Chemistry Essays

Chemistry essays are different from those who are more related to creative writing. They should be based on critical thinking, logic, and proper evaluation. Sometimes these essays are built on solving chemical equations and other problems. You need to have the solid theoretical background to prepare homework which deserves the highest grade. When students cannot cope with the tasks alone, they seek help at writing service. Our company is one of the best in this specialization. We do not only offer free samples on any topic but help with preparing the entire work within the quickest time.

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Which fruits can power a light best from the acidic level in them

MATERIALS 1. copper electrode 2. zinc electrode 3. multimeter capable of measuring voltage 4. flashlight light bulb 1.2 volts 5. screw base or socket for light bulb 6. wires 7. aligator clips 8. board for mounting the base or board 9. 2 lemons 10. 2 grapefruit 11. 2 bananas 12. …

Determining the Percentage of Copper in a Copper Ore

Aim: To determine the percentage of copper present in malachite. Hypothesis: That the percentage of copper in the malachite will be four percent. Materials: 2 x 250mL beaker, pestle, malachite, sulfuric acid, water, 2 x filter paper, funnel, filter stand, Safety Precautions: Wear safety glasses at all times when dealing …

Continuous Stirred Tank Reactors

A continuous stirred tank reactor (CSTR) is a continuous reactor that runs at a steady state. They are used most frequently with liquid phases, but can handle gas or solid reactions as well. No matter what the reactants are or the product is, all CSTR’s have the same components. There …

Do ions combine in definite ratios

1.The reaction that occurred in the experiment was a chemical reaction, double displacement-precipitate reaction. The Copper reacted with the carbonate and form the precipitate, while the Sodium and Sulfate was the ?clear? part in the test tube. CuSO4 (aq) + NaCO3 (aq) à CuCo3(s) + NaSO4 (aq) 2.Refer to table …

The Biochemistry of Snake Venom

Snake venom is the poison fluid normally secreted by venomous snakes when biting. It is produced in the glands, and injected by the fangs. Snake venom is used to immobilize and/or kill prey, and used secondarily in defence. It is a clear, viscous fluid of amber or straw colour. There …

Osmosis and Diffusion Lab

The purpose of this lab was to observe the rate of osmosis and diffusion, as well as the effect of molecular size of the particles on this rate. Part I of the lab was a demonstration of osmosis and diffusion, that dealt with raisins in different liquid environments, each with …

Structural Methods in Inorganic Chemistry

In order to synthesize our metal complexes, we were able to make both Copper and Ruthenium metals. From this, we combined each metal complex with DMSO by refluxing the compound. The metal complexes were analyzed through their melting point and IR spectroscopy to determine whether the metal bonded to a …

Western Front and Jünger’s The Storm of Steel

The First World War erupted only a decade into the twentieth century, and it defined civilizations for many subsequent years. Erich Maria Remarque’s All Quiet on the Western Front and Ernst Jünger’s The Storm of Steel both concern this war, however the two offer different perspectives of the war and …

Student Response Sheet

1. What do we call electrical messages that are sent down the axon of a neuron? Action potentials 2. In one sentence, describe how the electricity in an action potential is generated. Generated by the opening of gated sodium channels 3. Draw a diagram of the cell membrane of the …

The Effect of Temperature on the Rate of Diffusion

Molecules undergo constant motion and move in regions with a higher concentration to a lower concentration and this process is called diffusion. It is where particles make numerous collisions with one another and so with the partition. This movement of the particles causes them to be equally and uniformly distributed …