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CHEM 120 EXAM 1 STUDY GUIDE LATEST UPDATED RATED A.
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CHEM 120 EXAM 1 STUDY GUIDE LATEST UPDATED RATED A.
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CHEM 120 EXAM 1 STUDY GUIDE LATESTUPDATED RATED A.
Trailing zeros (zeros at the end of a number) are :
✔✔significant IF decimal is present in the number (56.00)
NOT significant IF decimal is not explicitly present (59,000,000)
charge/location of electron
✔✔-1 charge/electron cloud
charge/location of proton
✔✔+1 charge/mass/nucleus
charge/location of neutron
✔✔neutral charge/nucleus
define atomic number
✔✔(top number in periodic table, Z in equation), equivalent to number
of protons which is equivalent to the number of electrons within an atom
define mass number
✔✔(bottom number in periodic table, A in equation), to determine
number of neutrons within an atom: mass # (A) - atomic # (Z)
dimensional analysis practice: convert following measurements to meters
, a. 0.003km
b. 3.0 x 10^8mm
c. 4.0 x 10^5cm
✔✔
dimensional analysis practice: the human stomach produces approx
2500mL of gastric juice per day. what is the volume, in liters, of gastric
juice produced?
✔✔
dimensional analysis practice: a typical loss of water through sweating for
a human is 450 mL per day. what is the volume, in liters, of sweat
produced per day?
✔✔
dimensional analysis practice: what volume of water, in gallons, would be
required to fill a 25-mL container?
✔✔
dimensional analysis practice: the smallest bone in the human body,
which is in the ear, has a mass of 0.0030g. what is the mass of the bone in
pounds?
✔✔
common name for group 1A on the periodic table
✔✔alkali metals
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