PhET pH Scale Simulation Quiz

What does a pH value of 7 indicate on the pH scale?

• Acidic

• Neutral

• Basic

• Highly acidic

Which of the following pH values indicates a basic substance?

• 3

• 7

• 10

• 1

What pH values correspond to acids?

• pH less than 7

• pH equal to 7

• pH greater than 7

• pH equal to 14

What pH values correspond to bases?

• pH less than 7

• pH equal to 7

• pH greater than 7

• pH equal to 0

As the pH approaches 0, what happens to the concentration of H₃O⁺ ions?

• It decreases

• It remains the same

• It increases

• It becomes zero

As the pH approaches 0, what happens to the concentration of OH⁻ ions?

• It decreases

• It remains the same

• It increases

• It becomes zero

As a solution becomes more acidic, what happens to the concentration of H₃O⁺ ions?

• It increases

• It decreases

• It remains the same

• It fluctuates

What happens to the concentration of OH⁻ ions as the pH approaches 14?

• It increases

• It decreases

• It remains the same

• It fluctuates

What type of scale is the pH scale?

• Linear

• Logarithmic

• Exponential

• Arithmetic

Is there any relationship between the H₃O⁺ concentration and the pH?

• Yes, they are directly proportional.

• Yes, they are inversely proportional.

• No, there is no relationship.

• Yes, they are equal.