Reaction

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    In experiment 2, we observed that the reaction of halogenoalkanes with aqueous alkali and water which contains dissolved silver nitrate. Halogenoalkanes are alkanes which have one or more hydrogen atoms replaced by halogen atoms such as fluorine (F), chlorine (Cl), bromine (Br) and iodine (I) which are the elements in group 7 in periodic table. Halogenoalkanes have the general formula, RX, whereby R is an alkyl or substituted alkyl group and X is any of the halogen atom. Besides, halogenoalkanes can also be classified into three categories according to what is attached to the functional group such as primary, secondary and tertiary halogenoalkane. In experiment 2(a), we use 2-chloro-2-methylpropane as a halogenoalkane to react with aqueous alkali which is potassium…

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    Chemical Reactions

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    Review 3: Text Chemical reaction is the changing of substances to other substances by the breaking of bonds in reactants and the formation of new bonds in products. There are many different types of reactions. Many reactions can be assigned to more than one classification. The same reaction can be classified in different ways. It is important and useful to know all the different types of reactions because they often refer the reactions as being of one type or another. The first reaction is…

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    Reaction Lab

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    experiment began with a reaction of a 1cm3 cube of lamb liver and 5mL of hydrogen peroxide solution being put in test tubes in a beaker filled with 10℃ water until the temperatures of the liver and hydrogen peroxide were 10℃ also. The liver was put into a 100mL measuring cylinder and the hydrogen peroxide was also poured in as the timer was started. After twenty seconds, several millilitres of froth had been produced from the chemical concoction. This froth was recorded into a results table, and…

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    Reaction Time

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    Reaction Time Definition: Reaction time is the speed at which the brain responds to a stimulus and formulates a response. This is vital in most sports. The most obvious example is responding to the gun at the start of a race, but another example is a goalkeeper saving a penalty. Importance: Sprinters need a fast reaction time so that they can react to the gun at the start of the race and begin moving as soon as they hear it. This gives them a better start and for such a short race every fraction…

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    Reaction Investigation

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    Aim: - The aim of this experiment is to find out on how the independent variable which is the temperature changes that reaction rate of the magnesium and hydrochloric acid (HCI). Hypothesis: - As the concentration increases, the rate of reaction increases as well. Variables: - The independent variable is the volume of hydrochloric acid - The dependent variable is variable is the volume of the hydrochloric acid and the duration of reaction. - The controlled variables are length of the strip of…

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    Rate Of Reaction

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    investigated the effect in which concentration had on the rate of reaction. The purpose of this experiment is to test different concentrations of hydrochloric acid with sodium thiosulfate and to see how long it would take until the cross underneath the flask is no longer visible through the milky white solution. Collision theory A collision is when two or more object run into each other. But collision theory is, that only some particle collisions make changes (or are fruitful). Fruitful or…

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    Chemical Reactions Lab

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    Chemical Reactions I Purpose The purpose of this experiment was to test and see how four different chemical reaction worked. The four different chemical reactions are formation, decomposition, single-replacement, and double-replacement. The hypothesis of this experiment was that in each of the different reactions something would happen to the reactant whether it be color, mass, temperature, or pressure. II Equipment For this experiment Late Nite lab was used. In Late Nite Lab the equipment…

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    Chemical Reaction Lab

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    Rate of Chemical Reaction and the Factors Affecting Reaction Rates The purpose of these labs is to investigate and determine how three factors- concentration, temperature, and a catalyst- affect the rate of a chemical reaction. In the first lab, “Rate of Chemical Reaction,” 1 x 8-well micro strips were used to combine a potassium iodate solution and a sodium meta-bisulfite solution under different conditions; each trial was timed from the point of the first visible reaction until the last well…

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    Exothermic Reaction Lab

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    lab was conducted to find the key differences between the quantity of heat (q) and ∆H of a substance. Different masses of substances CaCl2 and NH4NO3 were dissolved in water to see how changing mass impacts the q and ∆H of a substance. When the two substances dissolve, they become ions. CaCl2 dissolves in a reaction of: CaCl2 Ca2+aq + 2Cl1-aq while NH4NO3 dissolve in a reaction of: NH4NO3 NH41+aq + NO31-aq . As shown in these reactions, when ionic compounds dissolve in water, they break into…

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    Uncatalyzed Reaction Lab

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    determine the rate and order of the reaction. Three trials were done, the first trial acted as a baseline, then the following two trials each varied the concentration of a single reactant, allowing us to calculate the order of the reaction. Additionally, the temperature of the solution was changed to see what effect that would have on the rate. Using this information the activation energy for this reaction could be calculated and compared to the activation energy of the uncatalyzed reaction. …

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