produces oxygen gas. The faster the reaction is‚ the faster the pressure will increase. Thus‚ by examining the change of pressure overtime‚ the rate will be calculated and analyzed. For this investigation‚ the initial rate of the reaction is examined. Safety precautions All enzymes are potential allergens therefore eye and skin should be avoided Wear eye protection throughout the experiment and avoid rubbing eyes if the enzyme solution on hands in contact. Chemical Reagants Hydrogen peroxide solution
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Chapter 1: Intermolecular Forces: Liquids‚ Solids‚ and Phase Changes Chem 11: General Chemistry 2 Topics 1.1 An Overview of Physical States and Phase Changes 1.2 Quantitative Aspects of Phase Changes 1.3 Types of Intermolecular Forces 1.4 Properties of the Liquid State 1.5 Uniqueness of Water 1.6 The Solid State: Structure‚ Properties and Bonding A hot spring on a snowy day The Kinetic Molecular View of the Three States The characteristic properties of gases‚ liquids
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Federalism is a laboratory of democracy because states and cities are vital parts of American government. States should cater its laws to the values and wants of the people in the state. With certain situations and instances‚ national laws do not work across the nation. For example‚ laws regarding hunting‚ fishing‚ and mining may be pertinent in Alaska‚ but would be completely impractical and even dangerous if applied to some other states. Federalism allows for each individual state to create laws
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Appendix APPENDIX 1 Chemical tests for functional groups Homologous series/ Typical compound Functional group(s) Alkanes CH3CH3 ethane C – C and C–H Alkenes CH2 = CH2 ethene C=C Chemical tests/Observations Add liquid bromine in ultraviolet light (or sunlight): White fumes of HBr liberated; decolourisation of bromine occurs slowly (a) Add Br2 in CCl4 at room temperature: Decolourisation of bromine occurs immediately CH2 = CH2 + Br2 → CH2BrCH2Br (b) Add acidified
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Jill Sharkey November 26‚ 2012 English III Mr. Trujillo Objective: Persuasive Essay Riding bikes and rollerblading are great exercises‚ but they can be extremely dangerous. Wearing a helmet can help you in so many ways. It can prevent brain damage if you fall‚ and protect you from getting hurt. Many people will vote against not wearing helmets because they are ugly or uncomfortable. But wearing this piece of equipment can benefit you for life. Riding a bike is the same as driving a car
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Chemistry 101 General Chemistry Fall 2013 –Syllabus S. Bakshandeh Office Hours: MW‚ 12:00–12:35 pm & T; 1:40-2:15 pm Room 92032 and/or Lab 92011. Email: sbakshandeh@yahoo.com – The best way to reach me is by email. Please indicate your full name and section number in the “Subject/Re” box. I will not open emails without proper identification. Blurb: Welcome to your first course in college chemistry. In this course‚ we will be exploring laws‚ theories‚ and principles of chemistry as related
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Format of a Laboratory Report Your laboratory report should be divided into the following sections. Be sure to label each section! I. Introduction A brief statement of the purpose of the experiment. This is also a good place to show relevant structures and chemical equations. II. Experimental Procedure A brief outline of the experimental procedure. Be particular about reporting the amounts of materials used and any modifications made to the original procedure (avoid simply
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How has the study of chemistry affected the lives of ordinary people? Every single day‚ without even realising it‚ we use so many things that are brought to us by the discoveries and advances in chemistry. Many of these things we take for granted‚ and don’t even bother to question how it got there‚ why it is there‚ and how it works. Chemistry makes up everything in our lives‚ from the air that we breathe‚ to the plastic on the keyboard I’m typing on now‚ and a in depth study of some of the wonderful
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Chemistry is one of those subjects in school that you can take in college at an advanced level. Taking Chemistry can benefit a person in ways that you might have not thought. Chemists might actually make more money than you might have thought. You might be interested in a chemistry career‚ so read the following and see for yourself if chemistry is the career path for you. The Product Development Chemist develops new products and technologies‚ improves older products or their methods of production
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Scientists require a large amount of equipment in order to successfully plan‚ complete‚ and analyze experiments they conduct. The specific apparatus used varies significantly from lab-to-lab and depends mostly on that particular lab’s planned experiments. However‚ most lab equipment falls into one of a relatively small number of categories. Glassware The bewildering array of available glassware includes several specialized pieces of equipment that scientists use to measure liquids and crystallize
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