Question

What is an acid? Select all that apply.

A substance that releases hydroxide ions in water
A substance that releases hydrogen ions in water
A substance that tastes sour
A substance with a pH below 7
A substance that tastes bitter

Answer 1

A substance that releases hydrogen ions in water.; A substance that tastes sour.; A substance with a pH below 7.

Step-by-step explanation:

Answer 2

A substance that releases hydrogen ions in water.; A substance that tastes sour.; A substance with a pH below 7.

Step-by-step explanation:

An acid reacts with water releasing Hydrogen ions, this leads to a decrease in pH, below neutral or 7. The Hydrogen ions also give a sour taste.