Acid-Base Practice

Which of the following word pairs correctly completes the sentence below?
_______ are corrosive substances characterized as having a strong smell, a sour taste, and a _______.

• Acids; pH less than 7
• Acids; pH greater than 7
• Bases; pH greater than 7
• Bases; pH less than 7

Tags

CCSS.RI.9-10.4

CCSS.RI.9-10.4

CCSS.RI.11-12.4

CCSS.RI.7.4

CCSS.RI.8.4

Holly has an unknown substance in a beaker. She wants to determine the relative pH of the unknown substance. She places a piece of blue litmus paper into the substance, and the litmus paper stays blue.
What are two possibilities for the solution in the beaker?

• is a base.
• has a neutral pH.
  
• is an acid.
• does not have a pH.

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

What would be considered the weakest base? 

• 8
• 14
• 7.8
• 11.6

Is the following compound an acid or a base? 
Ca(OH)₂

• Acid
• Base

Tags

NGSS.HS-PS1-2

strong BASE +strong ACID ----> SALT +?

• water

• oxygen

• hydrogen ion

• hydroxide ion

A(n) ______ is a substance with a pH less than 7

• Acid
• Alkaline
• Base
• Buffer

What is the formula for nitric acid?

• HNO₂
• HNO₃
• HNO₄
• H₂NO₃

Name HF

• hydrofluoric acid
• Hypofluoric acid
• hydrogen fluorine acid
• fluoric acid

HNO₂

• hydronitrogen
• hydrogen nitrogen oxygen
• nitrous acid
• nitric acid