Grade 11 Dynamics Lab Report Friction SPH3U1-02 Williams. C. By----James & Hao Feng & Henry Zhang Purpose: By measuring the friction and μ of a container and change different variables including mass‚ surface and gradient‚ get causes of the change of friction and μ. Materials: A container Three Pen bag in different mass A rough wood board A clean desk Rulers Thrust meter. Steps Prepare
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Chemical Reactions Lab Synthesis Reactions: Synthesis reactions occur when two elements or compounds combine to create one single compound. The general equation of synthesis reactions is: A+B→AB. The following are the complete balanced equations for the five synthesis reactions performed in the lab. Reaction 1: Reaction 2: Reaction 3: Reaction 4: Reaction 5: The reaction of CO2 and water is a prime example of a synthesis reaction. This is a synthesis reaction because it follows the general
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Iron Age Hoplite Warfare brings about the First Democratic Societies in Archaic Age Greece‚ Following the Role of Monarchy‚ Feudalism and the Aristocracy As per the coverage in our course‚ in the Persian War‚ a Greek force from Athens set out to meet the invading Persian army at Marathon‚ and set them running. They were outnumbered by the Persians two to one‚ and the Persian army had been the biggest force the Greeks had ever seen. The majority of the killing took place while the Persians were
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membrane through color change and sugar tests. 2. To speculate osmosis occurring in dialysis bags and potato cores by comparing percentage change in masses. Background information: Molecules are always in random‚ constant movement due to their kinetic energy. This causes the molecules of a cell to move around and bump into each other. The random movement of molecules from an area of high concentration to low is called diffusion. Osmosis‚ a specific kind of diffusion with respect to water takes
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ILab‚ Week #2 CATIONS AND ANION LAB Introduction The purpose of this lab is to demonstrate a double-replacement reaction of ionic compounds. In this experiment‚ you will combine two ionic compounds. Both compounds are soluble in water. If a response happens between these two compounds‚ then a precipitate will form because one of the two resultant compounds is not soluble in water. This is a hint that a reaction took place. Cations are positively charged ions that are attracted to the cathode
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too high or too low will cause the enzyme to denature‚ because they alter the charged groups of amino acids that make up the active site causing certain ions to be attracted and cluster around the negatively charged group‚ therefore interfering with the binding of substrate and changing the rate of activity of the enzyme. This is‚ because the ions that have clustered around the negatively charged amino acid group‚ that are in the active site‚ distort or change the shape of the active site therefore
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Flame lab test Chemistry Introduction The lab test performed was to determine characteristic colors that were produced by specific metallic ions that are shown in a flame. This happens when an electron gains energy; the electron moves from an energy level that’s farthest away and to an empty orbital close to the nucleus with higher levels‚ so one of the electrons gives off energy. A flame test is a visual test where the energy is in the form of a color change and the change can
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mark thoroughly. Be sure to fill in the boxes for your student number‚ name and lab section; then correctly fill in the corresponding bubbles beneath them. A periodic table and other useful information are attached to the back of the exam. There are 4 exam pages and 26 questions. Check to be sure you have answered them all! 1. (zero points) Which version of the exam do you have? (a) A (b) B 2. (5 points) Which two ions have the same electron configuration in the ground state? (a) Rb+ and Cs+ (b)
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Caviness- Thames Lab Partner: Dena Jackson Reaction lab “I certify that this lab report is my own work‚ except for properly referenced and cited information. I have adhered to all guidelines published in the student handbook on Academic Integrity‚ as well as all guidelines published for this class in the Syllabus and Academic Integrity Handouts.” Purpose- The purpose of this lab was to display to us a variety of different reactions using an eclectic of things in the chemistry lab: including magnesium
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the iron rivets used for the construction of the Titanic were cheaply made and resulted in the damage from the iceberg to be more extensive than normal. The problem of the iron rivets were the way they were created. The usual composition for iron rivets would use about two percent of a substance called slag (Spignesi 265). “Slag is glass residue that is left over from smelting metallic ores” (Spignesi 265) It is used in iron rivets to make them structurally stronger
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