Balanced Equations for AgNO3 + HCl, Zn + HCl, and C2H5OH + O2 Reactions

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Discussion Overview

The discussion revolves around predicting products and writing balanced equations for three chemical reactions: AgNO3 + HCl, Zn + HCl, and C2H5OH + O2. The scope includes chemical equations, balancing reactions, and understanding combustion processes.

Discussion Character

  • Homework-related
  • Technical explanation
  • Conceptual clarification

Main Points Raised

  • One participant proposes the products for (a) as AgCl and HNO3, and for (b) as ZnCl2 and H2, questioning their correctness.
  • Another participant suggests that the combustion of C2H5OH will produce CO2, H2O, and energy.
  • A subsequent reply suggests a balanced equation for (c) as C2H5OH + O2 + heat = CO2 + H2O + heat, but does not balance it.
  • Another participant emphasizes the need to balance the equation for (c), noting that two moles of CO2 must be produced for two carbons in ethyl alcohol.
  • One participant expresses confusion about balancing the equation for (c) and proposes a specific balanced equation involving 4 moles of C2H5OH and 13 moles of O2 producing 8 moles of CO2 and 10 moles of H2O.
  • A later reply questions the correctness of the previous query and suggests a simpler approach to balancing the equation for (c), emphasizing the importance of matching the number of atoms on both sides.

Areas of Agreement / Disagreement

Participants generally agree on the products for reactions (a) and (b), but there is no consensus on the balanced equation for reaction (c), with multiple competing views on how to properly balance it.

Contextual Notes

Participants express uncertainty regarding the balancing of the combustion reaction for C2H5OH, and there are varying approaches to achieving the correct balanced equation.

Who May Find This Useful

This discussion may be useful for students learning about chemical reactions, balancing equations, and combustion processes in organic chemistry.

dg_5021
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Predict the products and write balanced equations for the following reactions:

(a) AgNO3 + HCl

(b) Zn + HCl

(c) C2H5OH + O2 + heat



For (a) i got AgNO3 + HCl = AgCl + HNO3
For (b) i got Zn + 2HCl = ZnCl2 + H2

Did i do it right? I have no idea how to do part (c)? Also what do they mean to predict the product?
 
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If i remember correctly the chemistry i was taught in my freshman year

C) Will give as products CO2, H2O, and Energy, like any good combustion reaction with organic substances
 
Last edited:
so for c) would it be: C2H5OH + O2 + heat = CO2 + h20 + heat?
 
Hello,

All answers are correct, except that in (c) you have to write its balanced equation. If there are two carbons in ethyl alcohol, then two moles of CO2 must be produced, as you know. The balanced form is easy to write, just make all atom numbers equal in both sides.
 
am still confused so for c) C2H5OH + O2 + heat is it:

4 C2H5OH + 13 O2 + heat = 8CO2 + 10 H2O
 
I am not sure your query is correct, let's do like this:

[tex]C_2H_5OH + O_2 \rightarrow CO_2 + H_2O[/tex]

Here, you'll put some numbers to balance atom numbers, for example two carbons on the left, then two carbons must be on the right, etc. It is too easy to cause any confusion, don't think very complex. The answer is right there.
 

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