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- 1. The Physics Of A Crystal
Most simple chemical compounds consist of crystals. If you were to examine a lump of crystalline material very closely, you would be able to see tiny individual crystals. All crystals have a definite geometric shape, determined by the way the atoms are linked together. Mineralogists recognize 32 different classes of crystal, which are grouped into
2. The Greenhouse Effect
is another alarming problem that we have encountered through our own negligence. The earth's atmosphere consists of mostly nitrogen along with oxygen and small amounts of other gases. One of these gases, carbon dioxide, affects the temperature on the earth. The earth already contains the amount of carbon dioxide needed. Through the burning of fossi
3. Benzene
, C(6)H(6), is a clear, colorless, flammable liquid that is insoluble in water.Its boiling point is 80 degrees C (176 degrees F). In the past was obtained from the distillation of coal in the absence of air. Today most is made syntheticallyfrom petroleum products. The is a closed ring of six atoms connected by bonds that resonatebetween single and
4. Cellular Respiration
begins with glucose. Glucose is the primary fuel used in glycolysis, the first stage of . This molecule is found in the gel-like substance called cytoplasm that fills the cell. In glycolysis, glucose undergoes phosphorylation by ATP. The ATP is converted back to ADP. The glucose molecule is rearranged and undergoes a second phosphorylation by ATP.
5. Diamonds
A Diamond is one of the two natural minerals that are produced from carbon. The other mineral is Graphite. Even though both of these minerals are produced from the same element ,carbon, they have totally different characteristics. One of the most obvious difference is that Diamond is hard and Graphite is soft. The Diamond is considered to be the mo