Molecular formula from empirical formula 1) There is a whole number multiple of the empirical formula in the molecular formula MF – (EF) n Molar mass/ empirical formula mass = n EMPRICIAL FORMULA FROM COMBUSTION DATA 1) In a combustion reaction an organism sample is burned in the presence of oxygen and produces CO2 and H2O as main products. 2) A hydrocarbon is a molecule that contains only carbon and hydrogen 3) Combustion analysis of naphthalene‚ a hydrocarbon used in mothballs
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LAB 4 Read over the parts of the microscope and answer the following questions: 1. What do you call the lens you look through on the microscope? Ocular 2. What is the difference between the ocular lens and the objective lens? Ocular lens is the lens you look through and objective lens is the lens that is close to the stage. 3. Where do you place the slide on the microscope? the stage under the stage clips 4. Which adjustment‚ course or fine‚ do you use when you are observing the
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Name: Angel Simon Pre–Lab Question Ocular lens 1. Label the following microscope using the components described within the Introduction. Experiment 1: Virtual Magnification Exercise Post-Lab Questions 1. At what magnification do you first notice the ragweed pollen? Answer: 1000 2. Which is bigger‚ a rhinovirus or E. Coli? Answer: E. Coli 3. Based on the magnification‚ how many of the E. Coli can fit into the same space as the
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Cell Structure I. Cell History A. Anton Leewenhock (1600s) - first person to observe cells - in pond water‚ using a homemade microscope B. Robert Hooke (1665) - observed many kinds of animal tissue under a microscope - concludes that all animals are made up of cells C. Schwann (1868) - observed many kinds of animal tissue - concludes that all animals are made up of cells D. Schleiden (1869) - observed many kinds of plant tissue - concludes that all plants are made up of cells E. Cell
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Name: _______________________________________ Date: _________________ Per: _____________ Cells: The Basic Unit of Life Directions: Define the key terms and then complete the following Section Reviews after reading through Sections 5.1 through 5.3. You will complete your answers on a separate sheet of paper and then staple this worksheet on top. Vocabulary Words: Cells Cell Wall Prokaryote Chromosome Cell Theory Nucleus Nuclear Envelope Cytoplasm Cell Membrane Eukaryote
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Exercise 7.3 (training!!!) 1. Find the oxidation numbers of the underlined elements in the following species. (a) (e) (i) (m) (q) (u) (y) 2. SO3 PbSO4 CoCl42CrO42SO32Ca(NO3)2 Co(NH3)43+ VO2+ CaH2 KMnO4 SCl2 N2 NaOH (c) (g) (k) (o) (s) (w) HCO3[Al(OH)4]MnO42NO2FeCl3 KOCl (d) (h) (l) (p) (t) (x) H2S2O7 H2O2 Cr2O72K2SO4 CH4 Pt(CO)4 Which of the following equations represent redox reactions? Specify the species being reduced in each case if applicable. (a) (b) (c) (d) NaI(s) + 2K(s) + 2NH3(g)
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The End of Nature Book Review Introduction 1 a) When Bill McKibben originally wrote this book in the late 1980s‚ the two observations were that we tell time badly and that our sense of scale is awry. 1 b) Nothing at all has changed‚ but actually gotten worse. It has increased by 15%. 1 c) Three pieces of evidence that support global warming is that sea levels will rise‚ warmer seasons and a lot more hurricanes will come. 1 d) Everything we do involves fossil fuels and in order to
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The Nature of Business – IMAX This business report will analyse and explain certain significant areas in business environment in reference to the Sydney IMAX Theatre. We will look at the business life cycle‚ the main elements of the business’s environment‚ the internal and external influences on the business and the social responsibilities of the business. 1. Classify the business and summarise its stage in the business life cycle‚ include a brief history The Sydney IMAX Theatre is a large privately
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Certificate of Authenticity This is to certify that “K.SANTHOSH KUMAR” a student of class 12th has successfully completed the research product on the topic “HUMAN EVOLUTION” Under the guidance of Mrs. KALPANADEVI (PGT BIOLOGY) This project is absolutely genuine and does not indulge in plagiarism of any kind. This reference taken in making this project has been declared at the end of this project. Signature {Teacher In-Charge}
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What is the state of nature? The state of nature is a term in political philosophy that describes a circumstance prior to the state and society’s establishment. Philosophers‚ mainly social contract theory philosophers‚ and political thinkers such as Thomas Hobbes‚ John Locke‚ and Jean Jacques Rousseau discussed and considered the "state of nature" as a starting point to their political and philosophical ideas. John Locke‚ whose work influenced the American Declaration of Independence‚ believes that
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