Understanding Alkalines and Acids

An alkaline is:

• is a base which dissolves in water to form a solution that contains hydroxide (OH-) ions.​

• is a base which stays the same in water to form a solution that contains hydroxide

  (stomach acids)

What is pH?

• pH is a measure of temperature
• pH is used to measure the strength of an aqueous acid or alkali.

• pH is a measure of pressure
• pH is a measure of volume

Valency is the number of electrons lost, gained or shared during bonding.

So, if C is 2.4, what would be its valency?

• 2
• 8
• 6
• 4

Iconic Bonding:

Li + O

=?

(hint: valency swapping)

What is the taste of acids?

• Sweet

• Sour

• Bitter

• Salty

How can acids and alkalines be classified based on their ability to dissociate in water?

• By their color

• By their taste

• By their ability to conduct electricity

• By their ability to dissociate in water

Which of the following is an example of a strong alkaline?

• Sulfuric acid

• Nitric acid

• Potassium hydroxide

• Calcium hydroxide

Indicators are substances that change color in the presence of acids or ___

How does pH affect the chemical properties of substances?

Soap water is an acid.

False or True?