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Chemistry

SALTS — Ions present in salts   
27a. Normal salt [formation]NaOH [excess] + H2SO4 ⟶ …………… + H2O
27b. Acid salt [formation]NaOH [insufficient] + H2SO4 ⟶ …………… + H2O
Preparation of salts — General methods   
Direct combination — Synthesis   
28. Iron and Chloride — salt iron [III] ChlorideFe + Cl2 ⟶ ……………
29. Zinc and sulphur — salt zinc sulphideZn + S ⟶ ……………
Displacement — Action of dilute acid on active metals   
30. Iron — salt iron [II] sulphateFe + H2SO4 ⟶ …………… + …………… [g]
31. Zinc — salt zinc sulphateZn + H2SO4 ⟶ …………… + …………… [g]
32. Magnesium — salt magnesium chlorideMg + HCl ⟶ …………… + …………… [g]
Precipitation — by double decomposition of two salt solutions   
33. Lead nitrate and sodium chloridePb(NO3)2 + NaCl ⟶ …………… + …………… ↓
34. Calcium chloride and sodium carbonateCaCl2 + Na2CO3 ⟶ …………… + …………… ↓
Neutralization — Action of dilute acid on insoluble base   
35. Oxide — salt copper sulphateCuO + H2SO4 ⟶ …………… + ……………
36. Hydroxide — salt copper sulphateCu(OH)2 + H2SO4 ⟶ …………… + ……………
Neutralization — [Titration] Action of dilute acid on an alkali   
37. Hydroxide — salt sodium chlorideNaOH + HCl ⟶ …………… + ……………
38. Hydroxide — salt ammonium chlorideNH4OH + HCl ⟶ …………… + ……………
Action of dilute acid on carbonate & bicarbonate   
39. Carbonate — salt lead nitratePbCO3 + HNO3 ⟶ …………… + …………… + …………… [g]
40. Carbonate — salt copper chlorideCuCO3 + HCl ⟶ …………… + …………… + …………… [g]
41. Bicarbonate — salt potassium sulphateKHCO3 + H2SO4 ⟶ …………… + …………… + …………… [g]

Acids Bases Salts

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Answer

SALTS — Ions present in salts   
27a. Normal salt [formation]2NaOH [excess] + H2SO4Na2SO4 + 2H2O
27b. Acid salt [formation]NaOH [insufficient] + H2SO4NaHSO4 + H2O
Preparation of salts — General methods   
Direct combination — Synthesis   
28. Iron and Chloride — salt iron [III] Chloride2Fe + 3Cl22FeCl3
29. Zinc and sulphur — salt zinc sulphideZn + S ⟶ ZnS
Displacement — Action of dilute acid on active metals   
30. Iron — salt iron [II] sulphateFe + H2SO4FeSO4 + H2 [g]
31. Zinc — salt zinc sulphateZn + H2SO4ZnSO4 + H2 [g]
32. Magnesium — salt magnesium chlorideMg + 2HCl ⟶ MgCl2 + H2 [g]
Precipitation — by double decomposition of two salt solutions   
33. Lead nitrate and sodium chloridePb(NO3)2 + 2NaCl ⟶ 2NaNO3 + PbCl2
34. Calcium chloride and sodium carbonateCaCl2 + Na2CO32NaCl + CaCO3
Neutralization — Action of dilute acid on insoluble base   
35. Oxide — salt copper sulphateCuO + H2SO4CuSO4 + H2O
36. Hydroxide — salt copper sulphateCu(OH)2 + H2SO4CuSO4 + 2H2O
Neutralization — [Titration] Action of dilute acid on an alkali   
37. Hydroxide — salt sodium chlorideNaOH + HCl ⟶ NaCl + H2O
38. Hydroxide — salt ammonium chlorideNH4OH + HCl ⟶ NH4Cl + H2O
Action of dilute acid on carbonate & bicarbonate   
39. Carbonate — salt lead nitratePbCO3 + 2HNO3Pb(NO3)2 + H2O + CO2 [g]
40. Carbonate — salt copper chlorideCuCO3 + 2HCl ⟶ CuCl2 + H2O + CO2 [g]
41. Bicarbonate — salt potassium sulphate2KHCO3 + H2SO4K2SO4 + 2H2O + 2CO2 [g]

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