Washing soda is chemically represented by _________________?
Correct answer: C. Na2CO3.10H2O
- A. Na2CO3
- B. Na2CO3.H2O
- C. Na2CO3.10H2O
- D. NaHCO3
Explanation
Washing soda is sodium carbonate decahydrate, Na2CO3·10H2O. Anhydrous Na2CO3 is soda ash, while NaHCO3 is baking soda.
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