molecule bonded to the cation. The centre metal ions which from complex ions are also known as cations. To form complex ions‚ cations musts have empty orbitals with low energy such as 3d and 4s orbitals to accept lone pair electrons from ligands. Cations with higer charge attracts ligands more easily. D-block metals with their high charge and empty orbitals have these features. So‚ it can form complex ions readily. Apparatus and Materials: Measuring cylinder‚ suction filter
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HSC Physics Space 1. The Earth has a gravitational field that exerts a force on objects both on it and around it Define weight as the force on an object due to a gravitational field Mass is a measure of the amount of matter in an object‚ it is measured in kilograms (kg). The weight of an object is a measure of the force with which it is attracted by a gravitational force‚ it is measured in Newtons (N). It is directly related to the strength of the gravitational field at a point where the object
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* Microbiology: Study of microorganisms Most microorganisms are pathogenicFalse The majority of bacteria are harmless True Total number of bacterial species: about 10 million to a billion What is a microorganism? An organism or virus too small to be seen without a microscope. (Smaller than 0.5 mm) Ex: Bacteria‚ Fungi‚ Protozoa‚ Algae‚ and Viruses Microbiom: collection of microbes Human cells vs. Microbial cells = 1:10 Which statement about Michaelangelo is not correct? A. He was
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Representative Elements I. Elements A. Representative Elements: Groups 1A through 8A ← Filling s and p orbitals ← First member of a group forms the strongest ( bonds; results in diatomic molecules B. Transition Elements: center of the table ← Filling d orbitals C. Lanthanides & Actinides: listed separately‚ on the bottom on the table ← Filling 4f and 5f orbitals II. Metals/Nonmetals/Metalloids A. Metals: ← Lose valence electrons to form cations
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CHAPTER 1 INTRODUCTION: THEMES IN THE STUDY OF LIFE OUTLINE I. Life’s Hierarchical Order A. The living world is a hierarchy‚ with each level of biological structure building on the level below it B. Each level of biological structure has emergent properties C. Cells are an organism’s basic units of structure and function D. The continuity of life is based on heritable information in the form of DNA E. Structure and function are correlated at all levels of biological organization F. Organisms are
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column‚ which was a dark orange color. Reversing order of eluents would make both pigments come out at the same time. While Lycopene and beta-carotene have the same number of double bonds lycopene has all trans double bonds‚ which have better P orbital alignment‚ and hyperconjugation. There was quite a bit of space between the two pigments in the column‚ making for a successful separation. TLC can be used to check
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Measure Motion is described as a time rate of change of position. Angular velocity involves a time rate of change of position‚ which is expressed by an angle. It is important to be able to relate the angular description of circular motion to the orbital or tangential description‚ that is‚ to relate the angular displacement to the arc length s. The arc length is the distance traveled along the circular path and the angle θ is said to subtend (define) the arc length. A unit that is very convenient
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The Grignard Synthesis of Triphenylmethanol Abstract: Grignard synthesis of triphenylmethanol was achieved by use of the Grignard reagent phenyl magesium brominde. The organometallic grignard reagent was synthesized by use of a reflux apparatus recrystallization techniques. Once synthesized it was used in a Grignard reaction that involved nucleophilic addition to a carbonyl in order to make triphenylmethanol. The final product was solidified and recrystallized and spectral data was
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GENERAL CHEMISTRY ELECTRONIC STRUCTURE AND PERIODIC TABLE A. Electronic Structure 1. Orbital structure of hydrogen atom‚ principal quantum number n‚ number of electrons per orbital 2. Ground state‚ excited states 3. Absorption and emission spectra 4. Quantum numbers l‚ m‚ s‚ and number of electrons per orbital 5. Common names and geometric shapes for orbitals s‚ p‚ d 6. Conventional notation for electronic structure 7. Bohr atom 8. Effective nuclear
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------------------------------------------------- Rocket A rocket is a missile‚ spacecraft‚ aircraft or other vehicle which obtains thrust from a rocket engine. In all rockets‚ the exhaust is formed entirely from propellants carried within the rocket before use.[1] Rocket engines work by action and reaction. Rocket engines push rockets forwards simply by throwing their exhaust backwards extremely fast. Rockets for military and recreational uses date back to at least 13th century China.[2] Significant
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