Lab Report: Redox Chemical Reactions

Decent Essays
During the experiment, observations were made about their physical appearance. In part I, reaction one produced a blinding, bright white light when the metal burned and the metal turned into a white powdery substance. For reaction two, there was no reaction at first and it took a long time for it to react, but then bubbles started to form around the magnesium ribbon and the substance turned into a pink-yellowish color around the magnesium strip when it was placed in the 150 milliliters beaker. The physical observations of reaction three was the magnesium strip started to form bubbles around it and it seemed to protrude from the magnesium strip itself. Reaction four, when reacted, bubbles started to form around the magnesium strip, it started …show more content…
An oxidation-reduction, otherwise known as redox, is a type of reaction that involves the transfer of electrons between two reactants. These reactions were identified as a redox reaction because of how they turned into a different color, signifying there was a transfer of electrons which changed the physical appearance of the solution. In order for the reaction to be redox, a chemical substance has to be used up in the process and it has to create a new chemical substance. It also had to have a transfer of electrons between each other, if there is no transfer, then the reaction is not a redox chemical reaction. In reaction one, the magnesium reactant was oxidized because it lost electrons, whereas the oxygen reactant was reduced because the reactant had a gain of electrons. Reaction two’s magnesium reactant was reduced because it had a gain of electrons, while the water reactant was reduced because it lost electrons. The third reaction’s magnesium reactant lost electrons, so it was oxidized. The hydrochloric acid found in this reaction was the reactant that was reduced because there was a gain of electrons in the chemical reaction. All of the other reactions also had reactants that were either reduced or oxidized in the chemical …show more content…
An acid-base reaction is a chemical reaction that utilizes an acid and base that react to form a neutral substance because the acid and base cancel each other out. When they are formed, they tend to produce a salt. The hydrogen ions and hydroxide ions when combined, tend to form water. In order for the reactant to be an acid, it has to conduct electricity, change a blue solution to a red tint, have a sour taste, react with bases to neutralize their properties, and it has to react with active metals to liberate the hydrogen ion in an acid. In order for a reactant to be a base, it has to conduct electricity, change a red solution to a blue solution, have a slippery feeling to it, and it has to react with acids to neutralize their own properties. Reactions nine, eleven, twelve, and fourteen are all acid-base chemical reactions because the reaction involves either an acid or base. There is also a color change, or bubbles start to form from all of the reactions that were identified as an acid-base reaction. Heat is also detected in all of the reaction signifying it is conducting some sort of energy or electricity. Therefore, reactions nine, eleven, twelve, and fourteen are all acid-base chemical reactions because of the chemical properties that they

Related Documents

  • Decent Essays

    Redox Catalyst Essay

    • 991 Words
    • 4 Pages

    The oxidation state of atoms are changed. Transition metal is used as redox catalyst due to the availability of empty d-orbitals and the ability to change its oxidation state. Transition metal ions with different oxidation state have different electronic configurations. This allow them to interact in a specific fashion with different organic…

    • 991 Words
    • 4 Pages
    Decent Essays
  • Decent Essays

    Displacement Reactions: single and double displacements Introduction There are two types of displacement reactions: One type is called the single displacement reaction, the other is called the double displacement reaction. During a single displacement reaction, an element substitutes another element in a compound, creating a new element and a new compound as products. (Ritter, Plumb, Jenkins, van Kessel, & A. Hirsch, 2001) In most single displacement reactions, either a metal replaces another metal, or a non-metal replaces another non-metal. The more reactive element takes the place of the less reactive element in the compound, the reaction will not occur otherwise. The activity series show the chemical reactivity of elements.…

    • 1182 Words
    • 5 Pages
    Decent Essays
  • Decent Essays

    (4b) the magnesium before it was put into the flame was silver in color, was brittle, shiny, and reflected light. It took 45 seconds to a minute before there was a reaction once the piece of magnesium was put into the flame. First it was an edge the lit up then the entire piece of magnesium lit up and looking at it could be described as it like looking directly at the sun. Once it was place onto the table top it seem to of saterd on contact. The magnesium was wrightest/gray in…

