PS Test 9 Practice: Solutions and Acids and bases

Front

What is formed when the negative ions from an acid combine with the positive ions from a base?

Back

Salt

Front

What is the pH of a solution that turns litmus paper blue, phenolphthalein pink, and cabbage juice blue?

Back

10

Front

How does temperature affect the solubility of a solute in a liquid?

Back

The solubility of a solute in a liquid occurs faster if the liquid is heated.

Front

At what temperature do the solubilities of KCl and K2Cr2O7 become the same?

Back

72 degrees Celsius

Front

Which substance is the most soluble at 40 degrees Celsius?

Back

Potassium Chloride

Front

What is an acid?

Back

An acid is a substance that donates protons (H+) in a solution.

Front

What is a base?

Back

A base is a substance that accepts protons (H+) or donates hydroxide ions (OH-) in a solution.

Front

What is the pH scale?

Back

The pH scale measures the acidity or basicity of a solution, ranging from 0 (acidic) to 14 (basic), with 7 being neutral.

Front

What is an indicator in chemistry?

Back

An indicator is a substance that changes color in response to changes in pH.

Front

What is the effect of pressure on the solubility of gases in liquids?

Back

Increasing pressure increases the solubility of gases in liquids.