UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS General Certificate of Education Ordinary Level CHEMISTRY Paper 1 Multiple Choice May/June 2005 1 hour Additional Materials: Multiple Choice Answer Sheet Soft clean eraser Soft pencil (type B or HB is recommended) 5070/01 w w w e tr .X m eP e ap .c rs om READ THESE INSTRUCTIONS FIRST Write in soft pencil. Do not use staples‚ paper clips‚ highlighters‚ glue or correction fluid. Write your name‚ Centre number and candidate number on the answer
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how chemistry affects us today. Our entire universe is made up of matter which is constantly changing forms and evolving into other forms of energy. Most people have chosen to write their essay about how chemistry has played an important role in everyday life. The simple fact is that chemistry plays an important role in every person’s daily activities from the moment we’re born. Chemistry is the branch of science that deals with the structure of organic and inorganic matter( any substance or organism
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THE COMPANY DALISAY SWEETS No. 18 Jesus St. Roosevelt SFDM Quezon City‚ Metro Manila‚ Philippines Business Numbers: (+632) 4129057 (+632) 3731617 Fax Number: (+632) 3740442 Description: Having its roots traced back to 1952; Dalisay Sweets is one of the leading food manufacturing companies in the industry today. Headquartered in Quezon City‚ Manila‚ Philippines; Dalisay Sweets manufactures and exports tropical fruit and vegetable
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Joshua’s routine In the morning I get up at a quarter past seven when I have classes. On Saturdays and Sundays I don’t have classes‚ so I wake up at nine o’clock. I always go to the bathroom‚ I have a shower‚ brush my teeth‚ comb my hair and get dressed. I usually have breakfast at home. I usually go to school by bus. I never walk to school and when it’s raining my father drives me. At half past eight I sometimes have English and at ten o’clock I have a break. I have a sandwich and a cake
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ATER bottlers whose products were condemned by the Government Analyst Laboratory as unfit for human consumption have questioned the credibility of the laboratory. Report by Phillip Chidavaenzi The government laboratory examined samples of bottled water from several suppliers following an inquiry by NewsDay and exposed seven of them as unsafe for drinking. The water being sold under trade names Ad Life‚ Well Pure‚ Aqua Crystal‚ Century and Revive had harmful organisms and was not safe for
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The Role of E-cigarettes In Our Community Although they might be slightly more effective than nicotine patches and other aids in helping people quit smoking‚ electronic cigarettes still stand as a gateway to nicotine addiction. A recent study from the Centers for Disease Control (CDC) suggests more children and teens from middle school to high school are trying these new devices. About 1.8 million children admitted puffing on an e-cigarette with 160‚000 of them doing so with never having tried an
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gets over many difficult situations in life. Good manners and courtesies are not‚ however‚ born with us. They have to be cultivated with great care. Childhood is the best period to cultivate good manners and so both parents and teachers have a great role to
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New Begin After the summer vacation was over‚ I went back to school . The new semester began. The familiar campus evoked memories of my first. I still remembered I couldn’t find the classroom and there was a light quiver in my voice‚ my hands were shaking when I stood in front of the class to introduce myself in my first class last year. In the beginning‚ I felt uneasy and nervous in the unfamiliar surroundings. Luckily‚ I made lot of friendly friends and also oriented myself in school over the
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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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Lord Rayleigh and Sir William Ramsey succeeded in proving that there must exist a previously unknown gas in the atmosphere. They subsequently worked in their separate laboratories on this problem but communicated the results of their labors almost daily. At the meeting of the British Association in August 1894‚ they announced the discovery of Argon. They found the gas by isolating a small sample of the nonreactive portion of atmospheric nitrogen; once all the oxygen and nitrogen were removed from
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