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Water does not particularly want to form a dome, or it would be better to say, form a droplet, on a dirty surface.

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Water forms droplets when the cohesion of water with itself is larger than the adhesion of water to the surface.

A dirt surface cold be anything; hydrophobic or hydrophilic, soluble or insoluble, rough or smooth, hot or cold.

All these things matter.

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10y ago
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14y ago

This is because of the surface tension of the water.

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9y ago

Some materials are hydrophilic, which means they tend to attract water, and some materials, like your counter top, are hydrophobic, which means they tend to repel water.

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Q: Why will water form droplets on a smooth surface such as a counter top?
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Why does water droplets form on smooth surface?

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Why do water droplets always form one huge drop on a penny?

Surface tension of water draws it into a larger drop. It will do that on any nonporous surface- metal, glass, smooth plastic, etc.


How is water droplets formed in the inner most surface of the beaker?

when the hot water in the beaker touches the cool surface of the beaker,the water condenses into water droplets.


Why water droplets can be found outer surface of cup?

Your question is imprecise - we do not get the point of what you are asking. Water droplets can be found on the outer surface of a cup if it has just been washed!


Visible masses if tiny water droplets above Earth's surface?

The tiny water droplets in the sky form clouds.


Why can you observe water droplets on the surface of a chilled bottle?

You can observe water droplets on the surface of a chilled bottle because the temperature of the atmosphere is a different temperature to that of the temperature in the chilled bottle.


Why is water reflective?

The surface tension of the water creates a smooth surface. Light, as well as images captured by the eyes, are reflected on that smooth surface.


Condesation on windows?

Condensation is water droplets appearing on a surface.


How do water droplets falling out of a thundercloud get bigger as they fall towards the earth's surface?

they get bigger because the water droplets are cold and there is also water vapour in the air which is hotand when they meet the water vapour changes back to water droplets which then combine with the water droplets falling from the thunder cloud!!


Where did the droplets of water come from?

Droplets of water will condense on a surface when the surface drops below the Dew Point temperature at that relative humidity.That is, the vapour condenses into a liquid phase. The droplet shape is caused by surface tension of the liquid.


How Do Water Droplets Form?

water droplets form when a cold surface touches a hotter surrounding air and condenses to form water droplets


Why water droplets could not form on the outer surface of the bottle?

The water is too hot