Difference Between Single And Double Displacement Reaction

Superior 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. The general
…show more content…
Single displacement reaction happens in the test tube A and double displacement reactions occur in both test tube B and C. In test tube A, the reactants are copper sulfate and magnesium. Magnesium is an element and copper sulfate is a compound. In a single displacement reaction, a reactive element displaces another less reactive element in a compound. After checking the activity series for metals, I know that magnesium is more reactive than copper sulfate; so that in the reaction, magnesium takes place of the copper element in copper sulfate to produce copper metal and magnesium sulfate. During the reaction, a red-brown precipitate is produced. This means either copper metal or magnesium sulfate is insoluble. The solubility tables show that magnesium sulfate is soluble, so that the precipitate is copper. Copper is a solid element and has the same colour as the precipitate, which proves that the single displacement reaction occur in test tube …show more content…
As the reactants don’t contain a single reactive element, the reaction cannot be single displacement. Thus, the reaction is a double displacement. Double displacement reaction is a chemical reaction, in which the positive ions of two different chemical compounds exchange and produce two new compounds. In the reaction, Calcium and magnesium element of two compounds exchange, forming the calcium sulfate and magnesium chloride. I noticed that during the reaction, some white powder is produced and starts precipitating at the bottom of the test tube. After checking calcium sulfate and magnesium chloride in the solubility table, I found out that the precipitate is calcium sulfate as it is insoluble in water.
In addition, double displacement also occurs in the test tube C. The positive ions of magnesium sulfate and sodium carbonate exchange and form magnesium carbonate and sodium sulfate. I checked both sodium sulfate and magnesium carbonate’s solubility in the solubility tables, which shows that magnesium carbonate is insoluble in water and sodium sulfate is insoluble; so magnesium carbonate is the precipitate at the bottom of the test tube. As a result, the type of reaction in test tube C is double

Related Documents

  • Great Essays

    Purpose: The purpose of our experiment was to precipitate Copper (II) Phosphate Trihydrate and determine percent yield, also to react an aqueous solution of Copper (II) Chloride with aqueous Sodium Phosphate and describe the reaction. Procedure: To conduct our experiment 10 milliliters of CuCL2 and 8 milliliters NaPO4 was added to its own 50 milliliter beaker. These solutions were then combined in a 150 milliliter beaker and mixed for 1 minute. The PH of the mixed solution was checked to see if it was accurate enough to go on with the experiment. The solution was then filtered using the vacuum filtration technique.…

    • 779 Words
    • 4 Pages
    Great Essays
  • Improved Essays

    6.03 Calorimetry Lab

    • 1044 Words
    • 5 Pages

    Prepare a chart for recording any observations as you test for the presence of cations in the solution. Set up and label 10 test tubes #1- #10 and place them in order in a test-tube rack. Wash and rinse all of glassware with distilled water. Prepare a hot-water bath in a 250 mL beaker by filling it up to 150 ml and bringing it to a boil. Obtain 2 ml of the solution you want to test and pour it into test tube 1.…

    • 1044 Words
    • 5 Pages
    Improved Essays
  • Improved Essays

    The purpose of this lab was to determine the formula of copper chloride hydrate by dehydration through heating, rehydration through adding water back in, the reaction of aluminum with the copper chloride hydrate to produce solid copper, and the weight of this copper. To accomplish this, a petri dish was weighed and 1.01 g of copper chloride hydrate was added to the dish. The solid salt crystals were broken up to make sure that all of the hydrate would be heated the same. Next, the petri dish and hydrate were heated upon a hot plate for roughly 15 minutes, until all the salt crystals were brown instead of blue. This indicated that all of the water had been burned out of the hydrate, leaving dehydrated copper chloride.…

    • 494 Words
    • 2 Pages
    Improved Essays
  • Great Essays

    Unit 6 Lab

    • 1514 Words
    • 7 Pages

    This is the reason why Calcium is more reactive than Magnesium, since it can…

    • 1514 Words
    • 7 Pages
    Great Essays
  • Improved Essays

    A Hydrate’s Empirical Formula Aaron Meehan Ethan 11/06/17 Kotiba 09J I have read and agree to the terms of the Academic Honesty Statement. _ Aaron Meehan____________11/06/2017 _____________________ Student Signature…

    • 1196 Words
    • 5 Pages
    Improved Essays
  • Improved Essays

    Unknown Compounds

    • 816 Words
    • 4 Pages

    For the reaction that formed the precipitate, using stoichiometry, the masses were equal between the unknown beginning, the hypothesized beginning, the unknown ending, and the hypothesized ending, once again confirming our…

