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Type: Multiple-Choice
Category: Reactions
Level: Grade 9
Author: DebBioBeCa
Last Modified: a month ago

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Grade 9 Reactions

Which of the following is a balanced equation?
  1. [math]3 N_2 + 3 H_2[/math] [math]rarr[/math] [math]2 NH_3[/math]
  2. [math] 4 Al + 6 HCl [/math] [math]rarr[/math] [math] 3 H_2 + 2 AlCl_3 [/math]
  3. [math]2 O_2 + 3 H_2[/math] [math]rarr[/math] [math] 2 H_2O[/math]
  4. [math]2 K + Cl_2[/math] [math]rarr[/math] [math]2 KCl[/math]
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