A device used for accelerating charged particles along a straight line path.
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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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Diamonds Are Forever
Diamonds are still a girl's best friend, right? We love the shiny gems. They are the most popular rocks sold today. But what exactly are they, anyway? Where do they come from? What else are they used for?
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The most expensive metal in the world
Do you think the most expensive metal is gold? No! On earth there are more valuable metals. But we need to divide the value of metals that occur in nature, and metals - isotopes, which are obtained in special laboratories. Let’s look at natural metals first.
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Chemical Safety
People use chemicals every day for a wide array of purposes, which can include work and house hold duties. Many of us fail to realize that we are actually handling potentially deadly chemicals when we simply clean the bathroom or wash the car. This brings to mind the reason why chemical safety 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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Binary Acid
A binary compound in which H is bonded to one or more of the more electronegative nonmetals.
Biodegradability
The ability of a substance to be broken down into simpler substances by bacteria.
Compound
A substance of two or more elements in fixed proportions. Compounds can be decomposed into their constituent elements.
Pairing Energy
Energy required to pair two electrons in the same orbital.
Acetic Acid
CA3COOH, clear, colorless liquid, pungent odor. Boiling point 140C, flash point 54C (closed cup), autoignition temperature 38OC.
Solubility Product Constant
Equilibrium constant that applies to the dissolution of a slightly soluble compound.
Cloud Chamber
A device for observing the paths of speeding particiles as vapor molecules condense on them to form foglike tracks.
Denaturation
A process pertaining to a change in structure of a protein form regular to irregular arrangement of the polypeptide chains.
Photochemical Oxidants
Photochemically produced oxidizing agents capable of causing damage to plants and animals.
Thermal Cracking
Decomposition by heating a substance in the presence of a catalyst and in the absence of air.
