Chemistry Essays and Term Papers

one common thing posted on their walls; a poster of the periodic table. The periodic table is simply a chart of all known elements, arranging them as defined by periodic law; it orders the elements by increasing atomic number, displaying the periodicity…

motion of the molecules of a substance, while heat transfer is the movement of heat from a warmer object to a cooler one. This theory of heat transfer can be proven by observing the cooling of water in a glass. The hot water tries to transfer heat…

in a small nursing home in Sancellmoz, the world lost a legend. Marie Curie passed away at the age of 66, due to pernicious anemia - a severe complication due to prolonged exposure to radiation. Her work will forever be a positive influence…

in the periodic table following the alkaline earth metals are described as transition metal; this term is sometime extended to include the lanthanide and actinide elements. There position in the periodic table is between the s-block and p-block…

obvious impacts on the local environment, but signs of environmental change across a larger region and on a broader scale are subtle and difficult to interpret. Connecting dead trees and bare ground to a nearby smelter complex is not hard. But what…

by observing variety of reaction. Precipitation will occur by precipitation reaction this is a reaction that two or more solution reacts to produce a precipitate. Also, there are often double displacement reactions. For example solution of Lead(&sup2…

the percent yield of the precipitate; by performing double displacement reaction between solutions of two different compounds. Introduction First of all when making a solution of two different compounds; there will many variables that can be…

experiment is to determine the amount of fat contained in a hotdog. It will be found in the form of a percentage of the total amount of hotdog used. Materials: 1. 10.0 grams of finely chopped hotdog meat 2. 250 mL beaker 3. 17 mL of 1.5M NaOH …

Chloride; the product will be copper and iron chloride. However, in this experiment, we do not have the information of the oxidation number for iron nails. There are 2 different oxidation numbers for iron; that are 2 or 3. We will need to check each…

with one mole of NH3OH+ in order to partially balance the equation: NH3OH+ + 2Fe+3 "" ? + 2Fe+2 and to find the missing product. Procedure: H2C2O4 and H2SO4 were titrated with potassium permanganate. The molarity of the permanganate was then found…