Thermal Decomposition of Carbonates

Click For Summary

Discussion Overview

The discussion revolves around the thermal decomposition of metal carbonates, focusing on the possibility of writing ionic equations for the reactions involved. Participants explore the nature of these reactions, particularly in the context of double decomposition and the prediction of states of matter in chemical reactions.

Discussion Character

  • Technical explanation, Homework-related, Debate/contested

Main Points Raised

  • One participant inquires about the feasibility of writing ionic equations for the thermal decomposition of metal carbonates, noting the involvement of ionic solids and solutions.
  • Another participant presents several chemical reactions, including the decomposition of CuCO3 and its interaction with other compounds.
  • A different participant points out that some reactions occur in solution, suggesting that some reagents will exist as ions.
  • One participant challenges the accuracy of a presented reaction, indicating that CuO is unnecessarily included on the reactants side of the first reaction.

Areas of Agreement / Disagreement

Participants express differing views on the accuracy of the chemical equations presented, indicating a lack of consensus on the correct representation of the reactions.

Contextual Notes

The discussion includes assumptions about the states of matter in chemical reactions and the conditions under which reactions occur, which are not fully resolved.

sb.neethu
Messages
4
Reaction score
0
Hi,

I have a practical assessment tomorrow which deals with the Thermal Decomposition of a metal Carbonate.

Is it possible to write Ionic Equations for the reaction? Ionic solids and solutions are involved, but the reactions seem to be Double Decomposition, especially the test for CO2

Also, how is it possible to predict the state(solid, liquid,gas) of a chemical?
 
Physics news on Phys.org
CuCO3 + CuO --> CuO + CO2

CO2 + Ca(OH)2 --> CaCO3 +H2O

CuO + H2SO4 --> CuSO4 + H2O
 
Some of these reactions take place in solution, so some reagents will be in the form of ions.
 
Your first reaction has an unnecessary CuO on the reactants side.
 

Similar threads

Thermal decomposition of calcium carbonate - problem
  • · Replies 4 ·
Replies
4
Views
4K
Black Powder Combustion: Balanced Chemical Equations with State Symbols
  • · Replies 1 ·
Replies
1
Views
7K
Writing Net Ionic Equations: How to Include Physical States and Charges
  • · Replies 1 ·
Replies
1
Views
4K
Complete thermal decomposition of specific compounds
  • · Replies 4 ·
Replies
4
Views
3K
What Determines the Products of Heating (NH4)2CO3?
  • · Replies 9 ·
Replies
9
Views
33K
Chemistry homework help with enthelpy
  • · Replies 3 ·
Replies
3
Views
2K
Reactions in Solution, But Not In Solid Form?
  • · Replies 1 ·
Replies
1
Views
7K
Thermal decomposition of calcium carbonate ?
  • · Replies 4 ·
Replies
4
Views
9K
What Type of Reaction Occurs Between Fe(NO3)3 and KSCN?
  • · Replies 12 ·
Replies
12
Views
44K
News Scientists turn CO2 back into coal
  • · Replies 7 ·
Replies
7
Views
3K