«When AgNO3 is added to a saturated solution of AgCl, it is often described as a source of a common ion, the Ag+ ion. By definition, a common ion is an ion that enters the solution from two different sources. Solutions to which both NaCl and AgCl...» Summary abstract
«Heat is energy flowing from a high temperature object to a low temperature object. When the two objects are at the same temperature, there is no net flow of energy or heat. That is why a covered cup of coffee will not be colder than or warmer than...» Summary abstract
«Hardness has been defined in several ways over time, mostly by physicists, metallurgists and engineers. Different definitions range from hardness being defined as a collection of properties of a material more or less related to each other to...» Summary abstract
«In his State of the Union Address, President Bush made the observation that the United States had become addicted to foreign oil. The recent surge in gas prices is clearly reflective of this addiction. Americans have become so reticent in their oil...» Summary abstract
«The objective of this experiment is to determine the total concentration of metal ions required to completely react with EDTA, or ethylene diamine tetra-acetate. The concentration determined will then be taken as the equivalent concentration of...» Summary abstract
«From the age of twelve and older nearly 40% of our country, about 98 million Americans, has used Cannabis sativa for its psychological and physiological effects in much the same way as it has been throughout recorded history (AMA Council). This...» Summary abstract
«Chromatography is a technique used to separate and analyze chemicals. It was initially discovered in the early 1900’s by chemist Mikhail Tsvett who was researching chlorophyll to separate plant pigments.1 The components undergoing separation are...» Summary abstract
«The blade of a turbine is tilted an angle.
Movement of the air is channeled creating low and high pressures on the blade that force it to move.
The blade is connected to a shaft which in turn is connected to an electrical generator.
The...» Summary abstract
«LSD, the common abbreviation for Lysergic Acid Diethylamide-25, often termed “acid” in the streets, is one of the most potent hallucinogenic substances known to man. The chemical was actually synthesized for the first time in 1938 by a German...» Summary abstract
«As living things, we are highly sensitive to changes in our environment; this doesn’t only mean changes outside our body, but changes from within also. For the cells in our bodies to function properly a certain temperature and pH has to be...» Summary abstract
