Question

1.An acid is best defined as:

Answer 1

1.An acid is best defined as: a. a substance with a pH between 0 and 7.
2.A base is best defined as: b. a substance with a pH between 7 an 14.
3.A substance that tastes sour and dissociates in water would best be characterized as a(n): a. acid
4.Angela is working with a substance that is commonly found in detergents. This substance has a pH of 8.1. Angela is working with a(n): b. base
5._________ is a solution that resists changes in pH by accepting H+ ions or donating H+ ions when the levels change: d. A buffer
6.Farmers do not need to know the impact of pH levels in order to be effective: False
7.Most rain water is between the pH of _______: a. 6 and 7
8.Human blood has a pH of: c. 7.4
9.Ellen is jogging. As her body's metabolism becomes more active, carbon dioxide levels increase, resulting in a decrease in pH. Fortunately, her ___________ in the blood protect against large changes in pH: c. buffers
10.Ellen is jogging. As her body's metabolism becomes more active, how will her body protect itself initially against acidosis?: b. Ellen's body will regulate pH by using buffers.