Acid Base Sub Assignment

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.11-12.4

CCSS.RI.7.4

CCSS.RI.8.4

CCSS.RI.9-10.4

CCSS.RI.9-10.4

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

Many cleaning solutions are bases. Which of the following is a property of most bases?

• feels slippery
• white color
• can only be liquid
• tastes sour

Which of the following is the strongest base?

• oven cleaner - 13.5

• lemon juice - 2.5

• soap - 10

• blood - 7.4

Solutions that have more OH– ions than H+ ions are

• acids

• bases

• enzymes

• neutral

What type of solution is formed when the H+ ions equal the OH- ions?

• acidic

• basic or alkaline

• neutral

• enzymatic

Which statement is true when acids and bases are mixed together?

• acids become stronger
• bases become stronger
• there is no change
• they neutralize each other

Tags

NGSS.MS-PS1-2

What is the pH of a 1 x 10^-8 M solution of HNO₃?

• 8
• 6
• 7
• 7.5

What is the pOH of a solution that has a pH of 2?

• 10
• 12
• 14
• 1