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Cause of Water Molecules Expanding Upon Freezing: Water molecules expand upon freezing due to the hydrogen bonding between the molecules. As water cools and approaches its freezing point, the molecules slow down and form a crystalline structure that is maintained by hydrogen bonds. This structure is more open and hexagonal compared to the liquid state, leading to an increase in volume and a decrease in density. As a result, ice is less dense than liquid water, which is why ice floats.
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Effect of Water Dissolving Many Substances: Water is often referred to as the "universal solvent" because it can dissolve a wide variety of substances, including salts, sugars, acids, and gases. This property is primarily due to its polarity; water molecules have a partial positive charge on the hydrogen atoms and a partial negative charge on the oxygen atom. This allows water to effectively surround and separate solute molecules, breaking ionic and hydrogen bonds and facilitating the formation of solutions. The ability of water to dissolve many substances is crucial for biological processes, as it allows for the transport of nutrients and waste in living organisms.
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Effect of Adhesion: Adhesion is the tendency of water molecules to stick to other surfaces. This property results from the polar nature of water, which allows it to form hydrogen bonds with other molecules. The effect of adhesion can be seen in phenomena such as capillary action, where water rises in narrow tubes against the force of gravity due to its attraction to the walls of the tube. Adhesion also plays a significant role in processes like wetting, where water spreads on surfaces, and in the movement of water in plants, allowing water to travel from roots to leaves.
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Type of Molecules That Will Create a Solution When Mixed with Water: Molecules that are polar or ionic will create a solution when mixed with water. Polar molecules, such as sugars and alcohols, can interact with water through hydrogen bonding, allowing them to dissolve. Ionic compounds, such as salts, dissociate into their constituent ions when they come into contact with water, allowing for the formation of an electrolyte solution. Nonpolar molecules, on the other hand, generally do not dissolve well in water because they cannot form significant interactions with polar water molecules.
1) cause of water molecules expanding upon freezing
2) effect of water dissolves many substances
3) effect of adhesion
4) what type of molecules will create a solution when mixed with water
7 answers
Sure! Here are concise one-sentence answers for each point:
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Water molecules expand upon freezing due to the formation of a stable hydrogen-bonded crystalline structure that is less dense than liquid water.
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Water's polarity allows it to dissolve many substances by surrounding and separating solute molecules, effectively breaking ionic and hydrogen bonds.
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Adhesion causes water molecules to stick to other surfaces, leading to phenomena like capillary action and wetting.
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Polar or ionic molecules will create a solution when mixed with water due to their ability to interact favorably with water's polarity.
Sure! Here's a simpler version of the first point:
- Water molecules expand when they freeze because they form a special structure with hydrogen bonds that takes up more space.
Of course! Here are simpler versions of points 2 and 3:
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Water can dissolve many substances because its molecules can surround and break apart other molecules.
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Adhesion is when water sticks to other things, allowing it to move up tiny tubes or spread out on surfaces.