Earth Science Vocab Unit 4 Celestial Objects-A natural object which is located outside of Earth’s atmosphere‚ such as the Moon‚ the Sun‚ an asteroid‚ planet‚ or a star. Arc- a continuous portion of a circle Constellation-A group of stars forming a recognizable pattern that is traditionally named after its apparent form or identified with a mythological figure. Apparent daily motion- Objects in the sky appear to rise in the East and set in the West each day. This apparent daily motion
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Natural Causes of Climate Change The earth’s climate is influenced and changed through natural causes like volcanic eruptions‚ ocean current‚ the earth’s orbital changes and solar variations. Volcanic Eruptions When a volcano erupts it throws out large volumes of sulphur dioxide (SO2)‚ water vapour‚ dust‚ and ash into the atmosphere. Large volumes of gases and ash can influence climatic patterns for years by increasing planetary reflectivity causing atmospheric cooling. Tiny particles called aerosols
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Etymology The name atom comes from the Greek ἄτομος (atomos‚ "indivisible") from ἀ- (a-‚ "not") and τέμνω (temnō‚ "I cut")‚[3] which means uncuttable‚ or indivisible‚ something that cannot be divided further.[4] The concept of an atom as an indivisible component of matter was first proposed by early Indian and Greek philosophers. In the 18th and 19th centuries‚ chemists provided a physical basis for this idea by showing that certain substances could not be further broken down by chemical methods
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responsible for the colour of a transition metal complex? A. B. C. D. The absorption of light when electrons move between s orbitals and d orbitals The emission of light when electrons move between s orbitals and d orbitals The absorption of light when electrons move between different d orbitals The emission of light when electrons move between different d orbitals 8809-6101 Turn
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organic chemistry – Sigmatropic‚ electrocyclic‚ everything up to week 6. Quiz 2 (week 11‚ 1 hour) – Pericyclic reactions and rearrangements 4 Revision Important topics include but not limited to:1) Structure of molecules – Atomic orbitals‚ molecular orbitals‚ hybridization 2) Mechanism of reactions – curly arrows‚ chemical reactions‚ substitution‚ elimination‚ etc 3) Delocalization and conjugation – theory of resonance‚ structure of alkenes‚ allyl‚ vinyl systems. 4) Acidity‚ basicity and pKa
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Copernican Heliocentrism impact to Modern Science Michael White WGU February 24‚ 2011 Thesis Statement: Nicolas Copernicus Heliocentrism helped to revolutionize science and catapult man into space. Introduction: Early science and astronomers believed the earth to be the center of the universe; this was known as the Geocentric Model. Prior to the 17th Century the Catholic Church held onto and defended the Geocentric Model as the divine order of planetary alignment and man’s hierarchy in
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| 2) Orbitals never hold more than 2 electrons at a time. |This concept is called the | |Why does it make sense? | 3) Electrons enter separate orbitals in the same sublevel one-at-a time before pairing up. |
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6753_Klein_00.qxd 5/1/07 5:02 PM Page ii 6753_Klein_00.qxd 5/1/07 5:02 PM Page i 6753_Klein_00.qxd 5/1/07 5:02 PM Page ii 6753_Klein_00.qxd 5/15/07 2:14 PM Page iii ORGANIC CHEMISTRY I AS A SECOND LANGUAGE Second Edition DR. DAVID R. KLEIN Johns Hopkins University JOHN WILEY & SONS‚ INC. 6753_Klein_00.qxd 5/1/07 Marketing Manager Production Manager Production Editor Cover Designer 5:02 PM Page iv Amanda Wygal Pamela
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resistant and other are radioactive. Copper known as a transition metal and located in the eleven’s column and on the fourth period in periodic table. It has 4 shells and in the valence shell there are 11 electrons. Copper has 1 s orbital electron and full d-orbital‚ which explains the ability being ductile and conductivity. According to physical properties‚ copper is reddish brown metal. It has very high melting and boiling points‚ which are 1083⁰C and 2595⁰C. The density of metal is 8.96 g·cm−3
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Dr. Bolaños CHEM 110 - Exam #3 Fall 2010 Student Number _____________________ Name:________KEY_____________________________ There are 11 questions totaling 104 points (8 pages). PLEASE look over the entire examination BEFORE you begin to ensure your packet is complete. REMEMBER: The best place to start your exam may not be at the beginning! You have 2 hours to complete this examination and may only use a basic scientific calculator and the periodic table provided. All work must be shown
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