Acids & Bases

What is the taste of bases?

• Sweet

• Sour

• Bitter

• Salty

What is the pH scale?

• A measure of how acidic or basic a solution is, ranging from 0 to 14, with 7 being neutral.

• A scale that measures the temperature of a solution.

• A scale that indicates the concentration of dissolved oxygen in water.

• A measure of the electrical conductivity of a solution.

What is an example of a common household acid?

• Vinegar is a common household acid.

• Bleach is a common household acid.

• Ammonia is a common household acid.

• Hydrogen peroxide is a common household acid.

What colors does red cabbage water turn in acids?

• Blue & Green

• Yellow & Orange

• Red & Pink

• Purple & Brown

What is the role of indicators in acid-base chemistry?

• Indicators are substances that change color in response to the pH of a solution, helping to identify whether it is acidic or basic.

• Indicators are used to neutralize acids and bases in a solution.

• Indicators are chemicals that increase the pH of a solution.

• Indicators are used to measure the temperature of a solution.

What happens to litmus paper when it comes in contact with a base?

• Litmus paper turns red when it comes in contact with a base.

• Litmus paper remains unchanged when it comes in contact with a base.

• Litmus paper turns blue when it comes in contact with a base.

• Litmus paper turns green when it comes in contact with a base.

What happens to litmus paper when it comes in contact with an acid?

• Litmus paper turns blue when it comes in contact with an acid.

• Litmus paper remains unchanged when it comes in contact with an acid.

• Litmus paper turns red when it comes in contact with an acid.

• Litmus paper turns green when it comes in contact with an acid.

What is a neutral substance?

• A substance with a pH of 7, neither acidic nor basic.

• A substance that is highly acidic with a pH below 7.

• A substance that is highly basic with a pH above 7.

• A substance that can conduct electricity.

What is the taste of acids?

• Sweet

• Bitter

• Sour

• Salty

What color change indicates a basic solution using a universal indicator?

• Red or orange color change

• Yellow or green color change

• Blue or purple color change

• Pink or white color change