Why is addition of zinc nitrate in water is a physical change but addition of zinc nitrate to dilute nitric acid is a chemical change
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Give Reason Why: Addition of zinc to dilute nitric acid is a chemical change, but additional of zinc to nitrate to water is a physical change
Zinc nitrate is a colorless crystalline solid. Noncombustible, but accelerates the burning of combustible materials. If large quantities are involved in a fire or the combustible material is finely divided, an explosion may result. Prolonged exposure to fire or heat may result in an explosion. Toxic oxides of nitrogen are produced in fires involving this material. It is used as a catalyst in the manufacture of other chemicals, in medicine, and in dyes.
Zinc nitrate is a colorless crystalline solid. Noncombustible, but accelerates the burning of combustible materials. If large quantities are involved in a fire or the combustible material is finely divided, an explosion may result. Prolonged exposure to fire or heat may result in an explosion. Toxic oxides of nitrogen are produced in fires involving this material. It is used as a catalyst in the manufacture of other chemicals, in medicine, and in dyes.
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Hi there ✋
When Zinc nitrate is pored in the water it does not react with water.
It dissociates into the ions Zn⁺ and NO₃²⁻ . No zinc hydroxide is formed.
Thus addition of Zinc nitrate into the water is a Physical change, as chemical properties of zinc nitrate in water remain as such.
While adding Zinc to dilute Nitric acid , we get
3Zn (s) + 8HNO₃ (dil) (l) → 3Zn(NO₃)₂ + 2NO+ 4H₂O
which is a Chemical reaction.Because zinc becomes zinc nitrate, besides producing nitrogen oxide and water.
Hope this helps..:"))
When Zinc nitrate is pored in the water it does not react with water.
It dissociates into the ions Zn⁺ and NO₃²⁻ . No zinc hydroxide is formed.
Thus addition of Zinc nitrate into the water is a Physical change, as chemical properties of zinc nitrate in water remain as such.
While adding Zinc to dilute Nitric acid , we get
3Zn (s) + 8HNO₃ (dil) (l) → 3Zn(NO₃)₂ + 2NO+ 4H₂O
which is a Chemical reaction.Because zinc becomes zinc nitrate, besides producing nitrogen oxide and water.
Hope this helps..:"))
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