Exploring Acids, Bases, and Salts

What are the common properties of acids?

• Bitter taste

• Turning red litmus paper blue

• Common properties of acids include sour taste, ability to conduct electricity, reaction with bases, and turning blue litmus paper red.

• Ability to absorb heat

How do bases typically feel to the touch?

• slippery or smooth

• rough or coarse

• sticky or tacky

• hard or rigid

What is the result of a neutralization reaction?

• Water and salt

• Hydrogen gas and oxygen

• Acid and base

• Carbon dioxide and water

What does the pH scale measure?

• The color of a solution.

• The temperature of a solution.

• The acidity or alkalinity of a solution.

• The concentration of solutes in a solution.

Which indicator turns red in acidic solutions?

• Bromothymol blue

• Phenolphthalein

• Litmus indicator

• Methyl orange

Explain the Arrhenius theory of acids and bases.

• Acids produce OH- ions in water; bases produce H+ ions in water.

• Acids produce H+ ions in water; bases produce OH- ions in water.

• Acids produce H2O; bases produce CO2.

• Acids and bases do not dissociate in water.

What is a salt, and how is it formed?

• A salt is formed by mixing two liquids together.

• A salt is a type of metal used in cooking.

• A salt is a gas that is produced during combustion.

• A salt is an ionic compound formed from the neutralization reaction between an acid and a base.

What happens to the pH of a solution when an acid is added?

• The pH of the solution increases.

• The pH of the solution decreases.

• The pH of the solution remains the same.

• The pH of the solution fluctuates randomly.

Describe the Bronsted-Lowry theory of acids and bases.

• Acids are substances that accept electrons, while bases donate electrons.

• Acids are defined as substances that increase the concentration of hydroxide ions in solution.

• Bases are substances that donate protons, while acids accept protons.

• In the Bronsted-Lowry theory, acids are substances that donate protons (H+), while bases are substances that accept protons.

What is the role of water in the formation of salts?

• Water acts as a catalyst in salt formation.

• Water prevents the formation of salts entirely.

• Water is a byproduct of salt formation.

• Water facilitates the dissociation and recombination of ions to form salts.