.... to tap the energy of light elements, such as hydrogen. In these bombs the source of energy is the fusion process, in which nuclei of the isotopes of hydrogen combine to form a heavier helium nucleus. This weapons research has resulted in the production of bombs that range in power from a fraction of a kiloton to many megatons. The size of the bomb has been made smaller helping the development of nuclear artillery shells and small missiles that can be fired from portable launchers in the field. Nuclear bombs were originally developed as strategic weapons to be carried by large bombers; nuclear weapons are now available for a variet .....

.... of the snowball theory rest on various data. For one, of the observed gases and meteoric particles that are ejected to provide the coma and tails of comets, most of the gases are fragmentary molecules, or radicals, of the most common elements in space: hydrogen, carbon, nitrogen, and oxygen. The radicals, for example, of CH, NH, and OH may be broken away from the stable molecules CH4 (methane), NH3 (ammonia), and H2O (water), which may exist as ices or more complex, very cold compounds in the nucleus. Another fact in support of the snowball theory is that the best-observed comets move in orbits that deviate significantly from .....

.... in the past 30 years (Salmans 40). Suicide is the 2nd leading cause of death among older teens (Stewart 9). Depression isn’t the only reason for suicide though. Depression has many effects on a person, both physically and mentally. Restlessness, irritability, frequent crying, and change in behavior are all common signs (Kist 26). Chronic aches and pains, such as headaches or stomachaches and other digestive problems that don’t get better with treatment are symptoms too. Ones sleeping may be altered. A person could have difficulty falling asleep, or getting up too early in the morning, or oversleeping (Kist 26). A big .....

.... information to do so. These biochemical pathways, with their myriad reactions catalyzed by reaction-specific enzymes all under genetic control, are extremely complex. We will only skim the surface at this time and in this course. Alcohol fermentation is the formation of alcohol from sugar. Yeast, when under anaerobic conditions, convert glucose to pyruvic acid via the glycolysis pathways, then go one step farther, converting pyruvic acid into ethanol, a C-2 compound. Fermentation of ethanol. Image from W.H. Freeman and Sinauer Associates, used by permission. Many organisms will also ferment pyruvic acid into, other chemic .....

.... also a very good conductor of electricity. As you can see, gold is an element that is not only a great gift for someone, but is very usefull if actually put to use. The main drawback to gold is that it is a very precious metal. We dont have an unlimited supply of it. This is why gold today is priced so high and really doesn't drop that much over time. .....

....  Anorexia is a big issue in society today. Girls and boys are developing anorexic symptoms as young as age five. While anorexia can be detected in boys, girls, men, and/or women of all ages, “the most common ages of onset [remains] between thirteen and twenty-two.”(Levenkron,1) Anorexia nervosa is an eating disorder. People who develop anorexia are usually “afraid of becoming obese and [have] such a distorted image of [their] body, that [they] steadfastly [refuse] to eat even when...hungry.”(Mathews, 29) The “[eating] disorder [becomes] a disease...when problems of the mind .....

.... these cases, surgery alone is basically useless. Radiation therapy is another option, and many doctors prefer this in many cases. When a patient receives radiation therapy, gamma rays are sent in to treat the region that the tumor is in. Patients usually receive five to eight weeks of treatments every day, but they don't have to stay in the hospital. Radiation works because when the high amount of rays treat the tumor, it will cause enough damage to the cells to kill them. Radiation does damage the healthy tissue, but they can recover easily. So, radiation therapy can kill the cancerous tissue, while the healthy tissue can still f .....

.... in a laboratory. Discovery of the element was first claimed in 1957 by scientific groups in the United States, Great Britain, and Sweden, but the first confirmed discovery of a nobelium isotope was by a team of scientists at the Lawrence Radiation Laboratory in Berkeley, California and that took place in 1958. The isotope was created by bombarding curium isotopes with carbon ions. Chemically, the properties of nobelium are unknown, but because it is an actinide, its properties should resemble those of the rare earth elements. Isotopes with mass numbers from 250 to 259 and 262 are known. The most stable isotope, nobelium-25 .....

.... If the atoms are linked in rings, the compounds are called cyclic compounds. (pg.581, ...ibid...) (Biology Pamphlet) In terms of naming organic compounds the number of carbon-carbon chains are named using the prefixes below: meth- 1 carbon eth- 2 prop- 3 but- 4 pent- 5 hex- 6 hept- 7 oct- 8 non- 9 dec- 10 The simplest group of hydrocarbons is the alkanes. The carbon atom in these hydrocarbons is always saturated with hydrogen atoms. The first three members of the alkane family are methane - CH , ethane C H , and pr .....

.... have to have the activation energy are those particles which are moving, in the case of magnesium and hydrochloric acid, it is the hydrochloric acid particles which have to have the activation energy because they are the ones that are moving and bombarding the magnesium particles to produce magnesium chloride. The rate at which all reactions happen are different. An example of a fast reaction is an explosion, and an example of a slow reaction is rusting. In any reaction, reactants chemical reactions® products. We can measure reactions in two ways: 1) Continuous:- Start the experiment and watch it happen; you ca .....