Unit 1 – Lesson 1 Chemistry Key Questions 1. Element Standard Notation # Of Electrons # Of Protons # Of Neutrons Sodium 23 11 Na 11 11 12 Chromium 24 Ca 26 26 27 ? Phosphorus 32 P 15 15 16 2. Fireworks; Which metals burn to produce these colours? Red – Lithium (Sr) Blue – Cesium (Cs) Pink – Potassium (K) Yellow/Green – Copper (Cu) Orange – Carbon (Ca) 3. Let’s say that the three bottles contain Fe(NO3)3‚ BaCl‚ and AgNO3. These are Iron (III) Nitrate‚ Barium Chloride
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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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Mass Media in our life Everywhere‚ every day‚ exciting things are happening. Each day is filled with news. People learn news and views during reading newspapers and magazines‚ talking over the telephone or they are kept informed by watching TV or listening to the radio. The press‚ the radio and television play a big role in the life of the society. They inform‚ educate and entertain people. They also influence the way people look at the world and make them change their views. Mass media plays a
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Let’s imagine that in this world with no government‚ I’m typing this article for you on my MacBook right now. And let’s imagine that there’s a very large man--we’ll call him Biff--who doesn’t especially like my writing‚ so he walks in‚ throws the MacBook on the floor‚ stomps it into little pieces‚ and leaves. And before leaving‚ Biff tells me that if I write anything else he doesn’t like‚ he’ll do to me what he did to my MacBook. Well‚ in doing that he just established something very much like
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and praise Allah SWT and praise Him for His tolerance and goodness. We bear witness that there is no one worthy of worship except Allah. He has ordered us to honour and be good to our parents. We bear witness that the Holy Prophet Muhammad SAWS is the true Messenger of Allah‚ who warned us not to be disobedient to our parents: Allah has made disobedience to parents one of the major sins. O Allah‚ shower Thy choicest blessings on him‚ his friends and relatives -- all those who were tolerant of one
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The Life of a Teenager: Then and Now When my parents were my age they had high expectations for this generation. They didn’t expect us to have smart phones‚ or the internet. They expected stuff like flying cars‚ or teleportation. But to be fair‚ every generation has high expectations for the next generation; sometimes they get fulfilled‚ sometimes they don’t. The things that are important to a teenager’s life in my generation are 3 things: your social life‚ athletics‚ and your technology. When
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The Chemistry of Life 3.1 Chemical Elements and Water 3.1.1 State that the most frequently occurring chemical elements in living things are carbon‚ hydrogen‚ oxygen and nitrogen. Carbon‚ hydrogen‚ oxygen and nitrogen are the most frequently occurring chemical elements in living things. 3.1.2 State that a variety of other elements are needed by living organisms‚ including sulphur‚ calcium‚ phosphorus‚ iron and sodium. Other elements are needed by living organisms including sulphur‚ calcium
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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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many information. Others think that social media is about the way we get many updates from people who we follow and maybe someone out there thinks social media is a part of a new marketing strategy. Nowadays‚ social media seems like a big part of our life. When your friends didn’t reply to your text‚ you can greet them on Facebook. When you want to listen to music or see a music video from your favorite singer – go to YouTube. When you just wake up and open your eyes‚ you don’t have to walk outside
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