Water Properties

What is cohesion in water?

• A property that allows water to freeze at higher temperatures.

• The ability of water to dissolve many substances.

• The property of water that allows water molecules to stick together, which is responsible for surface tension.

• A measure of how much water can absorb heat without changing temperature.

What are the properties of water that make it unique?

• High heat capacity, cohesion, adhesion, and the ability to freeze at 0°C

• High heat capacity, cohesion, adhesion, polarity, and the ability to dissolve many substances

• High density, low viscosity, and the ability to evaporate quickly

• High boiling point, low surface tension, and the ability to conduct electricity

What is adhesion in water?

• The property of water that allows it to stick to other substances.

• The ability of water to evaporate quickly.

• The tendency of water to freeze at low temperatures.

• The process of water being absorbed by soil.

What is water's high heat capacity?

• It allows water to freeze quickly.

• It means water can absorb a lot of heat before its temperature rises significantly.

• It makes water boil at a lower temperature than other liquids.

• It prevents water from evaporating easily.

What is the difference between covalent bonds and hydrogen bonds in water?

• Covalent bonds are weak attractions between water molecules, while hydrogen bonds are strong bonds that hold the hydrogen and oxygen atoms together within a water molecule.

• Covalent bonds hold the hydrogen and oxygen atoms together within a water molecule, while hydrogen bonds are weaker attractions between water molecules.

• Covalent bonds are formed between water molecules, while hydrogen bonds are formed within a single water molecule.

• Covalent bonds are temporary connections, while hydrogen bonds are permanent connections.

What are hydrogen bonds?

• Strong attractions between water molecules

• Weak attractions between the negative oxygen atom of one water molecule and the positive hydrogen atom of another water molecule

• Covalent bonds between hydrogen and oxygen atoms

• Ionic bonds formed between water molecules

What is the significance of water's polarity?

• It allows water to freeze at higher temperatures.

• It enables water to dissolve many substances, making it an excellent solvent for chemical reactions in biological systems.

• It makes water less dense than ice.

• It prevents water from forming hydrogen bonds.

What is the role of water in biological systems?

• Water is a source of energy for cellular processes.

• Water helps in the formation of cell membranes.

• Water is crucial for life as it participates in chemical reactions, helps transport nutrients, and regulates temperature.

• Water acts as a waste product in metabolic reactions.

What is the significance of water's specific heat?

• It allows water to freeze quickly in cold temperatures.

• It enables water to absorb and store large amounts of heat energy, stabilizing temperatures in ecosystems.

• It makes water a poor solvent for many substances.

• It causes water to evaporate at lower temperatures.

What is the effect of temperature on water's density?

• As water is heated, it becomes denser; conversely, as it cools, it becomes less dense.

• As water is heated, it becomes less dense; conversely, as it cools, it becomes denser until it reaches 4°C, after which it expands upon freezing.

• Temperature has no effect on water's density.

• Water's density increases continuously with temperature.