Chemical kinetics

these can be transferred to or shared with another atom. Valence electrons are important because they are the ones that determine the effect in a chemical reaction. Valence electrons also help determine where specific elements are located in…

The purpose of the whole lab is to use my knowledge of the periodic table to determine the identity and physical properties of each unknown element. To find the unknown elements we looked at the characteristics of the other elements and grouped the ones that were similar and belonged in the same column. By looking at the characteristics of the unknown elements if it seemed to belong in a group with others with a blank we assumed it belonged there. Mendeleev was a scientist who came up with the…

Goals The goal of the lab was to investigate the properties and structure of an unidentified compound that was discovered in a local landfill. The group was called in to help determine the chemical and physical properties of the compound so we can let the people of the town know so it can be taken care of properly with or without further precautions to be taken. Another goal of this project was to devise the synthesis of the unknown compound. Experimental Design In order to determine the…

The purpose of this lab is to understand how the elements in similar groups are together because of similar properties the elements share. Like Mendeleev, we had made connections toward the creation of the periodic table. When finding the unknown elements we used other known elements as guides and looked for similar properties. Like the Periodic Table today, it is organized through similar properties of each element and categorized in groups. Dimitri Mendeleev was a chemist from Russia who lived…

that atoms are indivisible and indestructible. He also theorized that atoms of an element are identical in properties and mass. Dalton stated that compounds are formed by combining two or more different types of atoms. Lastly, Dalton said that a chemical reaction is the rearrangement of atoms.…

Copper is one of the oldest metals known to man. Copper dating back to ancient time was discovered in Iraq. According to webelements.com, origin of name is from the Latin word "Cuprum" meaning the island of "Cyprus". Copper symbol is Cu. Copper atomic number is 29 and atomic mass of 63.546 amu. Copper is located in the 11th group on the periodic table. Copper is a transition metal, meaning metals that can be stretched into thin forms, such as wire (this characteristic is called "ductility"), and…

“Magnesium was discovered by Sir Humphrey Davy in England (1755). Sir Humphrey Davy also discovered MgO and HgO. The original name of Magnesium is Magnesia from the Greek word. In 1618, a farmer at Epsom in England gave his cows water from a well, but the cows refused to drink because of the water’s bitter taste. However, the farmer noticed the water seemed to heal scratches and rashes. The words spread out. Eventually it was recognised to be magnesium sulphate, MgSO4. Until 1755, it recognized…

Chemical castration is an effective treatment to decrease sex offences for males with paraphilic tendencies, this is an important issue because with such high rates of sexual abuse with approximately 100,000 to 500,000 children who are sexually molested each year in the United States (Ariel Rosler & Eliezer Witztum 2003). The purpose of this essay is to provide scientific evidence and reasons to why chemical castration is an effective method to reduce the chance of repeat offence in sex…

right to partially undo “stress” and produce more products. 2) At the point marked #2, the concentrations of NO, Cl2 and NOCl suddenly increase. We can assume that the container volume decreased and there is an increase in pressure. In response, the chemical system will shift in a direction that will cause…

Introduction Actual rocket ships use chemical reactions to lift off into space. Using baking soda and vinegar we can simulate a rocket taking off because when mixed together, a chemical reaction occurs. By changing the amounts of the chemicals we can determine which will allow the bottle rocket to go farther. Chemical Reaction Vinegar is an acetic acid. When an acetic acid and baking soda (sodium bicarbonate) are mixed together, three new chemicals are formed, Water (H2O), carbon dioxide (co2),…