Properties of Water and pH Scale Review

Front

What is the pH scale?

Back

The pH scale measures how acidic or basic a substance is, ranging from 0 (very acidic) to 14 (very basic), with 7 being neutral.

Front

What is a base?

Back

A base is a substance that has a pH greater than 7 and can accept protons or donate electron pairs.

Front

What is an acid?

Back

An acid is a substance that has a pH less than 7 and can donate protons or accept electron pairs.

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 objects to float.

Front

What causes water's high surface tension?

Back

Water's high surface tension is caused by hydrogen bonds between water molecules.

Front

What are hydrogen bonds?

Back

Hydrogen bonds are weak attractions between a hydrogen atom covalently bonded to an electronegative atom and another electronegative atom.

Front

What is the molecular formula of water?

Back

The molecular formula of water is H2O, consisting of two hydrogen atoms and one oxygen atom.

Front

What is a solvent?

Back

A solvent is a substance that dissolves a solute, resulting in a solution; water is known as the universal solvent.

Front

What is adhesion?

Back

Adhesion is the attraction between different substances, such as water molecules and other materials.

Front

What is cohesion?

Back

Cohesion is the attraction between molecules of the same substance, such as water molecules attracting each other.