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110. The f subshell contains seven orbitals BECAUSE
the f subshell is defined by the
secondary quantum number 3.
111. The 5s orbital is filled after the 4d
BECAUSE
the 5s orbital has a lower energy than
orbital
the 4d orbital.
112. Under the conditions of low
BECAUSE
the deviation from the ideal gas law is
pressure and high temperature,
due to the non-negligible volume of the
the ideal gas laws are inaccurate
molecules and the interactions
between molecules.
113. In an electrolytic cell, the anode
BECAUSE
anions migrate to the anode and cations
becomes positive and the cathode
migrate to the cathode.
becomes negative
114. When a piece of Al is dropped into a
BECAUSE
Al is more readily oxidized than Mg.
1M solution of MgCl
2
, elemental Mg
appears
Part C
Directions: Each of the following questions or incomplete statements is followed by five possible
answers or completions. Select the one choice that is best in each case and darken the corresponding
circle on the answer sheet.
26. In a .1M solution of H
3
PO
4
the ionic species
present are (besides H
3
+
O and OH
–
)
(A) H
2
PO
4
–
, HPO
4
–2
, PO
3
–3
, PO
2
–4
(B) H
2
PO
2
–3
, H
2
PO
4
–
, PO
4
–3
(C) H
2
PO
4
–
, HPO
3
–2
, PO
2
–3
(D) PO
3
–4
, PO
4
–3
, HPO
4
–2
, H
2
PO
4
–
(E) H
2
PO
4
–
, HPO
4
–2
, PO
4
–3