Acids and Bases

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

Tags

NGSS.MS-PS1-2

The pH of a solution is tested, and it is found to be a basic solution. Of the following choices, what could the pH have been?

• 3
• 9
• 7
• 5

Human blood has a pH between 7.35 and 7.45. Which of the following best describes human blood?

• strongly acidic
• slightly acidic
• strongly basic
• slightly basic

Tags

NGSS.MS-PS1-2

Which of these pH values would indicate that a solution is a weak base?

• 4
• 5.6
• 8
• 13

When dissolved in water, acids produce:

• bases
• salts
• hydrogen ions
• hydroxide ions

Tags

NGSS.MS-PS1-2

Which type of ion does a base produce when it is dissolved in water?

• oxide
• oxygen
• hydrogen
• hydroxide

Tags

NGSS.MS-PS1-2

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

A hydrogen ion, H⁺, is the same as a(n):

• neutron
• electron
• proton
• hydroxide ion

Tags

NGSS.MS-PS1-1

A compound that changes color when it is in contact with an acid or base is called______________

• Acid
• Base 
• Neutral
• Indicator

Tags

NGSS.MS-PS1-2

On the pH scale what numbers are acids?

• 8-14
• 0-7
• 7
• 1