Answer the following question given this paragraph: Ester molecules are polar but have no hydrogen atom attached directly to an oxygen atom. They are therefore incapable of engaging in intermolecular hydrogen bonding with one another and thus have considerably lower boiling points than their isomeric carboxylic acids counterparts. Because ester molecules can engage in hydrogen bonding with water molecules, however, esters of low molar mass are somewhat soluble in water. Borderline solubility occurs in those molecules that have three to five carbon atoms. http://catalog. flatworldknowledge. com/bookhub/reader/2547 - gob-ch15_s07_t01lists the physical properties of some common esters. Q: Lack of which attachment makes ester molecules incapable of intermolecular hydrogen bonding? Choices: - carbon fluorine atom - carbon sulfur atom - carbon oxygen atom - hydrogen-oxygen atom A:
hydrogen-oxygen atom
Answer the following question given this paragraph: Farther inland, the climate is influenced by cold or hot air from the land. This air may be dry, because it comes from over land. An inland climate is usually more extreme. Winters may be very cold, and summers may be very hot. Precipitation can be low. This is a continental climate . Q: Continental climates are generally found in what areas of landmasses? Choices: - northerly - buttes - wetlands - inland A:
inland
Q: Answer the following question given this paragraph: Integral proteins span the lipid bilayer, while peripheral proteins associate with the surfaces of the lipid bilayer. aid in the movement of charged and polar species across the membrane. Q: Integral and peripheral proteins are associated with what fatty bilayer? Choices: - protein - cartilage - carbohydrate - lipid A:
A: lipid
Question: Answer the following question given this paragraph: Q: Animals require air, water, and what in order to live and survive? Choices: - time - mates - shade - food? A:
Answer: food?
*Question*
Answer the following question given this paragraph: Food and Drink App: Vitamins and Minerals Vitamins are nutrients that our bodies need in small amounts but cannot synthesize; therefore, they must be obtained from the diet. The word vitamin comes from "vital amine" because it was once thought that all these compounds had an amine group (NH2) in it. This is not actually true, but the name stuck anyway. All vitamins are covalently bonded molecules. Most of them are commonly named with a letter, although all of them also have formal chemical names. Thus vitamin A is also called retinol, vitamin C is called ascorbic acid, and vitamin E is called tocopherol. There is no single vitamin B; there is a group of substances called the B complex vitamins that are all water soluble and participate in cell metabolism. If a diet is lacking in a vitamin, diseases such as scurvy or rickets develop. Luckily, all vitamins are available as supplements, so any dietary deficiency in a vitamin can be easily corrected. A mineral is any chemical element other than carbon, hydrogen, oxygen, or nitrogen that is needed by the body. Minerals that the body needs in quantity include sodium, potassium, magnesium, calcium, phosphorus, sulfur, and chlorine. Essential minerals that the body needs in tiny quantities (so-called trace elements) include manganese, iron, cobalt, nickel, copper, zinc, molybdenum, selenium, and iodine. Minerals are also obtained from the diet. Interestingly,. Q: Essential minerals that the body needs in tiny quantities are called what? Choices: - flux minerals - draw minerals - byproduct minerals - trace minerals A:
**Answer**
trace minerals
*Question*
Answer the following question given this paragraph: Q: What do electrons lose during their transfer from organic compounds to oxygen? Choices: - mechanical energy - thermal energy - actual energy - potential energy A:
**Answer**
potential energy