GN6002-CG Board_acids, bases, and salts

Which of the following is a characteristic of acids?

• Slippery to the touch

• Turns litmus paper blue

• Feels soapy

• Sweet taste

What is the pH scale used to measure?

• Concentration of salt

• Temperature

• Acidity or basicity of a solution

• Solubility

A solution with a pH of 7 is considered:

• Acidic

• Basic

• Neutral

• Saturated

When an acid reacts with a base, a salt and what else is formed?

• Water

• Another acid

• Another base

• Carbon dioxide

Baking soda (sodium bicarbonate) is a common household product. What type of compound is it?

• Base

• Salt

• Indicator

• Acid

Examples of strong acids include:

• Hydrochloric acid (HCl)

• Acetic acid (vinegar)

• Citric acid (citrus fruits)

• All of the above

Soaps and detergents are examples of:

• Acids

• Bases

• Salts

• Indicators

Which of the following is NOT a common indicator used to identify acids and bases?

• Methyl orange

• Phenolphthalein

• Litmus paper

• Universal indicator

When table salt (sodium chloride) dissolves in water, it separates into:

• Elements

• Molecules

• Ions

• Atoms

When a strong acid is dissolved in water, it:

• Completely dissociates into ions.

• Partially dissociates into ions.

• Does not dissociate in water.

• Reacts violently with water.