Which of the following is the formula of washing soda?
A. NaHCO3
B. NaCl
C. CaSO4.1/2H2O
D. Na2CO3.10H2O
Answer:D
Which of the following is the formula of washing soda?
A. NaHCO3 B. NaCl C. CaSO4.1/2H2O D. Na2CO3.10H2O