Water Molecule Polarity Flashcard

Front

What is the role of water in maintaining homeostatic body conditions in living organisms?

Back

Water helps resist temperature changes, contributing to homeostasis.

Front

What are substances called that have an affinity for water?

Back

Hydrophilic substances are those that have an affinity for water.

Front

How is a hydronium ion (H3O+) often represented in chemical equations?

Back

A hydronium ion is often represented as H+ in chemical equations.

Front

How many hydrogen bonds can a single water molecule form with other water molecules?

Back

A single water molecule can form four hydrogen bonds with other water molecules.

Front

What process do plants use to raise water from their roots?

Back

Plants use transpiration to raise water from their roots.

Front

Define polarity in the context of water molecules.

Back

Polarity refers to the distribution of electrical charge over the atoms joined by the bond, resulting in a molecule with a positive and a negative end.

Front

What is the significance of water's high specific heat?

Back

Water's high specific heat allows it to absorb and release large amounts of heat without significant temperature changes, stabilizing climates and organisms.

Front

Explain the term 'hydrophobic'.

Back

Hydrophobic refers to substances that do not have an affinity for water and tend to repel it.

Front

What is the importance of hydrogen bonding in water?

Back

Hydrogen bonding in water contributes to its unique properties, such as high surface tension, cohesion, and adhesion.

Front

How does water's density change when it freezes?

Back

Water expands and becomes less dense when it freezes, allowing ice to float on liquid water.