AP Chemistry Unit 7 Study Guide
Which of the following atoms or ions has 3
The statement that "the lowest energy configuration
for an atom is the one having the maximum number of
Chemistry II Honors Unit 3 Study Guide
Bromine exists naturally as a mixture of
bromine-79 and bromine-81 isotopes. An atom of
A) 35 protons, 44 neutrons, 35 electrons.
B) 34 protons and 35 electrons, only.
C) 44 protons, 44 electro
Chemistry II Honors Unit 4 Study Guide
An unknown substance dissolves readily in water but
not in benzene (a nonpolar solvent). Molecules of what type are
present in the substance?
A) neither polar nor nonpolar
C) either polar or nonpolar
Unit 1 Study Guide
It is estimated that uranium is relatively common in the
earth's crust, occurring in amounts of 4 g / metric ton. A metric
ton is 1000 kg. At this concentration, what mass of uranium is
present in 1.5 mg of the earth's crust?
A) 6 na