10 in the Answer Box on page 2. 1 The law of combining volumes states that the ratio of gases involved in a chemical reaction can be expressed in simple whole number ratios. Identify who proposed this law? (A) (B) (C) (D) Dalton Gay–Lussac Avogadro Mendeleev 2 Which statement is correct for NO2 gas? (A) (B) (C) (D) One molecule has a mass of 46 g. One molecule occupies a volume of 24.79 L at 0°C and 100 kPa. One mole contains 6.02 × 10 23 atoms of oxygen. One mole contains 6.02 × 10 23
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Bibliography: • Altruism International. 2010. What Is Altruism? [Online] http://www.altruists.org/about/altruism/ [Accessed on August 20‚ 2010] • Anelli‚ M • Avogadro. 2007. Choice or Change? The Ambiguous Ending of Harry Potter and the Deathly Hallows [Online] http://www.the-leaky-cauldron.org/features/essays/issue19/choice%20 [Accessed on August 20‚ 2010] • Brown‚ Jen • Campbell‚ Joseph. 1993. The Hero with
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Unit-1 THE SOLID STATE QUESTIONS VSA QUESTIONS (1 - MARK QUESTIONS) 1. 2. 3. 4. 8. 9. What are anistropic substances. Why are amorphous solids isotropic in nature? Why glass is regarded as an amorphous solid? Define the term ’crystal lattice.’ Define the term voids. What type of stochiometric defect is shown by (i) ZnS and (ii) CsCl? [Hint. : (i) Frenkel defect (ii) Schottky defect] *10. If the formula of a compound is A2B‚ which sites would be occupied by A ions? [Hint. : Number of A ions is
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RATE OF REACTIONS. The reaction rate (rate of reaction) or speed of reaction for a reactant or product in a particular reaction is intuitively defined as how fast or slow a reaction takes place. For example‚ the oxidative rusting of iron under the atmosphere is a slow reaction that can take many years‚ but the combustion of cellulose in a fire is a reaction that takes place in fractions of a second (right). Chemical kinetics is the part of physical chemistry that studies reaction rates. The concepts
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Monet‚ Giuseppe Arcimboldo‚ Vincent Van Gogh‚ Rembrandt van Rijn‚ Edgar Degas‚ Max Ernst‚ Rene Magritte‚ Paul Gauguin‚ Alphonse Mucha‚ Wassily Kandinsky‚ Paul Cezanne‚ Hieronymus Bosch‚ Diego Velázquez‚ Pierre-Auguste Renoir‚ Raphael‚ Marc Chagall‚ Amedeo Modigliani‚ Caravaggio (Para 1). The Artist that caught my eye while exploring the webpage was
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CORE 1: CITIES OF VESUVIUS – POMPEII AND HERCULANEUM 1. Geographical content The physical environment: the geographical setting‚ natural features and resources of Pompeii and Herculaneum GEOGRAPHICAL SETTING/NATURAL FEATURES Located in the coastal plain known today as Campania – 200km south of Rome Known for its temperate climate and beautiful landscape Plain faces the Bay of Naples – Tyrrhenian sea to the west Mount Vesuvius dominates the Campania plain Pompeii and Herculaneum
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Final Exam Review Chapter 2 Study Questions 1. Define the following a) element b) compound c) pure substance 2. Classify each of the following as a pure substance or a mixture. For each pure substance‚ indicate whether it is an element or a compound. Which of the mixtures are solutions a) air b) titanium c) oak d) baking soda e) oxygen f) 7-Up g) wine h) carbon monoxide 3. Label each of the following drawings as element‚ compound‚ or mixture (Assume each type of circle
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PHYSICS WORD BANK By: I Made Arif Dwija Saputra (38) I Kadek Nurcahyadi Indra Pranata (39) I Gede Juniasta Datah (48) Dipta Bagaskara (49) A No Indonesia English Definition 1. Ablasi Ablation Removal of material from the surface of an object by vaporization‚ chipping‚ or other erosive processes 2. Absorpsi Absorption The way in which the energy of a photon is taken up by matter‚ typically the electrons of an atom. 3. Accelerator Accelerator An apparatus for accelerating charged particles to high
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Chemistry - Module 2 - Metal 1. Metals have been extracted and used for many thousands of years * Outline and examine some uses of different metals through history‚ including contemporary uses‚ as uncombined metals or as alloys. Contemporary Uses of common metals Metal | Uses | Iron and Steel (an alloy with <2% carbon)Good tensile strength‚ cheap‚ rusts (corrodes) | - Railways‚ bridges‚ buildings- motor cars bodies‚ ships and trains- Engine blocks‚ fire hydrants‚ drainage
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SCORE SCIENCE 10 ONE MARK MODEL QUESTION PAPER CHAPTERWISE Compiled By‚ A. JEBASINGH‚ M. Sc.‚ M.Ed.‚ M.Phil. BT Asst. (Science) Edited By‚ A. SAVARIMUTHU‚ B.Sc.‚ M.A.(Eng).‚ B.Ed. BT Asst. (Science) Typed By‚ J. LOGESH OUR SINCERE THANKS TO Rev. Bro. Dr. M.IRUDHAYAM M.Sc.(Phy).‚ M.Sc.(E&E)‚ M.Sc.(Psy).‚ M.A.(Eng).‚ M.Phil.‚ M.A.(Soc).‚ M.Phil.‚ PGDCA‚ PGDHET‚ PGDEA‚ MBA‚ M.Ed.‚ PhD. HEADMASTER & CORRESPONDENT ST. JOSEPH’S HR. SEC. SCHOOL CHENGALPATTU- 603002 CONTACT
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