Lipid
Substances with nonpolar molecules are not dissolved in water.
Typically nonpolar substances are soluble in other nonpolar substances. Like disolves like...
Oil and water will not mix as water is a polar substance and oil is nonpolar. Polar substances will only dissolve other polar substances or ionic substances, but not nonpolar substances. Thus, they stay separate, and water is more dense then oil, which is why the oil floats (same principals as to why anything floats)
Oil and water do not mix because the triglyceride bonds have a hydrophobic (meaning does not like water) ends and therefore it will not react (or mix) with water. Water and oil don't mix because water is a polar substance and oil is nonpolar. Polar substances will only dissolve other polar substances or ionic substances, but will not dissolve nonpolar substances. Remember "Like dissolves like."
Iodine is not soluble in water because iodine is nonpolar and water is polar. According to the "Like dissolve like" expression, nonpolar substances are soluble with nonpolar substances and polar substances are soluble with polar substances, but nonpolar substances are not soluble with polar substances.
Lipid
Substances with nonpolar molecules are not dissolved in water.
Fats, as well as organic compounds, are nonpolar substances. Water, however, is a polar substance. Nonpolar substances dissolve nonpolar substances and polar substances dissolve polar substances (like dissolves like) because each are more attracted to molecules of similar structure than of different structure.
Actually, water, by hydrogen bonding with itself and not the nonpolar substances excludes the nonpolar substances from hydrogen bonding and turns them into associations with each other. Natural water can hydrogen bond with many polar and charged substances.
Typically nonpolar substances are soluble in other nonpolar substances. Like disolves like...
Oil and water will not mix as water is a polar substance and oil is nonpolar. Polar substances will only dissolve other polar substances or ionic substances, but not nonpolar substances. Thus, they stay separate, and water is more dense then oil, which is why the oil floats (same principals as to why anything floats)
No, because water is polar and CH20 is nonpolar. Polar and nonpolar substances don't mix.
the rule of thumb is "Like dissolves like". What this means is that polar substances dissolve polar substances, and nonpolar substances dissolve nonpolar substances. For instance, common tablesalt (NaCl) has an ionic bond that will dissociate in polar liquid like water (H2O), but not in a nonpolar liquid like oil.
Oil and water do not mix because the triglyceride bonds have a hydrophobic (meaning does not like water) ends and therefore it will not react (or mix) with water. Water and oil don't mix because water is a polar substance and oil is nonpolar. Polar substances will only dissolve other polar substances or ionic substances, but will not dissolve nonpolar substances. Remember "Like dissolves like."
Polar substances dissolve other polar substances, and nonpolar substances dissolve other nonpolar substances. A polar substance cannot dissolve a polar substance and a nonpolar substance cannot dissolve a polar substance.
No, "like dissolves like" rule applies to polar substances dissolving in polar solvents, and nonpolar substances dissolving in nonpolar solvents. Alkenes are nonpolar because they only contain C=C, C-C, and C-H bonds, and water is highly polar. Alkenes are not soluble in water.