... molecules are formed in (i.e. for every water molecule, one atom of oxygen and two molecules of hydrogen are needed). He also discovered the noble, or inert gases, and their failure to react with other substances. In 1869 a Russian chemist, best known for his development of the periodic law of the properties of the chemical elements (which states that elements show a regular pattern ("periodicity") when they are arranged according to their atomic masses), published his first attempt to classify the known elements. His name was Mendeleyev, and he was a renowned teacher. Because no good textbook in chemistry was a ...

... while the atoms are 'decaying' to a stable state their energies can be used according to the kind of energy they emit. Since the mid 1900's radioactive wastes have been stored in different manners, but since several years new ways of disposing and storing these wastes have been developed so they may no longer be harmful. A very advantageous way of storing radioactive wastes is by a process called 'vitrification'. Vitrification is a semi-continuous process that enables the following operations to be carried out with the same equipment: evaporation of the waste solution mixed with the -------------- ...

... It is mixed with other minerals. Two of these are sulfur and nitrogen. Then the coal is burned some of the sulfur changes into sulfur dioxide and nitrogen changes into nitrogen oxide. These escape in to the air as poisonous gases. Some smokestacks release chemicals like mercury, arsenic, and aluminum. Some of these minerals are changed in to gases and others become tiny specks of ash. As these chemicals drift, they may change again. They may react with other chemicals in the air. When sulfur dioxide combines with water, the result is sulfuric acid. When nitrogen oxide gas combines with water, the result is ...

... animal in any extreme temperatures. Large enclosures would not be needed as they would be for a normal elephant since the Woolly Mammoth is only three meters high. The huge tusks would allow it to scavenge for its own food, so no special feedings would be necessary. Feedings would also be needed on a less frequent basis since the Woolly Mammoth, much like today's camels, keeps under its sloping back a thick layer of blubber as nutrition when food was not needed. The problem in keeping a creature such as the Woolly Mammoth in a zoo- like surrounding would be poachers. Due to the endangerment of such a magnificent ...

... tan with long bushy tails. All wolves may look alike with their similar faces. They also may look like a German Shepherd. To tell the difference the wolf would have a larger and wider head than any dog. The young ones look like they have smaller heads but they look almost exactly how they would look if they were full grown with small paws. The wolf would move around by walking, running, or in a big pack with it’s family. The pack can have as much as 36 wolves. Each pack always has two head leaders, one male and the other female. The pack may hunt and go as far as 130 to 13,000 sq. km.(50 to5,000 sq. miles)—and ...

... process of electron transfer, each atom becomes a ion that is isoelectronic with the nearest noble gas., the substance is held together by electrostatic forces between the ions. The tendency for these ions to be formed by elements is corespondent to the octet rule, when atoms react,, they tend to do so in such a way that they attain an outer shell containing eight electrons. The factors that effect the formation of ions are ionization energy, electron affinity, lattice energy. Figure 1 The transfer of electrons involved in the formation of (a) sodium chloride and (b) calcium fluoride. Each atom forms an ion with a ...

... to safeguard the freedoms of individuals and groups in society. Other constitutions may not, but freedom operates as a politically and socially persuasive doctrine. There is no agreement as to the content of such rights. The more important rights may be said to include the right of each individual to: · freedom of speech and expression freedom from arrest or detention except under authority of law, freedom from cruel, inhumane or degrading punishments and the right to a fair trial by a competent and independent court · freedom to enjoy lawfully acquired property · equality of opportunity (including freedom ...

... changes in the variable contents of the atmosphere (particularly changes caused by human activities) could cause the Earth's surface to warm up to a dangerous degree. Even a limited rise in average surface temperature might lead to at least partial melting of the polar ice caps and hence a major rise in sea level, along with other severe environmental agitation. An example of a runaway greenhouse effect is Earth's near-twin planetary neighbor Venus. Because of Venus's thick CO2 atmosphere, the planet's cloud-covered surface is hot enough to melt lead. Water vapor is an important "greenhouse" gas. It is a major ...

... would be to find a job. According to Jerry Murphy, if you want an easy way into the chemistry field you need to know someone already in that occupation. For the most part in Missouri, employment is increasing. Nevertheless, if you are not restricted to finding a job in Missouri, in the United States a whole employment is expected to increase 21% (Choices). After finding a job in the chemistry field that you will enjoy another quesiton arises, money. On hte average if you begin working at a entry level job witha bachelors degree your salary will be somewhere around $24,000 a year. If you start work with a ma ...

... to present the potential of technology to faculty just beginning to consider it, as well as open a dialogue with colleagues regarding its utility as a research tool and a heuristic device in the sociology classroom. Three specific questions guide the discussion: 1) Why should sociologists concern themselves with the Internet?; 2) What are the various Internet technologies available to sociologists?, and; 3) How can faculty begin to integrate these technologies into their classrooms and research. Key words: teaching sociology, information technology, on-line teaching Introduction Information technology is qui ...