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Oxidation number of an element 2 Feb 2013 | 04:18 pm
The oxidation number (o.n) is an integer ( can be positive or negative )represented in roman numbers (for e.g :IV ) and the role of this number is to help us in balancing reactions and identifying i...
Chemical Change Science Projects – Cool Chemistry That a Student Can Do 14 Feb 2012 | 10:50 pm
Chemistry science projects involving a chemical change are often chosen by middle and high school students. Many kids like to do an experiment with a dramatic chemical change. When searching for a pro...
Yield 26 Jan 2012 | 06:52 am
In the course of a chemical reaction , the experimentally obtained quantity of product is always less than calculated using stochiometric ratios .This difference is due to many factors : a) the forma...
Significance of a chemical equation 25 Jan 2012 | 04:06 am
How do we interpret a chemical equation ? The equation of a chemical reaction makes possible the quantitative treatment of the reactants consumed and the products formed at the microscopic scale (num...
Representation of a chemical reaction by an equation 25 Jan 2012 | 03:56 am
How do we write a chemical equation ? A chemical reaction is represented by an equation , where the reactants and products are shown through their symbols and formulas . The formulas or symbols of r...
Conservation of mass 24 Jan 2012 | 04:28 am
In an alkaline battery , two chemical reactions take place , one at the positive terminal and the other at the negative terminal . These reactions occur continuously throughout the battery life . The ...
Reactants and Products 24 Jan 2012 | 04:23 am
During a chemical reaction there is disappearance ( consumption ) of initial substances , called reactants , and appearance ( formation ) of new substances , called products . for example when iron a...
Chemical Change of matter 23 Jan 2012 | 01:05 am
Chemical change of matter is the change in the chemical entity/state of matter ( object) , however it is totally different from the physical change where just the amount or the mass or the shape of ma...
