Self Heating Food and Drink Cans Heater meals – originally developed for military use – are ready-made self-heating meal packs. They can be heated in many ways – by pressing a button on the packaging‚ unwrapping and shaking the pack‚ or pouring the contents of one bag into another and waiting for a few minutes – all of which use exothermic chemical reactions. These meals can be used to motivate students to study such reactions relatively safely and without the use of a burner. Plus there is the
Premium Magnesium Oxide Calcium
electrodes. To understand electrolysis‚ you need to know what an ionic substance is. Ionic substances form when a metal reacts with a non-metal. They contain charged particles called ions. For example‚ sodium chloride forms when sodium reacts with chlorine. It contains positively charged sodium ions and negatively charged chloride ions. Ionic substances can be broken down by electricity. Electrolysis is the process by which ionic substances are decomposed (broken down) into simpler substances when
Premium Sodium chloride Hydrogen Electrolysis
Redox Titration Analysis of a Commercial Bleach A. Purpose ! ! ! To review oxidation-reduction reactions and their stoichiometry. To learn the concept and technique of redox titration. To determine the percent (m/v) of an active ingredient‚ sodium hypochlorite (NaOCl)‚ in a commercial bleaching agent. B. Theoretical Background Whereas acid-base reactions involve the transfer of a proton‚ oxidation-reduction or redox reactions involve the transfer of electrons from one substance to another
Free Oxidizing agent Sodium Iodine
Richmonde Zegbe CHM111 Anita Mohan 03-11-2013 Experiment: Chemical reactions‚ and Equations Materials: 3 mL of copper(II) sulfate solution. 5 mL of 6 M HCl piece of zinc wooden splint test tube Bunsen burner 3 mL of zinc chloride solution. pentahydrate distill water
Premium Chlorine Chemical reaction Sodium
fumaric acid by heating an aqueous solution of maleic acid in the presence of hydrochloric acid. The hydrochloric acid serves as a catalyst of the reaction. The properties of two acids are then compared. Chemicals Maleic acid‚ magnesium ribbon‚ sodium carbonate‚ concentrated hydrochloric acid‚ bromine water‚ pH paper Apparatus 100cm3 and 250cm3 beakers‚ watch glass‚ apparatus for suction filtration (Büchner funnel and filter flask)‚ melting point apparatus‚ 25 cm3 measuring cylinder Procedures
Premium Chlorine Water Acid
The Stereochemistry of Bromine Addition: Bromination of trans-Cinnamic Acid Pitak Chuawong Objectives 1. To perform bromination of trans-‐cinnamic acid 2. To investigate stereochemistry of bromination reaction Introduction Alkenes undergo electrophilic addition to give alkyl halides. When bromine is used as a
Premium Bromine Acid Sodium
Presence of Insecticides & Pesticides in Fruits & Vegetables SCHOOL : K .V N T P C CHEMISTRY PROJECT REPORT STUDY THE PRESENCE OF INSECTICIDES AND PESTICIDES IB FRUITS AND VEGETABLES Name : Class : Reg. No : Examiner Teacher-in charge. CERTIFICATE This is to certify that the project was done by …………………………… Reg. No ……………….. Is in partial fulfillment of Chemistry Practical Examinations
Premium Iron Hydrochloric acid Filter paper
observed. When I added HCl to the Mg‚ I observed it fizz‚ turn to gas‚ and get really hot. Another example is when I added heat to the Cu(NO3)2 it dissolved‚ turned green and started turning into gas. D - Classify the following properties of sodium metal as physical or chemical: Silver metallic color – physical Turns gray in air – chemical Melts at 98oC – physical Reacts explosively with chlorine - chemical E - Classify the following changes as physical or chemical: Water freezes
Premium Chemistry Sodium Chemical reaction
water pollution. Identify A & B. 6. An organic compound P with molecular formula C2H6Ois an active ingredient of all alcoholic drinks. It is also used in medicines such as tincture iodine‚ cough syrups. Identify `P`. Drop a small piece of sodium into the test tube containing `P`.A new compound `Q` is
Premium Oxygen Chemistry Chemical reaction
Title: Production of Quick Cured Ham Objectives: General: To preserve meat using chemical methods. Specific: 1. to produce ham. 2. to compute the amount of chemicals preservation agents needed to preserve meat. 3. to learn food safety practices in handling meat and its preservation. Materials: Meat Material: Weight (gms.) Pork pigue‚ boneless‚ skinless 1.0 kg Ingredients Household Measure Weight (gms.) Pumping Pickle Solution (1.0 kg. meat) Refined Salt Curing Salt Refined Sugar Phosphate
Premium Sodium Food preservation Food