Question

the source of light and opaque object is hanged is the sky , where there is a huge ground . where the shadow will form?
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Answer 1

Answer:

The compound is sodium carbonate decahydrate (Na2CO3.10H2O) also called washing soda.

It is prepared by Solvay process.The reactions involved are:

NaCl + CO2 + NH3 + H2O → NaHCO3 + NH4Cl

2 NaHCO 3 → Na2CO3 + CO2 + H2O

Na2CO3 + 10H20 → Na2CO3.10H2O

Answer 2

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The compound is sodium carbonate decahydrate (Na2CO3.10H2O) also called washing soda.

It is prepared by Solvay process.The reactions involved are:

NaCl + CO2 + NH3 + H2O → NaHCO3 + NH4Cl

2 NaHCO 3 → Na2CO3 + CO2 + H2O

Na2CO3 + 10H20 → Na2CO3.10H2O