answer the above 3 questions please....
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9)when marble is put in hcl gives carbon dioxide
when zinc is put it gives hydrogen
10)When crystals of washing soda are left open in the dry air, it loses water of crystallization.
11)In soap manufacturing process, after the saponification reaction, soap is washed with concentrated brine solution (NaCl) to separate glycerin. Salt separates glycerol from the water. Hence the "neat soap" is precipitated from the saponification solution by adding common salt
when zinc is put it gives hydrogen
10)When crystals of washing soda are left open in the dry air, it loses water of crystallization.
11)In soap manufacturing process, after the saponification reaction, soap is washed with concentrated brine solution (NaCl) to separate glycerin. Salt separates glycerol from the water. Hence the "neat soap" is precipitated from the saponification solution by adding common salt
jiviteshot3anr:
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(9)HCL with marbles-gives CO2
HCL with zinc granules - give
hydrogen gas
(10)It will loose water of crystallization
(11)Because Common salt is added to the mixture to make the soap come out of solution. Though most of the soap separates out on its own but some of it remains in the solution.
HCL with zinc granules - give
hydrogen gas
(10)It will loose water of crystallization
(11)Because Common salt is added to the mixture to make the soap come out of solution. Though most of the soap separates out on its own but some of it remains in the solution.
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