    • 816 Words
    • 4 Pages
    Improved Essays
  • Superior Essays

    Sarah Bounab BQD Experiment 2: Copper/Iron Stoichiometry Abstract: The purpose of the Copper/Iron Stoichiometry lab was to determine which of the two possible iron sulfate compounds formed when reacting aqueous copper(II)sulfate with solid iron metal. The techniques used in this lab were weighing by difference, quantitative transfer, and vacuum filtration. At the end of the experiment it was found that iron was the limiting reactant and iron(II)sulfate was a product of the reaction between 7.0002g of copper(II)sulfate and 2.0101g iron metal which produced 2.3037g of copper product with a percent yield of 100.72%.…

    • 1522 Words
    • 7 Pages
    Superior Essays
  • Improved Essays

    The Copper(II)Carbonate was heated until it completely changed its color. The Bunsen Burner was turned off and the Limewater was immediately poured into the test tube used to collect the gas. Observations were…

    • 1370 Words
    • 6 Pages
    Improved Essays
  • Improved Essays

    Determining The Process of Photosynthesis And Cellular Respiration Using Elodea and Yeast Introduction Photosynthesis is an essential process to life on earth, in which plants and other organisms use sunlight to create food from oxygen, and carbon dioxide. Cellular respiration is when energy in food is released and converted to ATP, which is then used as chemical energy to complete tasks within a cell. This process usually requires oxygen and releases carbon dioxide. Photosynthesis and cellular respiration are similar in some areas and different in others. The purpose of both of the process is to produce energy, but they have different ways of achieving this goal.…

    • 1180 Words
    • 5 Pages
    Improved Essays
  • Improved Essays

    In this experiment, two cations in an unknown solution were found using qualitative analysis. For Part A, the solution was to contain either silver or lead, while in Part B, the solution that was set on the side form Part A was identified to contain either calcium or barium. Part C explored a different method through the use of cation flame tests to observe colored flames from six metal chloride solutions. In Part A, the initial step was to add HCl to the unknown sample.…

    • 885 Words
    • 4 Pages
    Improved Essays
  • Great Essays

    By combining the unknown compound with an acid, a base, and two salts, its reactivity was determined. Reacting the unknown compound with sulfuric acid (H2SO4) produced no visible reaction (precipitate), although the pH of the resulting solution was very acidic. Combining the unknown compound with sodium hydroxide (NaOH), a strong base, also had no visible reaction. However, the resulting solution was a lot more basic. Reacting the unknown compound with sodium nitrate (NaNO3), a salt, did not have a visible reaction nor did the pH of the resulting solution change.…

    • 1428 Words
    • 6 Pages
    Great Essays
  • Improved Essays

    Magnesium Oxide Lab Report

    • 1193 Words
    • 5 Pages

    The burning of magnesium in open air causes a chemical reaction that forms the compound, magnesium oxide. This reaction occurs due to the heat that provides energy to activate the reaction. A blinding white flame will burn as the reaction occurs. In this lab, magnesium is burned in an open crucible over a Bunsen burner several times until the magnesium ceases to burn. This process allows for the magnesium to completely react with the oxygen found in the open air, forming the chemical compound magnesium oxide.…

    • 1193 Words
    • 5 Pages
    Improved Essays
  • Improved Essays

    Then, the test tube was placed into an ice bath for fifteen minutes. The precipitate formed was then filtered using vacuum filtration. Once the filtration process was completed, we measured the powdery solid using constant weighing to obtain the dry yield of the product formed. The acetaminophen synthesized was used to perform cerium and universal indicator tests.…

    • 839 Words
    • 4 Pages
    Improved Essays
  • Improved Essays

    Iodometry Lab Report

    • 1421 Words
    • 6 Pages

    This will dissolve and oxidize copper into Cu2+. The solution was then heated to remove the brown NOx fume. This is necessary since NOx acts as an oxidizing agent and will oxidize I in the redox reaction to be observed. When all NOx fume is removed, H2SO4 was added and the solution was heated until white SO3 fumes appear. The addition of H2SO4 will drives off all nitrogen oxide gas that can interfere with the redox reactions. The SO3 vapor that is observed is an indication that all NOx has been driven off.…

    • 1421 Words
    • 6 Pages
    Improved Essays
  • Improved Essays

    Both reactions at station two did not react. Station three had a reaction occur between sodium carbonate and calcium sulfate forming sodium sulfate and calcium carbonate. The precipitate was calcium carbonate. Station four formed a…

    • 939 Words
    • 4 Pages
    Improved Essays