Chemical Reaction Homework: Balancing Equation for CaCO3 & Al2(SiO3)3

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Discussion Overview

The discussion centers around the balancing of a chemical equation involving the reaction between calcium carbonate (CaCO3) and aluminum silicate (Al2(SiO3)3) to produce cement components. The scope includes homework-related inquiries and the application of chemical principles in balancing equations and determining physical states of reactants and products.

Discussion Character

  • Homework-related
  • Mathematical reasoning

Main Points Raised

  • One participant presents an initial unbalanced equation for the reaction and seeks confirmation on its correctness.
  • Another participant suggests that the initial attempt is correct so far.
  • A later post proposes a balanced equation and asks about determining the physical states of the reactants and products.
  • Some participants agree that solubility rules can be a starting point for determining physical states, while one participant notes that solubility rules may not be applicable since the discussion involves solids.

Areas of Agreement / Disagreement

There is no consensus on the final balanced equation, as participants provide different versions. Additionally, there is a disagreement regarding the applicability of solubility rules to the physical states of the reactants and products.

Contextual Notes

Participants have not fully resolved the balancing of the equation, and there are uncertainties regarding the physical states of the substances involved.

kerrwilk
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Homework Statement



If limestone (calcium carbonate) and clay (assume aluminum silicate) are mixed together and heated then the result is cement. Cement is a mixture of calcium oxide, carbon dioxide, aluminum oxide, and calcium silicate. These bags can be purchased at any building supplies store. Write the balanced equation for this reaction.

Homework Equations





The Attempt at a Solution



CaCO3+Al2(SiO3)3 -> CaO+CO2+Al2O3 +CaSiO3

I know I did not balance the equation yet. I just want to make sure I wrote it right before I do. Did I do this part right? Thanks.
 
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So far, so good.
 

The Attempt at a Solution




4CaCO3+Al2(SiO3)3 -> CaO+4CO2+Al2O3 +3CaSiO3

Is this right? Also, how do I determine the physical state of each reactant and product? Do I use the solubility rules? Thanks for your help.
 
Last edited by a moderator:
Looks good to me. Yes, solubility rules are a good start. Also, we can use a bit of personal experience too--e.g., we know CO2 is a gas at room temperature.
 
We are talking about solid, so solubility rules are a little bit off.
 
Thanks a lot.
 

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