Unit 1A Chemistry Review

Front

What is cohesion in water?

Back

Cohesion is the property of water that allows water molecules to stick to each other, leading to phenomena like water beading on surfaces.

Front

What is adhesion in water?

Back

Adhesion is the property of water that allows it to stick to other substances, which is important for processes like water climbing up plant stems.

Front

What is surface tension?

Back

Surface tension is the cohesive force at the surface of a liquid that makes it behave like a stretched elastic membrane, allowing small objects to float.

Front

What is capillary action?

Back

Capillary action is the ability of water to flow in narrow spaces against gravity, due to the combination of cohesion and adhesion.

Front

What is an acid?

Back

An acid is a substance that has a pH below 7, which can donate protons (H+) in a solution.

Front

What is a base?

Back

A base is a substance that has a pH above 7, which can accept protons (H+) or donate hydroxide ions (OH-) in a solution.

Front

What is a neutral substance?

Back

A neutral substance has a pH of 7, indicating a balance between acids and bases.

Front

How can you decrease the pH of a solution?

Back

To decrease the pH of a solution, you can add a strong acid, which increases the concentration of H+ ions.

Front

What happens when you add water to a solution with a high pH?

Back

Adding water dilutes the solution, which may lower the pH but not necessarily below 7 unless an acid is added.

Front

What is the pH scale?

Back

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