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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CHEMISTRY Guess Paper – 2013 Class – XI Subject - CHEMISTRY MAX MARKS=90 ……………………………………………………………………………………… General instructions: All questions are compulsory. Marks for each question are indicated against it. Questions number 1to 8 are very short –answer questions‚ carrying 1 mark each. Answer these in one word or about one sentence each. Questions number 9 to18 are short –answer questions‚ carrying 2 marks each. Answer these in about 30 words each. Questions number19 to27
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Atoms are the smallest entities which resemble the properties of an element and cannot be broken down into smaller parts. Molecules are formed when two or more atoms are combined. This formation can happen in a variety of ways. When two oxygen atoms join O2 is formed‚ and when three oxygen atoms join O3 or ozone is formed. Both of these have different properties. Different atoms can also combine to form molecules. Hydrogen combines with sulfur to form H2S and hydrogen and oxygen also combine
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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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nuclei of atoms in particular patterns. You will discover these patterns (and how electrons sometimes act like passengers boarding a bus) with the Electron Configuration Gizmo™. To begin‚ check that Lithium is selected on the PERIODIC TABLE tab. 1. The atomic number is equal to the number of protons in an atom. How many protons are in a lithium atom? ________3_____ 2. A neutral atom has the same number of electrons and protons. How many electrons are in a neutral lithium atom? ______3_______
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The notion of the atom all stared about 450 BC when a Greek scholar starting think when can something break on more‚ when are the pieces at their smallest‚ this mans name was Leucippus. Leucippus also had pupil who also thought the same way as Leucippus‚ his name was Democritus. They developed there ideas and when Democritus died his theory summed up briefly was that everything in the world was made of tiny pieced that could not be broken up any more. That how the word atom was derived from the Greek
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BOHR’S MODEL OF ATOM MADE BY:-GROUP-1{CHEMISTRY} About The Scientist……. HE was a Danish physicist who made foundational contributions to understanding atomic structure and quantum theory‚ for which he received the Nobel Prize in Physics in 1922. Bohr was also a philosopher and a promoter of scientific research. He was born in Copenhagen on 7 October 1885. He wrote many books like the theory of spectra and atomic constitution‚ atomic theory and the description of nature. NEILS BOHR
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1.dote (dt) intr.v. dot·ed‚ dot·ing‚ dotes To show excessive fondness or love: parents who dote on their only child. DOTE‚ Span. law. The property which the wife gives to the husband on account of marriage. .. It is divided into adventitia and profectitia; the former is the dote which the father or grandfather‚ or other of the ascendants in the direct paternal line‚ give of their own property to the husband; the latter (adventitia) is that property which the wife gives to the husband‚ or that
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n° = 20 e- = 18 2- D) Ca E) S ____________________________________________________________________________ 5) What mass in grams does 2.87 moles of sodium atoms have? 25 A) 1.39 x 10 B) 66.0 C) 8.01 D) 1.39 x 10 24 E) 1.73 x 10 24 ____________________________________________________________________________ 6) How many potassium atoms are contained in 15 g of potassium? 23 26 24 A) 2.3 × 10 B) 3.5 × 10 C) 9.0 × 10 D) 1.6 × 10 24 25 E) 3.3 × 10 ____________________________________________________________________________
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In the 18th and 19th centuries scientists wrestled with identifying and describing the nature of the “stuff” that produced change. One concept that became popular for a while was that of “caloric” (what we now call heat). “Caloric was originally conceived of as a quantity that would flow from a hotter object to a cooler one that would warm up as a result. It answered the need for a way for the cause of warming to get from here to there. Not only did caloric serve as a cause for warming‚ it
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