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  • Lead Nitrate Sodium Sulfide Molecular Equation

Lead Nitrate Sodium Sulfide Molecular Equation

Deduction of the reaction formula between lead nitrate and sodium sulfide
Taste of lead nitrate ($Pb (NO_ {3}) _ {2} $) mixed with sodium sulfide ($Na_ {2} S $), the chemical change is related to the molecular reaction formula. To understand, it should be changed one by one according to chemical rules.

Lead nitrate, in water, dissociates into lead ions ($Pb ^ {2 +} $) and nitrate ions ($NO_ {3 }^{-}$); sodium sulfide in water, also dissociates into sodium ions ($Na ^ {+} $) and sulfur ions ($S ^ {2 - }$)。 These four interact in the liquid phase to form new compounds.

Lead ions and sulfur ions merge to form lead sulfide ($PbS $). Lead sulfide is black in color and insoluble in water, so it appears to be precipitated. Its sodium ions and nitrate ions still exist in the liquid phase, and there is no chemical change, only a bystander state.

Therefore, the molecular reaction formula can be written as: $Pb (NO_ {3}) _ {2} + Na_ {2} S = PbS? + 2NaNO_ {3} $. This formula is also in line with the law of conservation of quality. The elements of lead, sodium, nitrogen, oxygen, and sulfur are all equal before and after the reaction. In the analysis of chemistry, this formula is essential, which can show the change of substances when lead nitrate and sodium sulfide are mixed. It is also the basis of chemical experiments and chemical industry, and can be the basis for many reactions and applications.