When a current is passed through a solution of salt water, sodium chloride decomposes according to the following reaction:
2NaCl + 2H2O → 2NaOH + Cl2 + H2
What is the chemical symbol for the starting substance?
A NaCl
B H2O
C Cl2
D NaOH
What is the chemical symbol for the ending substance?
A H2O
B NaOH
C Cl2
D NaCl
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