Preview

Unit 7 Catalysts Pre Lab Answers

Good Essays
Open Document
Open Document
569 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
Unit 7 Catalysts Pre Lab Answers
Lab 7: Catalysts
Introduction
Pre-Lab Questions
1. What is a catalyst? An enzyme is a biological catalyst that speeds up chemical reactions in the body.
2. If you continue to add more catalyst will the speed of a reaction always continue to increase? Explain your answer. It will continue to speed up the reaction until there is more catalyst than the limiting reactant.
3. In this lab you will produce oxygen and water from hydrogen peroxide (H2O2). Write a balanced reaction equation for this reaction. 2H2O2(l)------>2H2O(l)+O2(g)
4. What causes the bubbles to form in this reaction? The production of oxygen (O2)
5. The exhaust gas from car engines pass through catalytic converters that contain very small amounts of solid platinum, palladium,

You May Also Find These Documents Helpful

  • Powerful Essays

    Ap Biology Unit 1 Summary

    • 2660 Words
    • 11 Pages

    * Enzymes are biological catalysts, and catalysts are chemicals that speed up chemical reactions without being consumed in the process…

    • 2660 Words
    • 11 Pages
    Powerful Essays
  • Good Essays

    A catalyst is very similar to track spikes. Spikes increase a runner’s speed, as a catalyst speeds up the chemical reaction time in a plant. Neither the catalyst nor shoes are changed in these actions. Enzymes are macromolecules that act like catalysts. A catalyst will lower the activation energy within a seed, which will allow the reaction to go quicker.…

    • 482 Words
    • 2 Pages
    Good Essays
  • Good Essays

    Easy Peasy

    • 401 Words
    • 2 Pages

    4. Different concentrations of hydrogen peroxide solution were added to each test tube using a pipette. (5mL of 6%, 3% and 1.5%)…

    • 401 Words
    • 2 Pages
    Good Essays
  • Better Essays

    An enzyme is a protein that acts as a catalyst, a chemical agent that speeds up a reaction without being…

    • 2988 Words
    • 12 Pages
    Better Essays
  • Satisfactory Essays

    Enzyme Lab Quiz

    • 293 Words
    • 2 Pages

    a. Enzyme: biological catalysts that regulate chemical reactions that occur in cells. Responsible for things such as converting food to energy, replace old damaged tissues, disposal of cellular waste products. Are responsible for lowering the activation energy.…

    • 293 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    French Questions

    • 900 Words
    • 3 Pages

    A: An enzyme is a catalyst and it either starts, or speeds up a chemical reaction by lowering the activation energy without being changed or used up.…

    • 900 Words
    • 3 Pages
    Good Essays
  • Good Essays

    Reactant Lab

    • 1010 Words
    • 5 Pages

    a. When a gas has formed possibly. Although in Reactant 2 Table B produced a visible reaction with the fizzing, not all reactions can produce that visible sign, as observed by me and my partner in Reactant 3 Table B.…

    • 1010 Words
    • 5 Pages
    Good Essays
  • Good Essays

    Enzyme Lab Using Jello

    • 1445 Words
    • 6 Pages

    Enzymes are known as protein catalysts. The name protein catalyst suggests that most enzymes are made of proteins. A catalyst is a substance that speeds up chemical reactions without being consumed in the process. (Giuseppe, M 2002, p.69). After a reaction has been catalyzed, the catalyst can be used again to catalyze the same reaction. Enzymes reduce the activation energy (minimal energy) it takes for a reaction to take place. Enzymes can either catabolize (destroy), or anabolize (build up) a chemical system.…

    • 1445 Words
    • 6 Pages
    Good Essays
  • Good Essays

    Lab Report

    • 1017 Words
    • 5 Pages

    Enzymes are biological molecules that catalyze chemical reactions. In enzymatic reactions, the molecules at the beginning of the process, called substrates, are converted into different molecules, called products. Almost all chemical reactions in a biological cell need enzymes in order to occur at rates sufficient for life. Like all catalysts, enzymes work by lowering the activation energy for a reaction, thus dramatically increasing the rate of the reaction. As a result, products are formed faster and reactions reach their equilibrium state more rapidly. Most enzyme reaction rates are millions of times faster than those of comparable un-catalyzed reactions. As with all catalysts, enzymes are not consumed by the reactions they catalyze, nor do they alter the equilibrium of these reactions. However, enzymes do differ from most other catalysts in that they are highly specific for their substrates. Enzymes are known to catalyze about 4,000 biochemical reactions.…

    • 1017 Words
    • 5 Pages
    Good Essays
  • Satisfactory Essays

    chemistry coursework

    • 378 Words
    • 2 Pages

    Enzymes are biological catalysts. They are proteins folded into complex shapes that allow smaller molecules (substrate molecules) to fit inside them. The place where these substrate molecules fit into is called the active site. The enzymes are denatured if the shape of the enzyme changes and the active site will no longer work.…

    • 378 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    Metabolism

    • 710 Words
    • 3 Pages

    Enzymes act as a catalyst by speeding up or slowing down processes in the body.…

    • 710 Words
    • 3 Pages
    Good Essays
  • Best Essays

    A catalyst is a substance that reduces the activation energy of a chemical reaction, making it energetically viable. It is also used to speed up the rate of a chemical reaction. Enzymes are an example of a catalyst that can be found in the body. They are biological catalysts which are mainly made up of proteins. It is produced to speed up chemical reactions and remain unchanged after a reaction. Enzymes have active site for the substrate to attach to, either to be broken up or joined together. They are also specific in their reactions, they only speed up certain reaction as the active site can only fit a certain substrate and does not work for the other substrates. Also, enzymes will only work properly upon strict optimum conditions. They lower the…

    • 1705 Words
    • 7 Pages
    Best Essays
  • Powerful Essays

    Biology

    • 39898 Words
    • 160 Pages

    • Enzymes are biological catalysts. This means that they lower the energy required to start a chemical reaction within a cell but do not get used up by that reaction. Every reaction and process within a cell (metabolism) is controlled by a specific enzyme.…

    • 39898 Words
    • 160 Pages
    Powerful Essays
  • Better Essays

    Bio Chem Task 4

    • 1649 Words
    • 5 Pages

    Enzymes do their work as catalyst by speeding up the process to improve performance. They lessen the activation energy making producing products easier .Enzymes act on specific substances in our bodies. The enzymes will fit into the substance or substrate like a lock and key .Once it is with its certain substrate, it acts like a key and it unlocks the substrate and the substrate can do what it needs to do and then the enzyme will releases from it and is not changed ,then it moves on to another substance.…

    • 1649 Words
    • 5 Pages
    Better Essays
  • Good Essays

    Catalytic Converter

    • 687 Words
    • 3 Pages

    Catalytic converters are an integral part of converting much of the pollution that comes out of a car’s exhaust. (2) Since the 1970´s, almost every car has a catalytic converter integrated to reduce harmful emissions. I will explain the chemistry behind the catalytic converter and how it works.…

    • 687 Words
    • 3 Pages
    Good Essays

Related Topics