ACS Chemistry Final Exam Review Guaranteed Success
All are examples of Lewis acid-base reactions except:
a) Cu⁺² (aq) + 4NH₃ (aq) ↔ [Cu(NH₃)₄]⁺² (aq)
b) HCl (g) + NH₃ (g) → NH₄Cl (s)
c) H⁺ + OH⁻ (aq) ↔ H₂O (l)
d) 2Na (s) + Cl₂ (g) → 2NaCl (s) ️d
Acco...
ACS Chemistry Final Exam Review Guaranteed Success
All are examples of Lewis acid-base reactions except:
a) Cu⁺² (aq) + 4NH₃ (aq) ↔ [Cu(NH₃)₄]⁺² (aq)
b) HCl (g) + NH₃ (g) → NH₄Cl (s)
c) H⁺ + OH⁻ (aq) ↔ H₂O (l)
d) 2Na (s) + Cl₂ (g) → 2NaCl (s) ✔️d
According to the Lewis definition; an acid is a species
a) accepting a pair of electrons
b) having a hydrogen ion
c) donating a pair of electrons
,d) accepting a hydrogen ion ✔️a
All are potential Lewis bases except
a) H₂O
b) CH₄
c) NH₃
d) CN⁻ ✔️b
Which hydrated metal ion is most acidic under conditions of equal molar concentration in water?
a) Zn⁺²
b) Ba⁺²
c) Al⁺³
,d) Ag⁺
e) K⁺ ✔️c
Which element in Group 15 (5A) forms the most basic oxide?
a) N
b) P
c) As
d) Sb
e) Bi ✔️Bi
In what respect does an atom of magnesium differ from a magnesium ion (Mg⁺²)?
, a) the ion has two more protons that the atom
b) the ion has a more stable electronic arrangement than the atom
c) the positive charge on the nucleus of the ion is two units greater than the nuclear charge on the atom
d) the ion will react more readily with free Cl₂
e) the ion has two more planetary electrons than the atom ✔️b
A certain atom has the symbol ¹⁴⁸₇₃ Px
What does this symbol indicate about an atom of the certain element?
a) it has 221 protons in the nucleus
b) it has 148 electrons
c) its atomic mass is 73 amu
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