Chemical element

    Page 43 of 50 - About 500 Essays
  • Cow Liver Research Paper

    Information: Enzymes are catalysts for chemical reactions in living things, they help the body speed up the rate of virtually all of the chemical reactions that take place within cells.They are very important, enzymes are biological catalysts. Enzymes don’t need a lot of energy to start a chemical reaction, it all depends on the body's temperature. Enzymes need catalysts, catalyst is a substance that decreases the activation energy needed to start a chemical reaction. Enzymes are very…

    Words: 854 - Pages: 4
  • Chemical Kinetics Lab Report

    CH 204 – Introduction to Chemical Practice Experiment 10 – Kinetics Joshua Fu* Tien Tran TA: Jamie Trindell April 25, 2016 INTRODUCTION This experiment focused on the concept of chemical kinetics, which describes the speed at which a chemical reaction occurs and the amount of reactant or product remaining after a specific period of time. Kinetics is important in analyzing the rates of certain species and reactions, and is a crucial technique to predict different reactions. Kinetics is…

    Words: 1492 - Pages: 6
  • Woosh Bottle Analysis

    larger the bottle, the farther it travelled. I learned that the chemical reactions in the bottle with the ethanol and the flame creates energy which propels the rocket. The ethanol is also ‘absorbed’ by the fire of the match. If the bottle was larger, it was covered in more ethanol and had more oxygen in it, which would create a larger reaction and produce more energy. When ethanol and oxygen are reacted it is called a combustion the chemical equation is C2H5OH + 3O3 = 2CO2 + 3H2O. This tells me…

    Words: 719 - Pages: 3
  • Social Reactions To Adult Crying Analysis

    Introduction For this week’s analysis paper I have chosen an article entitled “Social Reactions to Adult Crying: The Help-Soliciting Function of Tears”, which I felt would mirror well with this week’s chapter on social psychology. Description of the rational for the study To gain a better understanding into the functions of adult crying and the general social reactions of those who are around the affected individual by comparing how people respond to an adult who is crying as opposed to…

    Words: 736 - Pages: 3
  • Synthesis Of An Enzyme

    II. Introduction An enzyme is a specific type of macromolecule known as a catalyst, that accelerates the rate of chemical reactions by taking part in the reaction without being consumed (Wilson, et al 2015). Enzymes participate in these reactions inside the cell and decrease the activation energy required to begin the reaction. These catalytic agents bind to substrates that are changed into products. A component of the enzyme that is responsible for binding to substrate or the reactant is…

    Words: 809 - Pages: 4
  • Experimental Conditions Lab Report

    Experimental Conditions It is important to note that in our lab experiment we used galena, PbS, with 170 – 200 mesh (i.e. there were 170 to 200 wires per inch of sieve used to sort out the galena crystals). This means our diameter range of our particle size was 75-90 μm. Table 1:Experimental Conditions for PbS leaching FeCl3·6H2O (g) to be added is found by: The weight of FeCl3·6H2O (g) added in our experiment was slightly larger than the theoretical amount of FeCl3·6H2O needed, as can be seen…

    Words: 2081 - Pages: 9
  • Comparing A Chemica Experiment 2-Votive Candle

    or a change in the state of matter. Chemical changes are changes that involve the re-arrangement of atoms in the molecule. They can be identified by a color change, if a new gas is given off, if a precipitate or new solid forms, and if light, electricity, or heat is given off. b. observations- The observation that was made was that there was going to be many different experiments set up. Each of the experiments that were going to be set up would have a chemical change or physical change take…

    Words: 793 - Pages: 4
  • Diel-Greener Reaction Lab Report Essay

    Green Chemistry and the Diels-Alder Reaction Purpose The purpose of this reaction is to bring about the movement of green chemistry which is a safer, more sustainable chemistry to all levels of chemistry. The use of 12 principles can make in principle a reaction greener with the use of modifications. In this lab, the Diels-Alder reaction will be performed by reacting (E,E)-2,4-hexadien-1-ol with maleic anhydride without the use of a solvent to make the reaction more greener. The reaction will…

    Words: 745 - Pages: 3
  • Chemical Reaction Between Glue And A Borax Solution

    solution. When mixed together these two had chemical reaction and formed a new substance similar to slime. A chemical change occurred in this experiment when the two altered in appearance. Chemical changes occur when a substance combines with another to form a new substance, called synthesis or, alternatively, decomposes into two or more different substances. These processes are called chemical reactions and, in general, are not reversible except by further chemical reactions. A polymer is a…

    Words: 298 - Pages: 2
  • Enthalpy Of Separation Of Hot Packs And Cold Packss

    Hot packs and cold packs are a useful item when it comes to treating injuries. Inside a pack is salt and a certain amount of water. When you break the pack, the salt mixes with the water causing a reaction that either increases or decreases the temperature. When these salts dissolve in the water it creates a reaction that is either endothermic or exothermic. Endothermic is the absorption of heat. This is when the pack gets hotter. Exothermic is the release of heat. This is when the pack gets…

    Words: 303 - Pages: 2
  • Page 1 40 41 42 43 44 45 46 47 50

Related Topics:

Popular Topics: