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Acids and Bases Chemistry Quiz

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Questions and Answers

Which of the following is a characteristic of an acid?

It turns blue litmus paper red
It tastes sour (correct)
It has a pH greater than 7
It feels slippery to the touch

Which of the following is a characteristic of a base?

It tastes sour
It has a pH less than 7
It reacts with acids to form salts and water
It turns red litmus paper blue (correct)

What is the pH of a neutral solution?

10
0
7 (correct)
14

What is the endpoint of a titration?

When the indicator changes color (C) Signup and view all the answers

What is the purpose of a titration in acid-base chemistry?

To determine the concentration of an unknown acid or base (C) Signup and view all the answers

What is the difference between a strong acid and a weak acid?

A strong acid completely dissociates in water, while a weak acid only partially dissociates (D) Signup and view all the answers

What is the significance of the Modified Arrhenius theory in the study of acids and bases?

The Modified Arrhenius theory expands on the original theory by including substances other than hydrogen ions and hydroxide ions as acids and bases, such as ammonia and carbonate. Signup and view all the answers

How does the use of indicators in titrations contribute to their accuracy?

Indicators are substances that change color in response to changes in pH, allowing for a visual indication of the endpoint of the titration, which increases accuracy. Signup and view all the answers

What is the difference between limiting and excess reagents in a chemical reaction involving acids and bases?

Limiting reagents are completely consumed in a reaction, while excess reagents remain after the reaction is complete, affecting the amount of product that can be formed. Signup and view all the answers