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What form are molecules in water vapor?
Their form remains the same - water is water. However, the molecules are in a gaseous state/phase (rather than liquid or solid state/phase).
Why is the formation of dew a physical change?
The formation of dew is a physical change because it involves a phase transition from water vapor (gas) to liquid water (liquid) due to the cooling of air at night. No new substances are formed during this process, and the water molecules remain the same chemically before and after the dew forms.
What is the difference between the water from melted ice and the ice itself?
The water from melted ice is in liquid form, while ice itself is in solid form. The water molecules in liquid water have more energy and are able to move more freely compared to the tightly packed ice molecules.
Are molecules further apart in ice than in water?
Yes, in ice, water molecules are in a more organized structure compared to when they are in liquid form. This results in a hexagonal lattice arrangement in ice, causing the molecules to be more spread out and creating a lower density compared to liquid water.
How is liquid water different from solid ice?
It is different because, liquid water can (and will) take the form of the container it is in. We can also change the form of liquid water, unlike solid ice. Solid Ice wont take the form of the container it is in and we cant change its form without breaking it.
Can water adhere and cohere?
When two things that are alike stick together, they cohere. Water molecules in a cloud cohere to each other forming a droplet of water. More of these droplets cohere to each other forming larger droplets. When the cloud becomes saturated with water droplets it rains. When two (or more) different things stick together, they adhere. When you get caught in a downpour and your clothes gets really wet, the water makes your clothes adhere (stick) to your skin.
What happens to the speed of molecules in water vapor when it condenses to form a liquid?
When water vapor condenses to form a liquid, the average speed of the water molecules decreases. This is because the molecules are moving closer together and are held more tightly by intermolecular forces in the liquid state.
What is the different between ice and water?
Ice is the solid form of water, while water is the liquid form. Ice has a crystalline structure with molecules that are more tightly packed, whereas water molecules in liquid form are more loosely packed and free to move around.
It takes water molecules to fill up the same space if the molecules are in the form of ice as compared to liquid water?
No, it takes the same number of water molecules to fill up a certain space whether they are in the form of ice or liquid water. In ice, the water molecules are just held in a more structured arrangement compared to the more freely moving molecules in liquid water.
What happens to the speed of molecules in water vapor when it condenses to form of a liquid?
The molecules slow down.
What form are molecules in water vapor?
Their form remains the same - water is water. However, the molecules are in a gaseous state/phase (rather than liquid or solid state/phase).
Why is the formation of dew a physical change?
The formation of dew is a physical change because it involves a phase transition from water vapor (gas) to liquid water (liquid) due to the cooling of air at night. No new substances are formed during this process, and the water molecules remain the same chemically before and after the dew forms.
Match the description to the form of water that is described?
Water vapor is the least dense form of water, and the molecules are farthest apart from each other. Liquid water is the densest form of water. In ice, molecules form a crystal lattice.
Do the fastest or slowest moving molecules break away from the surface of liquid water to form water vapor?
The fastest moving molecules are more likely to break away from the surface of liquid water to form water vapor. This process is called evaporation, and it occurs when molecules with higher kinetic energy overcome the intermolecular forces holding them in the liquid phase.
When water vapors form liquid water droplets in a window in the early morning this is an example of?
Condensation. This is gas molecules forming in their liquid state.
When water vapor form liquid water droplet on window in the early morning this is an example of?
Condensation. This is gas molecules forming in their liquid state.
What is the most dense form of water?
Ice is the most dense form of water. When water freezes into ice, its molecules arrange in a way that makes ice denser than liquid water, which is why ice floats on water.
