Importance of chemistry : 1. Chemistry can improve the conditions of human life and even save lives. 2. Provides deeper knowledge. 3. * Plastics that are as strong as metals but light weight. * Personal care and household products * Polymers or various sizes and shapes * Metal alloys * Drugs from various ailment CONTRIBUTION OF CHEMISTRY : 1. Food and agriculture 2. energy production 3 . environment preservation 4 . education 5 . clothing 6. colors and
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EXPERIMENT 2: SYNTHESIS OF ORANGE II (2-NAFTHOL ORANGE OBJECTIVE 1. To produce dye based to the coupling of diazonium. 2. To understand the characteristic of dye orange II. INTRODUCTION The first dye was introduced by William Henry Perkin on 1856. It can be produced by the coupling of diazonium sulfanilic acid with nafthol in alkaline solution.. This was the common method used to produce dye nowadays. In this experiment‚ dye produced was the orange II. Azo compound is compound that contain
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Language Arts B2 15 April 2014 KILLER PLATIC BAGS DAN DAN DANN! Have you ever wondered why lots of marine animals are dieing? “Thousands of marine animals are dieing because of confusing plastic bags with food”. (Environment CA). Plastic bags are also bad for the environment because they are not 100% decomposable. Distributors and investors say that the ban began because plastic bags where such a success. (Bag the Ban) Plastic bags are killing mother earth. They are nothing but
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Chemistry Gen: Course Description Year 2 PART - II CGT 21a Unit I. Basic physical chemistry I * Gaseous state: Gas laws‚ kinetic theory of gas‚ collision and gas pressure derivation of gas laws from kinetic theory‚ average kinetic energy of translation. Boltzmann constant and absolute scale of temperature‚ Maxwell’s distribution law of molecular speeds (without derivation)‚ most probable‚ average and root mean square speed of gas molecules‚ principle of equipartition of energy (without
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Extraction of Aluminium Aluminium ore is called bauxite. Bauxite contains aluminium oxide‚ water‚ iron oxide and other impurities. The purified dry ore‚ called alumina‚ is aluminium oxide (Al2O3). The alumina must be molten for electrolysis to work‚ since the ions are not free to move in the solid state. Unfortunately‚ alumina has a high melting point (2040 °C) and it is not practical to do electrolysis at such a high temperature. In the middle of the nineteenth century it was found that alumina
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5.6 Decision Making --Work File * Read the course resources regarding decision making. Complete the following requirements. 1. List three life decisions that you made that have changed your life in some way. Choose one and write two paragraphs about it. (Total 10 points) a. Breaking my arm b. Taking apush c. Waiting to get my permit 2. Write two paragraphs about the decision you made. (Total of 10 sentences‚ 10 Points) When I was four I broke my arm. It was not my decision to break
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LITTLE BEADED BAG By: Morley Callaghan PLOT DIAGRAM -Eva lies to Mrs. Evans about what happened to the bag. -Eva brings Mrs. Evans the bag -Mrs. Evans goes through Eva’s possessions -Mr. and Mrs. Evans argue about the bag and Eva - She realizes she’s in the wrong. -Mrs. Evans questions Eva about the bag. -Sends Eva out on an errand. . Mrs. Evans in her room searching through her things. She can’t find her little beaded bag‚ blames Eva (maid) -Mrs. Evans asks Eva to fix the bag. CHARACTER
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Chemistry 42 Course Syllabus Introductory General Chemistry Santa Rosa Junior College Spring 2013 Section 5618 - Course Information Lecture W‚F 7:30 – 9:00 PM (1999 Bech)‚ Lab W 9:00 – 12:00 PM (1948 Bech) Instructor of Record: Dr. Valeria Martinovic My office is in 1914 Bech. My Spring office hours are Mondays 10:00-10:30 PM‚ Wednesdays 7:00-7:30am‚ 9:00-10:30am‚ Fridays 7:00-7:30am. Leave a message at any time by e-mail at vmartinovic@santarosa.edu. Course description: Welcome
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Source: Chemistry by C. Mortimer PP 1-5 Chemistry by R.S. de Borja PP 1-5 Definition of Chemistry Chemistry is concerned with the composition and the structure of substances and with the forces that hold this structure together. And the changes that undergoes with the energy involved in them. History Chemistry which emerged‚ took hundreds of years to develop the history of its development can be divided ranging into five
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Use of Plastic bags Modern science has helped us in making our lives more comfortable and easy. It has given us everything and more than we wanted. Plastics are one of the greatest inventions of modern science. Plastics play a major role in our lives. The inventors of it little knew about it’s harmful consequences that we are facing now as they thought it to be a boon to mankind. Today they are a great threat to the environment. Everywhere around us we find plastic bags as a carrier of all kinds
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