Identifying the type of the equation

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SUMMARY

The discussion focuses on identifying the types of chemical equations presented in a homework assignment involving aluminum and bromine reactions. The first equation is classified as an ionic equation due to the dissociation of aqueous solutions into ions. The second equation presents a challenge as it includes HBr, which is not dissociated, complicating its classification. The third equation is identified as a molecular equation, while the fourth is categorized as a net ionic equation. All equations exhibit characteristics of oxidation-reduction reactions, with aluminum transitioning from a reduced metal to ionic forms.

PREREQUISITES
  • Understanding of ionic and molecular equations
  • Familiarity with oxidation-reduction reactions
  • Knowledge of chemical notation and states of matter (s, aq, g)
  • Basic principles of chemical reaction classification
NEXT STEPS
  • Study the differences between ionic and molecular equations
  • Learn about oxidation-reduction reactions in detail
  • Explore the concept of net ionic equations
  • Review examples of dissociation in aqueous solutions
USEFUL FOR

Chemistry students, educators, and anyone interested in understanding chemical reaction classifications and the behavior of ionic compounds in reactions.

Zack K
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Homework Statement


Match the type of equation to the following.
2Al(s) + 6Br−(aq) + 6H+(aq) → 2Al3+(aq) + 6Br−(aq) + 3H2(g)
2Al(s) + 6HBr(aq) → 2Al3+(aq) + 6Br−(aq) + 3H2(g)
2Al(s) + 6HBr(aq) → 2AlBr3(aq) + 3H2(g)
2Al(s) + 6H+(aq) → 2Al3+(aq) + 3H2(g)

Homework Equations

The Attempt at a Solution


The first one is obviously ionic since all the aqueous solutions are split up into their ions
The second one is the one confusing, since The aqueous product is split into it's ions, but HBr isn't. I have no idea what it is.
The third one is a molecular equation
the fourth one looks to be a net ionic equation.
 
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They all look like oxidation-reduction. Each starts with reduced metal aluminum and become ionic aluminum ions or compounds.
 
Yep, second one defies simple classification attempts.
 

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