Chem 103 exam 2
_____(NH4)2SO4(aq) + _____Ba(C2H3O2)2(aq) --> _____BaSO4(s) + _____NH4C2H3O2(aq)
When the reaction shown is balanced, there are _____ atoms of oxygen and _____ of hydrogen
on every aspect.
A. 6; eleven
b. 4; 7
c. Sixteen; 28
d. 8; 14
e. 16; 18 - ANS-a. Triple; covalent
_____Al(OH)three + _____H2SO4 --> _____Al2(SO4)three + _____H2O
In the effectively balanced response, the coefficient for H2O is
a. 6
b. 2
c. 1
d. 8
e. Three - ANS-a. 6
_____KClO3 --> _____KCl + _____O2
When the reaction shown is efficiently balanced, the coefficients are
a. 2, 2, 2
b. 2, 2, three
c. 1, 1, 1
d. Four, four, 6
e. 2, 2, 1 - ANS-b. 2, 2, 3
2AgNO3(aq) + K2SO4(aq) --> 2 KNO3(aq) + Ag2SO4(s)
The net ionic reaction for the balanced equation shown above is
a. 2K^+(aq) + SO4^2-(aq) --> K2SO4(aq)
b. K^+(aq) + NO3^-(aq) --> KNO3 (aq)
c. Ag^+(aq) + NO3^-(aq) --> AgNO3(s)
d. H^+(aq) + OH^-(aq) --> H2O(l)
e. 2Ag^+(aq) + SO4^2-(aq) --> Ag2SO4(s) - ANS-e. 2Ag+(aq) + SO4 2-(aq) --> Ag2SO4(s)
2AgNO3(aq) + K2SO4(aq) --> 2KNO3(aq) + Ag2SO4(s)
The spectator ions in the response shown are
a. Silver ion and sulfate ion
b. Potassium ion and sulfate ion
c. Hydrogen ion and hydroxide ion
d. Silver ion and nitrate ion
e. Potassium ion and nitrate ion - ANS-e. Potassium ion and nitrate ion
, 2Cr(s) + 3Cl2(g) --> 2CrCl3(s)
In the subsequent reaction, which species is being oxidized and that's being reduced?
A. Oxidized: Cl2; reduced: CrCl3
b. Oxidized: CrCl3; decreased: Cr
c. Oxidized: Cl2; decreased: Cr
d. Oxidized: Cr; reduced: Cl2
e. Oxidized: Cr; reduced: CrCl3 - ANS-d. Oxidized: Cr; reduced: Cl2
A bond in which the electrons are shared unequally is referred to as a(n) _________ bond.
A. Coordinate covalent
b. Polar covalent
c. Non-polar covalent
d. Ionic
e. None of the above - ANS-b. Polar covalent
A chemical bond shaped when atom s proportion six electrons is a _____ bond; it's far nice
described as _____.
A. Triple; covalent
b. Single; covalent
c. Double; ionic
d. Unmarried; ionic
e. Double; covalent - ANS-a. Triple; covalent
A molecule that consists of three same polar bonds to the relevant atom may be
a. Non-polar in all cases
b. Polar in all cases
c. Non-polar if the geometry is planar triangular
d. Not possible to inform the polarity
e. Either polar or non-polar relying at the identification of the atoms bonded to the principal atom
- ANS-c. Non-polar if the geometry is planar triangular
All of the reactions proven are oxidation-reduction reactions except:
a. N2(g) + O2(g) --> 2NO(g)
b. K2SO4(aq) + BaCl2(aq) --> BaSO4(s) + 2KCl(aq)
c. Zn(s) + 2HCl(aq) --> ZnCl2(aq) + H2(g)
d. 2Fe2O3(s) --> 4Fe(s) + 3O2(g)
e. 2NaI(aq) + Cl2(g) --> 2NaCl(aq) + I2 - ANS-b. K2SO4(aq) + BaCl2(aq) --> BaSO4(s) +
2KCl(aq)
Give the name for KMnO4
a. Potassium permanganate
b. Potassium manganese tetroxide
c. Potassium magnesate
_____(NH4)2SO4(aq) + _____Ba(C2H3O2)2(aq) --> _____BaSO4(s) + _____NH4C2H3O2(aq)
When the reaction shown is balanced, there are _____ atoms of oxygen and _____ of hydrogen
on every aspect.
