Here are some chemistry questions: 1. Briefly describe the method of preparing soluble salt. 2. State 3…

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Here are some chemistry questions: 1. Briefly describe the method of preparing soluble salt. 2. State 3 examples of insoluble salt. 3. Name the following compounds: K2CrO4, Pb(NO3)2, CaCO3, Na2CO3.10H

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Here are the answers to your chemistry questions:

Briefly describe the method of preparing soluble salt.

Soluble salts can be prepared by reacting an acid with an excess of an insoluble reactant (like a metal, metal oxide, or metal carbonate), filtering off the unreacted solid, and then crystallizing the salt from the solution.

React a dilute acid with an excess of an insoluble base (e.g., metal oxide or carbonate) or a reactive metal.
Filter the mixture to remove any unreacted solid.
Heat the filtrate to evaporate some of the water, creating a concentrated solution.
Allow the concentrated solution to cool slowly, which causes the salt to crystallize.
Separate the crystals by filtration and dry them, for example, between filter papers.
1. State 3 examples of insoluble salt.
  
  Here are three examples of insoluble salts:
  
  Calcium carbonate ( $\text{CaCO}_3$ )
  
  Barium sulfate ( $\text{BaSO}_4$ )
  
  Silver chloride ( $\text{AgCl}$ )
2. Name the following compounds:
  
  i) $\text{K}_2\text{CrO}_4$ : Potassium Chromate
  
  ii) $\text{Pb(NO}_3)_2$ : Lead(II) Nitrate
  
  iii) $\text{CaCO}_3$ : Calcium Carbonate
  
  iv) $\text{Na}_2\text{CO}_3 \cdot 10\text{H}_2\text{O}$ : Sodium Carbonate Decahydrate
  
  v) $\text{FeSO}_4 \cdot 5\text{H}_2\text{O}$ : Iron(II) Sulfate Pentahydrate

Here are some chemistry questions: 1. Briefly describe the method of preparing soluble salt. 2. State 3 examples of insoluble salt. 3. Name the following compounds: K2CrO4, Pb(NO3)2, CaCO3, Na2CO3.10H

Step-by-step solution

React a dilute acid with an excess of an insoluble base (e.g., metal oxide or carbonate) or a reactive metal.

Filter the mixture to remove any unreacted solid.

Heat the filtrate to evaporate some of the water, creating a concentrated solution.

Allow the concentrated solution to cool slowly, which causes the salt to crystallize.

Separate the crystals by filtration and dry them, for example, between filter papers.

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