5 examples of double decomposition reaction.
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1) AgNO3 + NaCl → AgCl + NaNO3
2) BaCl2 + Na2SO4→BaSO4+2NaCl
3) Pb(NO3)2 + 2 KI → 2 KNO3+ PbI2
4) NaHCO3 + CH3COOH → H2CO3 + NaCH3COO
5) NaOH + HCl→ NaCl + H2O
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Answer: A double decomposition reaction is a reaction in which the positive ions and negative ions in two compounds switch to form two new compounds.
Explanation:
1. Ca(OH)2 + 2 NH4Cl = CaCl2 + 2 NH4OH
2. PbCl2 + 2 KI = PbI2 + 2 KCl
3. CuSO4 + H2S = CuS + H2 SO4
4. AgNO3 + KCl = AgCl + KNO3
5. HCl + NaOH = Nacl +H2O
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