hypotheses 3) Developing theories
300
Is the atomic number located above or below the element's symbol on the periodic table?
Above the symbol.
300
How many grams of CO2 do you have if you have 3 moles?
What is 132 moles?
300
How many neutrons does fluorine contain? (Mass # = 19)
10
300
How many energy levels does K have?
What is 4?
300
Ionic
400
What are the 5 areas of study in chemistry? Hint: one of them is Biochemistry.
Biochemistry Organic chemistry Inorganic chemistry Analytical chemistry Physical chemistry
400
Can be separated by filtration or distillation.
What is a mixture?
400
How many moles of water do you have if a beaker contains 2.6 grams?
What is .14 moles?
400
What is an isotope?
Same element, different mass # (different # neutrons)
400
What causes water to stick to the side of straws?
Hydrogen bonds
400
Heterogeneous Mixture
500
Give me an example of what a biochemist would do.
A biochemist works with chemical processes that happen inside of living things. Therefore, a few examples could be: they work with DNA, they study cells, etc.
500
Name 4 ways/evidence to identify a chemical reaction.
Change in color/odor/texture/taste, etc.
Give off heat or light
Produce a gas (bubbles)
Form a precipitate (solid)
500
How many atoms are in a mole of Helium?
6.02 x 1023
500
What is the charge on Oxygen when it ionizes?
-2
500
What kind of bond is formed by calcium and Iodine?
Ionic
500
Flame test