CHEMISTRY- 13.4: PRECIPITATION REACTIONS AND MORE
QUESTIONS WITH COMPLETE SOLUTIONS
How does a precipitation reaction occur? Hence how is a precipitate
formed? Ans✓✓✓ If ions in a solution combine to form a new
compound that insoluble in water. The insoluble compound formed in
such a reaction is called a precipitate.
Where do precipitation reactions occur naturally? How? Ans✓✓✓
Undersea hydrothermal vents. The vents release superheated solutions
containing sulfides, which then combine with metal ions to form
precipitates of mineral sulfides, creating the chimney-like structures.
What can be used to predict which compound, if any, will precipitate in
a reaction Ans✓✓✓ Solubility Tables
List things that precipitation reactions are used for? Ans✓✓✓ 1. To
remove minerals from drinking water
2. To remove heavy metals/toxic chemicals from water/wastewater
3. In the purification plants of reservoirs
4. Production of colored pigments for paints and yes
Precipitation reactions are useful for Ans✓✓✓ - identifying ions based
on the type of precipitate formed
- this is the basis of Gravimeter Analysis
, Define the term full equation. Ans✓✓✓ An equation that uses formulas
spectator ions Ans✓✓✓ Ions that are not directly involved in the
formation of the precipitate (do not undergo a chemical change) and
remain in the solution.
Define the term ionic equation Ans✓✓✓ An equation in which spectator
ions are not included.
Precipitation Ans✓✓✓ A reaction in which a precipitate is produced
precipitate Ans✓✓✓ insoluble solid which forms when two IONIC
SOLUTIONS mix together
Features of Precipitation Reactions Ans✓✓✓ - usually bright green in
color (not colourless)
- the precipitate can be separated from the reaction mixture
- most are very fast reactions
- most occur between ions
- the ions that do not precipitate and remain dissolved in solution are
called spectator ions.
Chemical Equations for Precipitation Reaction are represented by..
Ans✓✓✓ by writing two equations
QUESTIONS WITH COMPLETE SOLUTIONS
How does a precipitation reaction occur? Hence how is a precipitate
formed? Ans✓✓✓ If ions in a solution combine to form a new
compound that insoluble in water. The insoluble compound formed in
such a reaction is called a precipitate.
Where do precipitation reactions occur naturally? How? Ans✓✓✓
Undersea hydrothermal vents. The vents release superheated solutions
containing sulfides, which then combine with metal ions to form
precipitates of mineral sulfides, creating the chimney-like structures.
What can be used to predict which compound, if any, will precipitate in
a reaction Ans✓✓✓ Solubility Tables
List things that precipitation reactions are used for? Ans✓✓✓ 1. To
remove minerals from drinking water
2. To remove heavy metals/toxic chemicals from water/wastewater
3. In the purification plants of reservoirs
4. Production of colored pigments for paints and yes
Precipitation reactions are useful for Ans✓✓✓ - identifying ions based
on the type of precipitate formed
- this is the basis of Gravimeter Analysis
, Define the term full equation. Ans✓✓✓ An equation that uses formulas
spectator ions Ans✓✓✓ Ions that are not directly involved in the
formation of the precipitate (do not undergo a chemical change) and
remain in the solution.
Define the term ionic equation Ans✓✓✓ An equation in which spectator
ions are not included.
Precipitation Ans✓✓✓ A reaction in which a precipitate is produced
precipitate Ans✓✓✓ insoluble solid which forms when two IONIC
SOLUTIONS mix together
Features of Precipitation Reactions Ans✓✓✓ - usually bright green in
color (not colourless)
- the precipitate can be separated from the reaction mixture
- most are very fast reactions
- most occur between ions
- the ions that do not precipitate and remain dissolved in solution are
called spectator ions.
Chemical Equations for Precipitation Reaction are represented by..
Ans✓✓✓ by writing two equations
