Water properties

What is cohesion in relation to water?

• Cohesion is the property of water that causes water molecules to stick to each other due to hydrogen bonding, allowing for phenomena like water droplets forming.

• Cohesion refers to the ability of water to dissolve other substances.

• Cohesion is the force that causes water to evaporate quickly.

• Cohesion is the property of water that allows it to conduct electricity.

What is capillary action?

• The ability of water to flow in narrow spaces against gravity, due to the combination of adhesion and cohesion.

• The process by which water evaporates from the surface of leaves.

• The movement of water through soil due to gravity.

• The ability of water to remain still in a container without spilling.

What is adhesion in relation to water?

• Adhesion is the property of water that causes water molecules to stick to other substances, which is important for processes like capillary action.

• Adhesion is the ability of water to resist external forces due to its cohesive properties.

• Adhesion refers to the temperature at which water freezes and its effect on surrounding materials.

• Adhesion is the process by which water evaporates into the atmosphere.

What is the importance of water's polarity?

• It allows water to freeze at higher temperatures.

• It enables water to form hydrogen bonds, which are crucial for its unique properties.

• It makes water a poor solvent for ionic compounds.

• It increases the density of water at higher temperatures.

What does it mean for a substance to be polar?

• A polar substance has a distribution of electrical charge that leads to a positive and negative end, allowing it to dissolve other polar substances like salt.

• A polar substance has no electrical charge and does not interact with other substances.

• A polar substance is always a solid at room temperature and cannot dissolve in water.

• A polar substance has a uniform distribution of electrical charge, making it neutral.

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What is specific heat?

• The amount of heat required to raise the temperature of a substance.

• The total heat energy contained in a substance.

• The heat required to change a substance from solid to liquid.

• The heat required to evaporate a liquid.

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What is surface tension?

• Surface tension is the tightness across the surface of water caused by the cohesive forces between water molecules, allowing objects like paper clips to float.

• Surface tension is the pressure exerted by the weight of water above a given point in a body of water.

• Surface tension is the force that causes water to evaporate quickly in warm conditions.

• Surface tension is the ability of water to dissolve various substances due to its polarity.

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

• It allows water to freeze quickly in cold temperatures.

• It enables water to absorb a lot of heat before it evaporates, regulating temperature in the environment.

• It makes water a poor solvent for many substances.

• It allows water to remain in liquid form at high altitudes.

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Why does oil not dissolve in water?

• Because oil is heavier than water.

• Because oil is non-polar, while water is polar, leading to immiscibility.

• Because oil has a higher boiling point than water.

• Because oil contains more hydrogen than water.

What is the universal solvent?

• Oil

• Ethanol

• Water

• Glycerin