Acids and Bases and pH

Pure water is _______ on the pH scale.

• Acid
• Base
• Neutral

What is the range of pH values in an acidic solution?

• 0-6
• 8-14
• 15-239058204958
• pH = 7

If the pH of a solution is 9, it is a....

• acid
• base
• both
• none

What is the range of pH values in an alkali (basic) solution?

• 0-6
• 8-14
• 15-239058204958
• pH = 7

Tags

NGSS.HS-ESS2-5

Which is the stronger acid?

• pH 1
• pH 4
• pH 8
• pH 13

If an acid is combined with a base of equal strength, the result will most likely be

• a neutral solution.
• a stronger acid.
• impossible to tell without testing the pH.
• a stronger base

Which of the following is true about acids and bases?

• The lower the pH, the stronger the acid
• the higher the pH, the stronger the acid
• The lower the pH, the more neutral the acid
• The higher the pH, the weaker the base

Which of the following word pairs correctly completes the sentence below?

_______ are corrosive substances characterized as having a oily feel, a bitter taste, and a _______.

• Acids; pH less than 7

• Acids; pH greater than 7

• Bases; pH greater than 7

• Bases; pH less than 7

Acids produce _________ ions when they break down or dissocciate. 

• Hydroxide (OH-)
• Water
• Chlorine (Cl-)
• Hydrogen (H+)

Tags

NGSS.MS-PS1-2

If a substance has a pH of 10 it is considered

• Acidic
• Basic
• Neutral