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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 Nuclear Chemistry
Three types of natural nuclear reactions exist, radioactive decay, nuclear fission, and nuclear fusion. How is radioactive decay different from fission and fusion?
  1. Radioactive decay breaks apart large nuclei.
  2. Radioactive decay happens spontaneously.
  3. Radioactive decay combines different isotopes.
  4. Radioactive decay is not different from fission or fusion.
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]
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