A. 6; eleven
b. 4; 7
c. Sixteen; 28
d. 8; 14
e. 16; 18 - ANS-a. Triple; covalent
_____Al(OH)three + _____H2SO4 --> _____Al2(SO4)three + _____H2O
In the effectively balanced response, the coefficient for H2O is
a. 6
b. 2
c. 1
d. 8
e. Three - ANS-a. 6
_____KClO3 --> _____KCl + _____O2
When the reaction shown is efficiently balanced, the coefficients are
a. 2, 2, 2
b. 2, 2, three
c. 1, 1, 1
d. Four, four, 6
e. 2, 2, 1 - ANS-b. 2, 2, 3
2AgNO3(aq) + K2SO4(aq) --> 2 KNO3(aq) + Ag2SO4(s)
The net ionic reaction for the balanced equation shown above is
a. 2K^+(aq) + SO4^2-(aq) --> K2SO4(aq)
b. K^+(aq) + NO3^-(aq) --> KNO3 (aq)
c. Ag^+(aq) + NO3^-(aq) --> AgNO3(s)
d. H^+(aq) + OH^-(aq) --> H2O(l)
e. 2Ag^+(aq) + SO4^2-(aq) --> Ag2SO4(s) - ANS-e. 2Ag+(aq) + SO4 2-(aq) --> Ag2SO4(s)
2AgNO3(aq) + K2SO4(aq) --> 2KNO3(aq) + Ag2SO4(s)
The spectator ions in the response shown are
a. Silver ion and sulfate ion
b. Potassium ion and sulfate ion
c. Hydrogen ion and hydroxide ion
d. Silver ion and nitrate ion
e. Potassium ion and nitrate ion - ANS-e. Potassium ion and nitrate ion
, 2Cr(s) + 3Cl2(g) --> 2CrCl3(s)
In the subsequent reaction, which species is being oxidized and that's being reduced?
A. Oxidized: Cl2; reduced: CrCl3
b. Oxidized: CrCl3; decreased: Cr
c. Oxidized: Cl2; decreased: Cr
d. Oxidized: Cr; reduced: Cl2
e. Oxidized: Cr; reduced: CrCl3 - ANS-d. Oxidized: Cr; reduced: Cl2
A bond in which the electrons are shared unequally is referred to as a(n) _________ bond.
A. Coordinate covalent
b. Polar covalent
c. Non-polar covalent
d. Ionic
e. None of the above - ANS-b. Polar covalent
A chemical bond shaped when atom s proportion six electrons is a _____ bond; it's far nice
described as _____.
A. Triple; covalent
b. Single; covalent
c. Double; ionic
d. Unmarried; ionic
e. Double; covalent - ANS-a. Triple; covalent
A molecule that consists of three same polar bonds to the relevant atom may be
a. Non-polar in all cases
b. Polar in all cases
c. Non-polar if the geometry is planar triangular
d. Not possible to inform the polarity
e. Either polar or non-polar relying at the identification of the atoms bonded to the principal atom
- ANS-c. Non-polar if the geometry is planar triangular
All of the reactions proven are oxidation-reduction reactions except:
a. N2(g) + O2(g) --> 2NO(g)
b. K2SO4(aq) + BaCl2(aq) --> BaSO4(s) + 2KCl(aq)
c. Zn(s) + 2HCl(aq) --> ZnCl2(aq) + H2(g)
d. 2Fe2O3(s) --> 4Fe(s) + 3O2(g)
e. 2NaI(aq) + Cl2(g) --> 2NaCl(aq) + I2 - ANS-b. K2SO4(aq) + BaCl2(aq) --> BaSO4(s) +
2KCl(aq)
Give the name for KMnO4
a. Potassium permanganate
b. Potassium manganese tetroxide
c. Potassium magnesate
