Properties of Water Review

WATER IS ABLE TO DISSOLVE MANY SUBSTANCES, AND IS COMMONLY KNOWN AS THE -

• Universal Solute

• Universal Compound

• Universal Element

• Universal Solvent

Answer explanation

Water is known as the 'Universal Solvent' because it can dissolve a wide variety of substances, making it essential for many chemical reactions and biological processes.

WATER HAS THE ABILITY TO STICK TO OTHER MOLECULES OF WATER AS WELL AS STICK TO OTHER SUBSTANCES SUCH CAN BE SEEN WHEN WATER MOVES FROM THE ROOTS TO THE LEAVES OF A PLANT. THIS COMBINED FORCE OF ATTRACTION AMONG WATER MOLECULES WITH THE MOLECULES OF SURROUNDING MATERIALS IS CALLED -

• surface tension.

• specific heat.

• capillary action.

• condensation.

Answer explanation

Capillary action is the combined force of attraction between water molecules and surrounding materials, allowing water to move from roots to leaves in plants.

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-4

WHICH OF THESE WILL CAUSE WATER TO CHANGE TO ICE?

• Adding salt to the water.

• Removing heat from the water.

• Stirring the water.

• Putting the water in the sunlight.

Answer explanation

Removing heat from the water lowers its temperature, allowing it to freeze and change into ice. The other options do not facilitate this process.

Tags

NGSS.MS-PS1-4

As liquid water becomes solid ice, ____.

• A) it floats on water

• B) the water molecules become more widely spaced

• C) it becomes less dense

• D) All of the above

Answer explanation

As water freezes into ice, it expands, causing the molecules to space out more, making ice less dense than liquid water. This is why ice floats on water. Therefore, the correct answer is D) All of the above.

Tags

NGSS.MS-PS1-4

Liquid water is more dense than ice because

• A) a chemical changes occurs as ice melts that causes the mass of the water to increase

• B) when ice melts, there is an increase in the amount of molecules

• C) liquid water molecules have more mass than ice molecules

• D) the volume of liquid water increases when it freezes into a solid

Answer explanation

Liquid water is denser than ice because, in ice, water molecules are arranged in a lattice structure that takes up more space. When ice melts, the molecules are closer together, resulting in higher density, not due to mass differences.

Tags

NGSS.MS-PS1-4

Water has many unique chemical properties. Which property of water makes water a good solvent of crystalline salts?

• strong polarity

• weak conductivity

• high viscosity

• low pH

Answer explanation

Water's strong polarity allows it to interact with and surround ions in crystalline salts, effectively dissolving them. This property is crucial for water's role as a universal solvent.

The structure of water allows it to dissolve many minerals. Which of these most accurately represents the structure of water?

• 
• 
• 
• 

Answer explanation

Choice A accurately depicts the water molecule's structure, showing its polar nature with a bent shape. This polarity allows water to effectively dissolve many minerals, making it a universal solvent.

Tags

NGSS.MS-PS1-1

Choose all of the statements that correctly describe properties of water.

• A) Liquid water holds its shape.

• B) Water changes to a gas as it boils.

• C) Ice becomes a liquid when it freezes.

• D) Water changes to a solid when it freezes.

• E) Solid ice changes shape with its container.

Answer explanation

B) is correct as water turns to gas when boiling. C) is incorrect; ice becomes liquid when it melts, not freezes. E) is correct; solid ice does not hold its shape. A) and D) are incorrect as liquid water takes the shape of its container.

Tags

NGSS.MS-PS1-4

The Great Ocean Conveyor Belt shows the flow pattern of deep-sea density currents. Which statement best describes an effect caused by these currents?

• A) They prevent tsunamis from occurring.

• B) They control the occurrence of low and high tides.

• C) They influence climate by distributing energy from the Sun.

• D) They cause hurricanes to move in a counterclockwise direction.

Answer explanation

The Great Ocean Conveyor Belt plays a crucial role in climate regulation by redistributing heat from the equator to the poles, thus influencing global climate patterns. This makes option C the correct choice.

Tags

NGSS.MS-ESS2-6

Which is an example of adhesion in relation to water?

• A) Water droplets forming on a glass surface

• B) Water evaporating from a puddle

• C) Water freezing into ice cubes

• D) Water boiling and turning into steam

Answer explanation

Adhesion refers to the attraction between different substances. Water droplets forming on a glass surface is a clear example of adhesion, as the water molecules are attracted to the glass, causing the droplets to hold their shape.