Acid Bases

What characteristic defines an acid when dissolved in water?

• They produce OH- ions.

• They produce H+ ions.

• They accept H+ ions.

• They are always corrosive.

Who developed the pH scale and in what year?

• S. P. L. Sørensen, 1909

• Marie Curie, 1911

• Louis Pasteur, 1864

• Dmitri Mendeleev, 1869

On the pH scale, what range indicates an acidic substance?

• Above 7

• Exactly 7

• Below 7

• Between 7 and 14

What is the primary chemical difference between acids and bases when dissolved in water?

• Acids produce hydroxide ions (OH-), while bases produce hydrogen ions (H+).

• Acids produce hydrogen ions (H+), while bases produce hydroxide ions (OH-).

• Acids accept hydrogen ions (H+), while bases produce hydroxide ions (OH-).

• Acids produce hydrogen ions (H+), while bases accept hydrogen ions (H+).

They all involve ________ ions being passed around

• Electric

• the video did not say

• Hydrogen

• hydroxide