elements bond to one another depends primarily on their valence electron count. Their shapes vary with the amount of elements included. This lab is focused on covalent compounds, which are composed of nonmetals. A bent shape occurs when one element shares two electrons with two other elements. A trigonal pyramidal occurs when one element shares three electrons with three other elements. A tetrahedral occurs when one element shares four electrons with four other elements. A linear double bond occurs
dipole-dipole forces because all polar bonds are not symmetrical, therefore there will be an imbalance of partial charges in one molecule. The partially negative charge of the molecule will attract the partially positive end of another molecule, creating a dipole-dipole interaction. Lastly, a high melting point is a physical property of hydrogen bonds. This substance was the third to melt out of the three that did, proving that a strong force such as a hydrogen bond is occurring to keep its shape and
Water Introduction In this essay the topic of water will be presented in the form of a five-page report. This will be separated into 3 sections; discussion, analysis and conclusion in reference to the different aspects of the questions imposed, which include; what is water? , when do we need it? , and why is it important? In the discussion part of this paper I will introduce the category by giving a brief explanation of what water is and the various purposes it serves in our day-to-day lives
Transition Metal Synthesis Post Lab Assignment Post Lab Questions: Diethylenetramine is a chelating tridentate ligand. The nitrogen atoms are involved in binding to a central metal ion to form a coordination complex. NH2 – CH2 – CH2 – NH – CH2 – CH2 – NH2 Salen is a tetradentate chelating ligand. The nitrogen atoms and oxygen atoms are involved in binding to the central metal ion in order to form a coordination complex. Acetylacetone is a chelating bidentate ligand. The oxygen atoms
a. Describe the molecules overall shape, structural symmetry, and bond angles. The molecule has an overall shape that compares to a symmetrical ball. The molecule is symmetrical, which is indicated by the 4 hydrogen atoms surrounding one carbon atom in the middle. The shape is a tetrahedral in bond geometry, and the angles are all 109.5, which mean that each hydrogen atom is 109.5 away from each other in sync with the middle carbon
Using Chemical Reagents and Indicators to Determine the Presence of Macromolecules Nutrients in Unknown Solutions Abstract: To use chemical reagents to test for simple sugars and starch, proteins, and fats in the multiple procedure lab. Important equipment that was involved in this experiment included the chemical reagents such as Benedict’s reagent and Lugol’s solution for carbohydrates, Sudan IV indicator for lipids and Biuret reagent for proteins because these reagents determined the colour
All chemical reactions in living organisms need enzymes in order to work, build molecules and break down molecules require enzymes. Enzymes are biological catalysts. They act as catalyst to accelerate a chemical reaction. Catalysts enzymes work by weakening the bonds that lowers the activation energy. They help break down large molecules into smaller molecules, which helps speed up chemical reactions known as our digestive enzymes. A chemical reaction takes place at the active site between the
domains that surround the central atom. Electron domain can be described as a lone pair, single, double and triple bond, and also even free radical. Lone pairs tend to occupy a lot of space and lower the angle of a bond, which gives molecular geometry. Lewis structure help determine the molecular geometries, 3D structure, and distribution of electrons in order to understand the chemical properties of reactivity and molecules like texture and microstructure. One of the most important influences
The Effect of Temperature on the Rate of Carbon Dioxide Production in Saccharomyces. Erica Smith, Fabiola Gonazalez, Serah Thuo and Maria Guerro. Majors Biology. TCC Fort Worth Campus ABSTRACT In reference to the title, the purpose of this experiment was to test the effect of temperature in the form of heat and its effects of carbon dioxide production in fungi in which yeast was used. The method was through alcoholic fermentation which does not require the presence of oxygen for the reaction
Kelley Small Maddie, Gillian, Ally 21 October 2015 Period 5 Photosynthesis and Cellular Respiration Abstract: In this lab, we tested the rate of production and consumption of Carbon Dioxide and Oxygen from spinach leaves in different amounts of light. We tested it one time using a completely dark space and one time using a space with lots of light. In order to calculate the data, we used LoggerPro and BioChambers to measure the gases in fifteen minute intervals. There are four bar graphs, measuring