Chemistry: Acids, Bases, and pH Scale

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Questions and Answers

What is the primary characteristic of acids when dissolved in water?

Releasing hydrogen ions (H⁺)

What is the purpose of hydrochloric acid (HCl) in the human body?

Aiding digestion in gastric juices

What is the distinguishing feature of bases when dissolved in water?

Releasing hydroxide ions (OH⁻)

What is the common use of magnesium hydroxide (Mg(OH)₂) in the human body?

As an antacid to neutralize excess stomach acid Signup and view all the answers

How can acids be simply identified using litmus paper?

They turn blue litmus paper red Signup and view all the answers

What is the pH range of the pH scale, and what does a pH of 7 represent?

The pH scale ranges from 0 to 14, and a pH of 7 represents neutrality. Signup and view all the answers

What happens to the acidity of a substance as the pH value decreases?

As the pH value decreases, the acidity of the substance increases. Signup and view all the answers

What is the significance of understanding pH in agriculture?

Understanding pH in agriculture helps farmers select suitable crops and adjust soil conditions for optimal growth. Signup and view all the answers

What is the importance of pH control in industrial processes?

pH control is crucial in industries such as water treatment and food production to ensure optimal conditions for processes. Signup and view all the answers

What is the broader significance of understanding acids, bases, and the pH scale?

Understanding acids, bases, and the pH scale forms the foundation of chemical understanding, influencing scientific research, industrial processes, and everyday life. Signup and view all the answers