The undesirable overgrowth of vegetation caused by high concentrates of plant nutrients in bodies of water.
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Interesting facts about metals
Metals have been used by people since ancient times. All the time the process of obtaining them was improved, useful alloys of various metals appeared. Let’s look at interesting facts about metals.
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What are Compound Microscopes?
Most of the microscopes used today are compound. A compound microscope features two or more lenses. A hollow cylinder called the tube connects the two lenses. The top lens, the one people look through, is called the eyepiece. The bottom lens is known as the objective lens. Below the two lenses is...
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Chemistry of the sky
Chemistry can teach us about the composition of celestial bodies and determine their age.
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Features of the Scanning Tunneling Microscope
The scanning tunneling microscope (STM) invented by Heinrich Rohrer and Gerd Binnig in the 1980s still manages to do a great job today and competes with more advanced microscope types. The scanning tunneling microscope is used for studying the surface atoms that are found on various materials. The...
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What's In Your Beverage? How to Ensure Quality Control with CO2 Analytical Support
Calibration standards, performance audits, and the FDA's never-ending safety, labeling, and inspection requirements are just the tip of the iceberg when it comes to dealing with the increasingly stringent quality control standards of the beverage industry. As these quality standards become...
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Born-Haber Cycle
A series of reactions (and accompanying enthalpy changes) which, when summed, represents the hypothetical one-step reaction by which elements in their standard states are converted into crystals of ionic compounds (and the accompanying enthalpy changes.)
London Forces
Very weak and very short-range attractive forces between short-lived temporary (induced) dipoles, also called dispersion Forces.
Kinetic Energy
Energy that matter processes by virtue of its motion.
Ternary Compound
A compound consisting of three elements, may be ionic or covalent.
Nitric Acid
HNO3: A strong acid, it is toxic and can cause severe burns. Transparent colorless or yellowish, fuming, suffocating, caustic and corrosive liquid. Nitric acid boiling point is 83C. A 70 percent solution is used in the S.S.E. laboratory for junction depth measurements. Nitric acid is also present in the metal etch solution used for the Aluminum etch procedure.
Solvolysis
The reaction of a substance with the solvent in which it is dissolved.
Heat
A form of energy that flows between two samples of matter because of their differences in temperature.
Chemical Equation
Description of a chemical reaction by placing the formulas of the reactants on the left and the formulas of products on the right of an arrow.
Alpha (a) Particle
Helium ion with 2+ charge, an assembly of two protons and two neutrons.
Oxidation-reduction Reactions
Reactions in which oxidation and reduction occur, also called redox reactions.
