a given mass of limestone under norma room candtions. The
imeskane onderi decomposed as according ko the sollowing
.
They collected the gaseous product evolved using various pos syringes
The goseous product was found to be occupying a Tolat volume of 6 lhess. Athough the students, kngew that 1 mole of gos cantins partictes,
they are finding it hard to know the quantity of porticles in goseous prodoe hey had collecked.
d) Explain the categories of substances involved in the decom position.
is an ionio oompound because calciun loases electrons to bocome
eherged i.e is a covalent compound because both oxyoen and carter lectrons to form stable bonds i.e . is an ionic compand calcium iso of particles in the gaseous produet.

Ask by Cummings Carter. in Uganda

Mar 29,2025

Question

a given mass of limestone under norma room candtions. The
imeskane onderi decomposed as according ko the sollowing
.
They collected the gaseous product evolved using various pos syringes
The goseous product was found to be occupying a Tolat volume of 6 lhess. Athough the students, kngew that 1 mole of gos cantins partictes,
they are finding it hard to know the quantity of porticles in goseous prodoe hey had collecked.
d) Explain the categories of substances involved in the decom position.
is an ionio oompound because calciun loases electrons to bocome
eherged i.e is a covalent compound because both oxyoen and carter lectrons to form stable bonds i.e . is an ionic compand calcium iso of particles in the gaseous produet.

Ask by Cummings Carter. in Uganda

Mar 29,2025

UpStudy AI · Accepted Answer

- The decomposition reaction is given by  
  $$
  \mathrm{CaCO}_{3} \rightarrow \mathrm{CaO}_{(s)} + \mathrm{CO}_{2(q)}
  $$

- In this reaction, we have three substances, each belonging to a different category based on their bonding and structure:

1. **$$\mathrm{CaCO}_{3}$$ – Ionic Compound:**  
     - $$\mathrm{CaCO}_{3}$$ is composed of calcium cations $$\mathrm{Ca}^{2+}$$ and carbonate anions $$\mathrm{CO}_{3}^{2-}$$.  
     - Ionic compounds form a solid crystal lattice due to the electrostatic attractions between the oppositely charged ions.  
     - This is similar to compounds like $$\mathrm{NaCl}$$, where sodium and chloride ions are held together by ionic bonds.

2. **$$\mathrm{CaO}$$ – Ionic Compound:**  
     - $$\mathrm{CaO}$$ is made up of calcium cations $$\mathrm{Ca}^{2+}$$ and oxide anions $$\mathrm{O}^{2-}$$.  
     - Just like $$\mathrm{CaCO}_{3}$$, $$\mathrm{CaO}$$ forms an ionic lattice structure due to strong ionic bonds.
  
  3. **$$\mathrm{CO}_{2}$$ – Covalent Compound:**  
     - $$\mathrm{CO}_{2}$$ is a molecular compound in which carbon and oxygen atoms are bonded by covalent bonds.  
     - In covalent compounds, atoms share electrons to attain stable electron configurations.  
     - This type of compound is similar in behavior to $$\mathrm{SO}_{2}$$, where atoms are held together by shared (covalent) electrons.

- Thus, in the decomposition reaction of limestone:
  - $$\mathrm{CaCO}_{3}$$ is an ionic compound.
  - $$\mathrm{CaO}$$ is also an ionic compound.
  - $$\mathrm{CO}_{2}$$ is a covalent compound.
- **$$\mathrm{CaCO}_{3}$$**: Ionic compound (like $$\mathrm{NaCl}$$) - **$$\mathrm{CaO}$$**: Ionic compound - **$$\mathrm{CO}_{2}$$**: Covalent compound

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