Answer:
A. It is a highly basic substance.
Step-by-step explanation:
Soda ash is the trade name of sodium carbonate (NaCO₃)
Sodium carbonate is a highly basic substance as 100% of the substance is equivalent to 58.48% of sodium oxide.
Its pH is 10.97
It reacts with acids producing a salt, carbon (Iv) oxide and water.
Na₂CO₃₍s₎ + 2HCl₍aq₎ → 2NaCl₍aq₎ + CO₂ +H₂O₍l₎