# 1เลือกประเภท
What defines an acid?
คำตอบทั้งหมดถูกซ่อนอยู่ในขณะนี้
A substance with pH > 7 that tastes bitter
A substance that releases H⁺ ions in water and has pH < 7
A substance that neutralizes bases and has pH > 7
A substance that tastes sweet and has pH = 7


