Chapter 1, Problem 1.124E

Animal fats and vegetable oils become rancid when exposed to air because a. they are hydrogenated to form saturated fatty acids. b. they form amino acids in air. c. they are partially hydrogenated. d. carbon-carbon double bonds are oxidized in air, producing small organic molecules.

Determine whether the statements are true or false and could you please leave a short explanation in order for me to understand? Thank you so much! 1. Vitamins are useful in the body in great amounts.2. Vitamins don't have a common sturcture3. There is one type of vitamin B.4. Vitamin D is usually found in citrus fruits.5. There are vitamins that can be produced by the skin with the aid of sunlight.6. Vitamin K can solve fertility problems.7. Some vitamins can be synthesized by the human body.8. Before taking multivitamins, consultation with a doctor is important.9. All vitamins are water-soluble.10. Too much vitamins may be toxic to the body.

8. How many moles of CO2 will be produced from the complete combustion of 1.25 moles of heptane (C7H16)? C7H16 + 110₂ T 7CO2 + 8H₂0 a. 28.75 moles b. 23 moles c. 35 moles d. 42.15 x 1024 moles

Upon ingestion, grain alcohol,C2H6O, is metabolized into acetaldehyde, C2H4O, which is a toxic substance causing headaches as well as joint pains typical of a "hangover." Is the grain alcohol oxidized or reduced as it transforms into acetaldehyde? a. Some of the grain alcohol is oxidized and some is reduced to other products. b. The grain alcohol is oxidized c. The grain alcohol is neither oxidized nor reduced. d. The grain alcohol is reduced

One mole of ethanol (C 2H 6O) releases 327 kcal when burned, whereas one mole of hydrogen (H 2) releases only 68.4 kcal/mol. How many kcal/g are released when each of these fuels is burned? On a per gram basis, which substance would be a better source of energy?

Consider the reaction in producing wine: C6H12O6(aq)——-> 2CO2(aq). When zymase is added to glucose, the production of ethanol and carbon dioxide increases in a shorter period of time. What is the role of zymase in this reaction? a. Reactant b. Enthalpy c. Catalyst d. Product Please show your solution.

Answer all the question. Just choose the letters.

The primary use of ingested proteins in the body is to _____.     be broken down into amino acids that are used to build proteins and nucleic acids within the body be broken down to release energy and the unused components are recycled to build new proteins within the body interact with signaling molecules to trigger the building of muscle fibers be converted to starches or sugars, which are more readily accessible forms of energy

3. A typical diet in the United States provides 15% of the calories from protein, 45% from carbohydrates, and the remainder from fats. Calculate the grams of protein, carbohydrate, and fat to be included each day in diets having the following caloric requirements. a. 1200 kcal b. 1900 kcal c. 2600 kcal