Water Molecule & Polarity
This type of bond holds the atoms together within a single water molecule.
What is a covalent bond?
This type of bond forms between water molecules due to polarity.
What is a hydrogen bond?
Cohesion is the attraction between particles of this.
What is the same substance?
Water resists temperature change due to this property.
What is high specific heat?
Water is less dense in this phase.
What is solid?
Water is described as this type of molecule because it has partial positive and negative ends.
What is polar?
Hydrogen bonds from between.
The oxygen of one molecule to the hydrogen of another molecule.
Adhesion is the attraction between particles of this.
What is different substances?
Specific heat measures the amount of energy to raise 1g of a substance how much
what is 10C?
Ice forms a crystal-like lattice due to these bonds.
What are hydrogen bonds?
The oxygen atom in water attracts more than its fair share of these.
What are electrons?
Each water molecule can form hydrogen bonds with up to this many neighbors.
What is four?
Cohesion and adhesion helps transport water against gravity in these organisms.
What are plants?
Water’s high specific heat helps stabilize this environment.
What is the marine environment?
Water is most dense at this temperature.
What is 4°C?
This part of the water molecule acts "positively"
What is the Hydrogen atoms?
Hydrogen bonding is responsible for these extraordinary properties of water. (listat least 2)
What are cohesion, adhesion, high specific heat, etc.?
This thin "film" forms on the surface of water due to the strong cohesive force of water
What is surface tension?
Evaporative cooling helps prevent organisms from doing this.
What is overheating?
Ice forms on the surface first and releases this to the water below.
What is heat?
Why is water considered a versatile solvent, and how does this property support life?
Because water’s polarity allows it to dissolve many ionic and polar substances, enabling essential biological processes like nutrient transport, chemical reactions, and waste removal in living organisms.
Why does sweating cool the body? Explain in terms of hydrogen bonding.
Breaking hydrogen bonds during evaporation absorbs heat energy from the skin, cooling the body.
How do cohesion and adhesion work together to move water from roots to leaves in tall trees?
Cohesion holds water molecules together in a column, while adhesion helps water stick to plant walls, enabling capillary action
Why do coastal areas have milder climates compared to inland areas?
Water absorbs and releases heat slowly, moderating temperature fluctuations near coasts.
Why is it important for aquatic life that ice floats on water?
Floating ice insulates the water below, preventing entire bodies of water from freezing and allowing life to survive in winter.