PhET pH Scale

Question number 4, orange juice pH?

• 2.5

• 3.5

• 6.5

• 6

Question number 4, strongest acid?

• Vomit

• Battery acid

• Coffee

• Drain cleaner

Question number 9, vomit H₃O+?

• 1.0 x 10^-2

• 1.0 x 10

• 1.0 x 10^-12

• 1.0 x 10⁴

Question number 9, blood OH-?

• 4.0 x 10^-8

• 2.8 x 10^-7

• H₂O

• 2.5 x 10^-7

Question number 10 A?

• Decreases

• Increases

• Stays the same

• None of the answers are correct