Acids, Bases and pH Overview

Acids, Bases and pH Overview

Ms. Bev Taylor

Multiple Choice

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

Multiple Choice

Soap is a weak base.  What is true about the taste of bases?

• they taste sour
• they taste sweet
• they taste bitter
• they taste salty

Multiple Choice

When dissolved in water, bases produce:

• acids
• salts
• hydrogen ions
• hydroxide ions

Multiple Choice

Which of these solutions is an acid?

• Dish Soap: pH of 12
• Tomato Soup: pH of 4
• Baking Soda: pH of 9
• Drain Cleaner: pH of 14

Multiple Choice

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 _______.

• acid pH less than 7

• acid pH greater than 7

• base pH less than 7

• base pH greater than 7

Multiple Choice

What would be considered the weakest base?

• 8

• 7.8

• 11.6

• 14

Multiple Choice

Stronger acids have a pH closer to...

• 7

• 14

• 0

• 9

Multiple Choice

Weaker bases have a pH closer to...

• 8

• 14

• 0

• 4

Multiple Choice

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

Multiple Choice

Strong acids and bases...

• do not break apart into ions (non-electrolyte)
• partially break apart into ions (weak electrolyte)
• completely break apart into ions (non-electrolyte)
• completely break apart into ions (strong electrolyte)

Multiple Choice

Which solution is more concentrated?

Solution 1:

500 mL of water

100 g of salt

pH = 3

Solution 2:

500 mL of water

90 g of salt

pH = 2.4

• Solution 1

• Solution 2

• They have the same concentration

• I have no idea

Multiple Choice

Which solution is more diluted?

Solution 1:

1000 mL of water

60g of salt

Solution 2:

500 mL of water

60 g of salt

• Not enough information to tell

• Solution 1

• Solution 2

• They are equally diluted

Multiple Choice

A substance is found to have the following characteristics:

Very bitter taste

Feels slippery to the touch

Produces OH- ions when dissolved in water

In what category would the substance be classified?

• acid

• base

• enzyme

• fatty acid

Multiple Choice

A neutralization reaction will (almost) always produce...

• water & salt
• water
• salt
• water & carbon

Multiple Choice

In a neutralization reaction, what are the products of a reaction between an acid and a base?

• Another acid and base
• Carbon dioxide and a salt
• Water and a salt
• Either two acids or two bases

Multiple Choice

What might happen if you mixed a strong acid with an equally strong base?

• You would see an explosive chemical reaction.
• The acid would destroy the base.
• The base would destroy the acid.
• You'd wind up with a pH-neutral substance.

Poll

Do you understand that you should complete this USING the slides as many times as needed until you are satisfied with your score and understand that you can review the questions after you complete the quizizz each time?

• Yes, I will do this if necessary because I understand that there is no excuse for not scoring well when I have these options available.

• No, I only complete it one time without even using notes whether I get a good score or not and I do not even review the answers at the end of the quizizz.