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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.
What are the 4 states of matter?
Solid, liquid, gas, plasma
Convert 16.45m to cm
1645 cm
What is the atomic number of neon (Ne)?
10
Which area of study in chemistry deals with no carbon and nonliving things such as rocks?
Inorganic chemistry
What is the difference between elements and compounds?
2 or more elements make up a compound.
~~~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.
Name all 3 subatomic particles AND their charges.
Protons +
Neutrons 0
Electrons -
How many electrons does an orbital hold?
2
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
Is the atomic number located above or below the element's symbol on the periodic table?
Above the symbol.
How many neutrons does fluorine contain? (Mass # = 19)
Write the full electron configuration of a carbon (C) atom using the Aufbau principle and the periodic table.
1s2 2s2 2p2
What are the 5 areas of study in chemistry? Hint: one of them is Biochemistry.
Biochemistry Organic chemistry Inorganic chemistry Analytical chemistry Physical chemistry
Is odor an intensive physical, extensive physical, or chemical property?
Intensive Physical Property
What is the formula for density?
Density = Mass/Volume (Mass over volume)
What is an isotope?
Same element, different mass # (different # neutrons)
Name all 3 rules for electron configurations. One is a chart/principle. One is a principle. One is a rule.
Aufbau principle Pauli exclusion principle Hund's rule
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.
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)
Calculate the density of a material that has a mass of 52.457 g and a volume of 13.5cm3
3.89 g/cm3
What is the charge on Oxygen when it ionizes?
-2
What is the current model of the atom called?
Quantum Mechanical Model or Electron Cloud Model