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CH 2240- Final Exam Guide - Comprehensive Notes for the exam ( 33 pages long!)

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School
Clemson University
Department
Chemistry
Course
CH-2240
Professor
Elliot Ennic

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Document Summary

1. 1 the structure of an atom: neutral atom same number of protons as electrons, atomic number number of protons in the nucleus, mass number sum of protons and neutrons. Isotopes same atomic number but different mass numbers: atomic weight average mass of its atoms, molecular weight sum of the atomic weights of all the atoms in the. 1. 3 ionic and covalent bonds: octet rule atom is trying to get 8 e-s in outermost shell (except hydrogen, electronegative readily acquire electrons (become negative) valence electrons (outer-most) Ionic bonds are formed by the attraction between ions of opposite charge: results from electrostatic attractions (ions of opposite charge, shares electrons electronegativity, polar covalent bonds, covalent bonds are formed by sharing electrons. 1. 8 how a double bond is formed: the bonds in ethene: ch2ch2 has a double bond between the two carbon atoms, 3 orbitals are hybridized turns into three sp2 orbitals plus one extra p.

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Related Questions




Answer to the following short questions:

1. What is the percentage of chlorine present in ?

2. What is the volume in of of oil if its density is ?

3. Find the error(s) and rewrite the text in the correct form.

“According to the Dalton model for the atomic structure, the atomic structure is composed of a nucleus in the center and electrons orbiting around it. The Nucleus has always the same number of protons and neutrons and they are located in the Nucleus. The nucleus carries almost the whole of the mass of the atom. The nucleus is positively charged and the electron is negatively charged. Anions are obtained when electrons are lost. Anions and Cations form salts via ionic bonding. Salts are always soluble in water. All Covalent compounds (molecules) are not soluble in water”.

4. What is the oxidation number of the Sulphur atom in ?

5. The following equation describes the burning of hexane in oxygen: How many moles of water would be produced if of hexane was burnt in excess oxygen?