What is hydrophilic polar head?

What is hydrophilic polar head? Both stearic acid (a fatty acid) and phosphatidylcholine (a phospholipid) are composed of chemical groups that form polar “heads” and nonpolar “tails.” The polar heads are hydrophilic, or soluble in water, whereas the nonpolar tails are hydrophobic, or insoluble in water. What is the function of hydrophilic polar head? The […]

How does fruit cake last so long?

How does fruit cake last so long? Most fruitcake recipes include dried nuts, dried fruit, and “candied” fruit or peel (meaning the fruit has been both dried and preserved in sugar). “In practical terms, this makes most fruitcakes extremely shelf stable, so they would be safe to eat for a long time – a really […]

What size discus do high schoolers use?

What size discus do high schoolers use? 1.6 kg What is the high school discus weight? How big is a discus? The modern discus used in men’s competition is circular, about 219 mm (8.6 inches) in diameter and 44 mm (1.75 inches) thick at its centre. It is made of wood or similar material, with […]

What intermolecular force does NH3 have?

What intermolecular force does NH3 have? 2001 D Answer: (a) NH3 exhibits hydrogen bonding (H attached to nitrogen, attracted to N in adjacent molecule) between molecules which creates a larger IMF than CH4 which doesn’t exhibit H-bonding, only weak London dispersion forces). Why does hydrogen bonding occur? Why Hydrogen Bonds Form The reason hydrogen bonding […]

Can a dragon swim?

Can a dragon swim? While they are not known for swimming or usually encounter large bodies of water in their natural habitat, they are known to be surprisingly good at it! They are able to inhale air and float on water along with being able to hold their breathe for a couple of minutes and […]

Is there a sleeper train from Plymouth to Edinburgh?

Is there a sleeper train from Plymouth to Edinburgh? What time does the last train from Plymouth to Edinburgh (Waverley) leave? Trains that depart in the early morning hours or very late evening may be sleeper services, time and services may also vary during weekends and holidays. How far is Plymouth from Scotland? 446 miles […]

What would happen if I swallowed a whole egg?

What would happen if I swallowed a whole egg? Originally Answered: What would happen if you swallowed an egg whole, shell and all? It would break in your mouth or throat and it would ooze. It would go down into your gastrointestinal tract and you’d digest it. Why do I choke on hard-boiled eggs? Why […]

Are Harley Davidsons hard to ride?

Are Harley Davidsons hard to ride? The Low Rider S ended up being a great introduction to the legendary brand. While it doesn’t qualify as a lightweight, the bike was easy to manage—easier than I anticipated. The same can be said of the handling. Harleys are far more flexible and easy to rock in the […]

Is the Franklin Mint legit?

Is the Franklin Mint legit? As with all of the modern companies which style themselves “mints”, the Franklin Mint is not actually an official mint of any kind. It is a private company currently owned by two Long Island businessmen which manufactures and sells a wide range of collectibles, such as plates, dolls, die cast […]

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