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Would an aqueous solution of KOH contain ions If so indicate the formulas of the ions in the solution this substance would not form ions in solution

Would an aqueous solution of KOH contain ions If so indicate the formulas of the ions in the solution this substance would not form ions in solution

 Would an aqueous solution of KOH contain ions?  If so, indicate the formulas of the ions in the solution.

A)No, this substance would not form ions in solution.

B)Yes.  K+(aq) + O2?(aq) + H+(aq)

C)Yes.  K+(aq) + OH?(aq)

D)Yes.  K?(aq) + OH+(aq)

E)Yes.  K+(aq) + H2O(l)

 

92.              When writing a net ionic equation, how would Mg(NO3)2(aq) be represented?

A)Mg2+(aq)  +  2NO3(aq)D)Mg(aq)  +  N2(aq)  + 3O2(aq)

B)Mg2+(aq)  +  NO3(aq)E)Mg2+(aq)  +  2N3–(aq) + 6O2–(aq)

C)Mg2+(aq)  +  (NO3)2(aq)

 

93.              Write and balance a net ionic equation for the reaction between hydrochloric acid and potassium hydroxide.

A)HCl(aq) + KOH(aq)  ? KCl(aq) + H2O(l)

B)H+(aq) + O2?(aq) ? OH?(aq)

C)H+(aq) + OH?(aq) ? H2O(l)

D)Cl?(aq) + OH+(aq) ? OHCl(aq)

E)K+(aq) + Cl?(aq) ? KCl(aq)

 

94.              Write and balance a net ionic equation for the reaction between iron(II) chloride and potassium hydroxide to form iron(II) hydroxide and potassium chloride.

A)Fe2Cl(aq) + OH?(aq) ? FeOH(s) + Cl?(aq)

B)Fe2+(aq) + OH?(aq) ? FeOH(s)

C)Fe2+(aq) + 2OH?(aq) ? Fe(OH)2(s)

D)2Cl?(aq) + 2K+(aq) ? 2KCl(s)

E)2Cl?(aq) + 2K+(aq) ? 2K(s) + Cl2(g)

 

95.              Write and balance a net ionic equation for the reaction between copper(II) chloride and zinc metal to form copper metal and zinc chloride.

A)Cu2Cl(aq) + Zn(s) ? 2Cu(s) + Zn+(aq) + Cl?(aq)

B)Cu2+(aq) + Zn(s) ? Cu(s) +  Zn2+(aq)

C)2Cu+(aq) + Zn(s) ? 2Cu(s) +  Zn2+(aq)

D)Cu2+(aq) + 2Cl?(aq) + Zn(s) ? Cu(s) +  Zn2+(aq) + 2Cl?(aq)

E)CuCl+(aq) + Zn(s) ? Cu(s) +  Zn2+(aq) + Cl?(aq)

 

Zn(s)  + Cu(NO3)2(aq) ? Cu(s)  + Zn(NO3)2(aq)

A)Zn2+(aq) and Cu2+(aq)D)NO3(aq) only

B)Zn2+(aq) and NO3(aq)E)There are no spectator ions.

C)Cu2+(aq) and NO3(aq)

 

Zn(s)  +  2HNO3(aq)  ?  Zn(NO3)2(aq)  +  H2(g)

A)Zn2+(aq) and NO3(aq)D)Zn2+(aq) only

B)H+(aq) and NO3(aq)E)There are no spectator ions.

C)NO3(aq) only

 

H2SO4(aq)  +  2KOH(aq)  ?  K2SO4(aq)  +  2H2O(l)

A)H+(aq) and OH(aq)

B)K+(aq) and SO42–(aq)

C)K+(aq), NO3(aq) , H+(aq), and OH(aq)

D)SO42–(aq) only

E)There are no spectator ions.

 

99.              When balancing a chemical equation, it is acceptable to change the subscripts on the formulas of the skeletal equation.

 

100.              When one compound is converted into two elements during a chemical reaction, a decomposition reaction has occurred.

abhinav behal 15-Feb-2020

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