Neutralizing Acids and Bases

Which of the following is a common misconception about acids and bases?

• All acids are liquid.
• Bases are always safe to handle.
• Acids are always harmful.
• Acids can neutralize bases.

How can students determine the amount of base needed to neutralize an acidic solution?

• By measuring the temperature change.
• By counting the number of drops added.
• By observing the color change of the indicator.
• By calculating the volume of the solution.

Which statement about acids and bases is true?

• All acids are strong.
• All bases are weak.
• Acids can neutralize bases.
• Bases cannot neutralize acids.

Which of the following statements is true about concentrated acidic solutions?

• They are always neutral.
• They do not need any base to neutralize.
• They require more base to neutralize.
• They require less base to neutralize.

How does the concentration of an acid affect the amount of base needed for neutralization?

• More concentrated acids require less base to neutralize.
• Less concentrated acids require more base to neutralize.
• More concentrated acids require more base to neutralize.
• The concentration of the acid does not affect the amount of base needed.

If a more concentrated base is used, what can be inferred about the amount of acid needed for neutralization?

• More acid is needed.
• The same amount of acid is needed.
• Less acid is needed.
• No acid is needed.

How does the pH change when a base is added to an acidic solution?

• The pH decreases.
• The pH increases.
• The pH remains the same.
• The pH fluctuates randomly.

What is the primary indicator used in the neutralization experiment described?

• Litmus paper
• Universal indicator
• Bromothymol blue
• Phenolphthalein

If you add three drops of citric acid to a solution, how many drops of sodium carbonate are needed to neutralize it?

• Three drops.
• One drop.
• It depends on the concentration of the citric acid.
• Five drops.

What happens to the number of H3O+ ions when a base is added to an acidic solution?

• They disappear.
• They remain the same.
• They decrease.
• They increase.