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Grade 11 Oxidation-Reduction Reactions
Grade 11 Oxidation-Reduction Reactions
Which of the following half-reactions involves oxidation?
  1. Fe in [math]Fe(OH)_2 rarr Fe(OH)_3[/math]
  2. V in [math]VO^(2+) (aq) rarr V^(3+) (aq) [/math]
  3. Cl in [math]OCl^(-) (aq) rarr Cl^(-) (aq) [/math]
Grade 10 Reactions
What type of chemical reaction is [math]P + O -> PO[/math]?
  1. synthesis
  2. decomposition
  3. single replacement
  4. double replacement
Grade 10 Reactions
What type of reaction is Al + HCl -> H + AlCl
  1. synthesis
  2. decomposition
  3. single replacement
  4. double replacement
Grade 11 Oxidation-Reduction Reactions
Identify the reducing agent in the following reaction:

[math]I_2(aq) + 2S_2O_3^(2-) (aq) rarr S_4O_6^(2-) (aq) + 2I^(-) (aq)[/math]
  1. [math](S_2O_3)^(2-)[/math]
  2. [math]I_2[/math]
  3. [math](S_4O_6)^(2-)[/math]
  4. [math]I^(-)[/math]
Grade 11 Oxidation-Reduction Reactions
Consider the following redox reaction

[math]H_2C_2O_4 (aq) + MnO_4^(-) (aq) rarr CO_2(g) + Mn^(2+) (aq) [/math]

What is the reduction half reaction for this redox reaction?
  1. [math](Mn)^(7+) (aq) rarr Mn^(2+) (aq) [/math]
  2. [math]H_2C_2O_4 (aq) rarr CO_2(g)[/math]
  3. [math](MnO_4)^(-) (aq) + 8H^(+) (aq) rarr Mn^(2+) (aq) + 4H_2O (l)[/math]
  4. [math]H_2C_2O_4 (aq) rarr 2CO_2 (g) + 2H^(+) (aq)[/math]
Grade 8 Reactions
The speed of s reaction at one moment in time.
  1. net rate
  2. average rate
  3. reverse reaction
  4. instantaneous rate
Grade 11 Reactions
Which of the following equations represents a decomposition reaction?
  1. [math]H_2O(g) -> 2H_2O(g) + O_2(g)[/math]
  2. [math]2Ag_2O(s)->4Ag(s)+O_2(g)[/math]
  3. [math]Ag(s)+NaCl(aq)->AgCl(s)+Na(s)[/math]
  4. [math]NH_3(g)+HCl(g)->NH_4Cl(s)[/math]
Grade 11 Reactions
Which of the following chemical equations represents a single displacement reaction?
  1. [math]H_2O(g) -> 2H_2O(g) + O_2(g)[/math]
  2. [math]2Ag_2O(s)->4Ag(s)+O_2(g)[/math]
  3. [math]Ag(s)+NaCl(aq)->AgCl(s)+Na(s)[/math]
  4. [math]NH_3(g)+HCl(g)->NH_4Cl(s)[/math]
Grade 11 Reactions
Which of the following chemical equations represents a combination reaction?
  1. [math]H_2O(g) -> 2H_2O(g) + O_2(g)[/math]
  2. [math]2Ag_2O(s)->4Ag(s)+O_2(g)[/math]
  3. [math]Ag(s)+NaCl(aq)->AgCl(s)+Na(s)[/math]
  4. [math]NH_3(g)+HCl(g)->NH_4Cl(s)[/math]
Grade 7 Reactions
What type of reaction does the following equation represent?

[math]FeS + 2HCl rarr FeCl_2 + H_2S[/math]
  1. synthesis reaction
  2. double-displacement reaction
  3. single-displacement reaction
  4. decomposition reaction
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