Identify and write the type of reaction represented by following equations.
1. CaCO3 → CaO + CO2
2. CaO + H2O → Ca(OH)2
3. 2FeSO4→ Fe2O3 + SO2 + SO3
4. NH4Cl NH3 + HCl
5. 2Ca + + O2 → 2CaO
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Identify and write the type of reaction represented by following equations.
1. CaCO3 → CaO + CO2
2. CaO + H2O → Ca(OH)2
3. 2FeSO4→ Fe2O3 + SO2 + SO3
4. NH4Cl NH3 + HCl
5. 2Ca + + O2 → 2CaO
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Explanation:
1. Decomposition reaction:
CaCO3 → CaO + CO2
• This is a decomposition reaction because a single reactant ( CaCO3) breaks down into two or more simpler products (CaO and CO2).
2. Neutralization reaction: CaO + H2O→ Ca(OH)2
• This is a neutralization reaction because an oxide reacts with water (H2O) to form a hydroxide (Ca(OH)2), which is a common characteristic of neutralization reactions.
3. Decomposition reaction:
2FeSO4→ Fe2O3 + SO2 + SO3
• This is a decomposition reaction where a complex compound ( 2FeSO4) breaks down into simpler substances (Fe2O3, SO2, and SO3).
4. Decomposition reaction:
NH4Cl NH3 + HCl
• This is a decomposition reaction where NH4Cl breaks down into ammonia (NH3) and hydrogen chloride (HCI).
5. Combination reaction: 2Ca + O2 → 2CaO
• This is a combination reaction as two or more substances (2Ca and O2) combine to form a single product (2CaO).
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