    • 867 Words
    • 4 Pages
    Decent Essays
  • Decent Essays

    DISCUSSION There are three chemical properties will be discussed which are combustion, reaction with bromine and reaction with potassium permanganate. Combustion was used to test the unsaturation of hydrocarbon. The degree of unsaturation refers to the number of the rings and / or multiple bonds present in the hydrocarbon molecule (McMurry, 2015). Hexane was a saturated hydrocarbon, it completely combusted and emitted carbon dioxide plus water. Cyclohexene was an unsaturated hydrocarbon, it undergoes incomplete combustion (Clark, 2003) which showed the great intensity of light compared to hexane due to the higher ratio of carbon and hydrogen in cyclohexene.…

    • 909 Words
    • 4 Pages
    Decent Essays
  • Decent Essays

    Sn2 Reaction Lab Report

    • 747 Words
    • 3 Pages

    Here, nucleophile attacks the opposite direction of the leaving group. Thus, SN2 reaction always leads to an inversion of stereochemistry. This reaction works best with methyl and primary halides because bulky alkyl groups block the backside attack of the nucleophile. In addition, the stability of the leaving group as an anion and the strength of its bond to the carbon atom both affect the rate of reaction. The following figures illustrate the energy profile diagram of SN1 and SN2 reactions.…

    • 747 Words
    • 3 Pages
    Decent Essays
  • Decent Essays

    Change In Enthalpy

    • 1242 Words
    • 5 Pages

    In part 1, the strong base, NaOH, reacts with the strong acid, HCl, to produce a salt (NaCl) and water (H2O). As the molarity of both the bases and the acid was 2.0 M and equal volumes (10.0 mL) were used for each, mixing them caused a neutralization reaction where the sultion was neither acidic or basic. However, the most interesting trend was the fact that when sodium displaced hydrogen, there was a release of energy (heat) from breaking their respective bonds, and was absorbed by the water. In a similar manner, the products of reactinf KOH and were a salt (KCl) and water (H2O), in which energy (heat) is released when potassium displaces hydrogen and is then absorbed by the water. This can also be seen the changes in enthalpy of the acid-base reactions: NaOH and HCl had an enthalpy change of H = 347466.132 J/mol, while KOH and HCl had an enthalpy change of H = 3475317.694 J/mol.…

    • 1242 Words
    • 5 Pages
    Decent Essays
  • Decent Essays

    These organic acids include oxalic acids, maleic acids, muconic acids and so on[18, 20, 21]. Because of the selective nature of ozone with regard to formed by-products, whereby acidic conditions produce a low TOC removal rate, direct ozonation rarely yields complete mineralization. [22]. Alternatively, strong alkaline conditions provide an important improvement in the oxidation power of ozonation process, which can be attributed to the prevalent indirect process that incorporates the production of OH radicals by ozone decomposition in aqueous solution, especially that which is catalyzed by OH− (i.e. higher pH) shown below in the following…

    • 860 Words
    • 4 Pages
    Decent Essays
  • Decent Essays

    Azo Dye Lab Report

    • 1211 Words
    • 5 Pages

    By being protonated, the resonance frequencies are changed/altered, which in turns lessen the conjugated system’s effects. This increases the energy needed to be absorb to make an electron excited. The product was turned into azo-violet color after the sodium acetate was used to neutralize the product, because under basic environment, the azo-violet absorbs wavelengths of 500-600nm, and reflects…

    • 1211 Words
    • 5 Pages
    Decent Essays
  • Decent Essays

    Lab Report Cation Essay

    • 875 Words
    • 4 Pages

    It is necessary to add HCl to the unknown solution at the beginning because it is a strong acid so it easily dissociates in the solution and the chlorine anion can react with the cation present in the solution. In step 5, water was added to the solution and then the test tube was heated so that the bonds holding the compounds in the precipitate together could effectively break. PbCl₂ has a higher water solubility, so if a yellow precipitate formed, then that would have confirmed that lead was present. If not, then extra steps were needed to be taken to confirm the presence of silver. In step 12, K₂CrO₄ was added because if barium was present, it would react with the compound to form BaCrO₄.…

    • 875 Words
    • 4 Pages
    Decent Essays
  • Decent Essays

    From a titration the concentration of a given sample, in this case Fe(II) can be found by using a standard compound of whose concentration is known, in this example: 0.02M of KMnO4. A redox titration involves an oxidation-reduction reaction, hence the name redox. Redox reactions involve the transfer of electrons, i.e. the loss and gain of electrons. KMnO4 is an oxidising agent which means it brings about oxidation and therefore it is being reduced.…

    • 2461 Words
    • 10 Pages
    Decent Essays