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Water dissolves substances because it's hydrogen bonds make it a polar molecule. Thus, the positive and negative ends of the water molecules attract the negative and positive ends (respectively) of substances, thus pulling them apart and dissolving the substance.
Oil, however, is a nonpolar substance, so it is not attracted to the polarity of water.
Oil doesn't dissolve in water for a couple of reasons. First, water is polar, meaning that it has a partial positive charge on one side and a partial negative charge on the other side. Because of this, it dissolves substances that are charged or polar themselves, since the positive charges of the substance would be drawn to the negative oxygen and the negative charges would be drawn to the positive hydrogen. The water molecules would pull them apart and/or surround them in a way that separates them. Oil isn't charged like that, since hydrocarbons aren't polar. (Maybe the ends of the oil molecules might have that, but the hydrocarbon parts of the molecules are so long that the percentage of the molecule that would have a polar part is negligible). Hydrocarbons tend to huddle together and are called hydophobic (avoid water). The lack of polarity/charge prevents water from pulling them apart. A second reason is that oil is less dense than water, so it will float on top of water, rather than mix at the same level.
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Does oil dissolve?
Good question... With the information in my science classes, OIL does not dissolve in anything. But in my opinion I believe it is possible for oil to dissolve. I think oil may dissolve in acids, or any type of chemical. Oil can also dissolve when placed in boiling water for a period of time. Hope this helps! Good luck
What can't dissolve in water?
what does not turn dissolve in water is you! our bodies cannot melt in water
What types of substances would be least likely to dissolve in water?
Giant covalent substances like diamond tend not to dissolve in anything. Non polar molecular substances such as hydrocarbons are not attracted to water.
Why mineral oil dissolve in hexane and not in water?
Polar substances are miscible (will dissolve) in each other and non-polar substances will dissolve in each other. "Like dissolves like!" Mineral oil is non-polar. Hexane is a six carbon chain and is also non-polar. Water on the other hand is polar because it contains an electronegative oxygen.
What word in science to mean something that does dissolve?
The word "soluble" (in science) refers to something that can dissolve in something else, like salt in water. The word "insoluble" refers to something that does not dissolve in something else, like oil in water.
Does kerosene oil dissolve in water?
No, kerosene oil does not dissolve in water because it is a nonpolar substance. Water is a polar solvent and cannot easily mix or dissolve nonpolar substances like kerosene oil.
Name a molecule that does not dissolve well in water?
oil does not dissolve at all in water.
Why oil and water dissolve?
the density of oil is more than the water.so,they will never dissolve with each other, rather the oil will float over the water.
Which liquid does not dissolve in water?
Oil
Do not dissolve in water?
oil... xpp
What liquids can not dissolve in water?
oil
Will not dissolve in oil and water?
insoluble.
Does salad oil dissolve in water?
No, salad oil is not soluble in water. Salad oil is a nonpolar substance, while water is polar. Since like dissolves like, nonpolar substances like oil do not mix well with polar substances like water.
Does lubricating oil and water dissolve together?
No, lubricating oil and water do not dissolve together because oil is hydrophobic, meaning it does not mix with water due to differences in polarity. It forms separate layers when combined, with oil floating on top of the water.
Why cooking oil do not dissolve in water?
Cooking oil is nonpolar, while water is polar. Like dissolves like, meaning substances with similar polarity tend to dissolve in each other. Since oil is nonpolar and water is polar, they do not interact on a molecular level, causing oil to not dissolve in water.
Why do samples dissolve in mineral oil but not water?
I don't know what these samples are of, but somethings just dissolve in oil but not in water. That's one of the properties they have.
What will dissolve in distilled water?
Substances that are polar or ionic, such as salt, sugar, and acids, will dissolve in distilled water. Nonpolar substances, such as oil, will not dissolve in water.
