Acids

Sour taste, turning blue litmus paper red, and ability to react with metals to produce hydrogen gas.

Bitter taste, slippery feel, and turning red litmus paper blue.

Hydrochloric acid (HCl), sulfuric acid (H2SO4), and citric acid (C6H8O7).

<p>Sodium hydroxide (NaOH), potassium hydroxide (KOH), and ammonia (NH3).</p> Signup and view all the answers

<p>Indicators are substances that change their color when they come into contact with an acidic or basic solution. They are used to identify and distinguish between acids, bases, and neutral substances.</p> Signup and view all the answers