19.1 and 19.2

Neutral solutions have a pH of:

• 0

• 1

• 7

• 14

Which is true?

• pH of less than 7 is basic; pH of more than 7 is acidic

• pH of less than 7 is acidic; pH of more than 7 is basic

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

What are properties of acids?

• Bitter, slippery, ph above 7
• Sour, reacts with metals, ph below 7
• Sour, reacts with metals, ph above 7
• Bitter, ph of 7, does not react with metals

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

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

• acids

• bases

• enzymes

• neutral

According to the pH range which substance is more basic than water?

• Hydrochloric acid
• cabbage
• milk of magnesia 
• Lemon Juice 

Tags

NGSS.MS-PS1-2

According to the pH range which substance is more acidic than lemon juice

• Hydrochloric acid
• cabbage
• milk
• Water 

Tags

NGSS.MS-PS1-2

BASE + ACID ----> SALT +?

• water
• oxygen
• hydrogen ion
• hydroxide ion

Tags

NGSS.MS-PS1-5

What is the [H+] if the pH is 4.0?

• 1.0 x 10-10  M
• 1.0 x 10-4  M
• 1.0 x 10-14  M
• 1.0 x 10-7  M