reaction 2. Part A: Which term describes the degree to which an element attracts electrons? *Electronegativity Part B: Which terms describe two atoms when they form a bond in which electrons are completely transferred from one atom to the other? *Anion and Cation Part C: Which of the following statements is true of the bonds in a water molecule? *Oxygen holds electrons more tightly than hydrogen does‚ and the net charge is zero Part D: Which of the following statements is not true of most cellular redox
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It can also be converted to its metal salt by reaction with sodium hydride or lithium diisopropylamide (LDA) + Na H – Sodium hydride [ ( CH3 ) 2 CH] 2 N – Li + Lithium diisopropylamide (LDA) Alkylation of Acetylides Acetylide anions are both strong bases and good nucleophiles They undergo nucleophilic displacement reactions with alkyl halides to form new C-C bonds to alkyl groups; that is‚ they undergo alkylation
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Ghiladi - Exam 1 Name: ______________‚ ______________ ID #:______________ (last) (first) Directions: 1. WRITE AND BUBBLE in LAST NAME‚ FIRST NAME and ID# on the Scantron sheet 2. Enter exam code 111 in the ‘Special Codes’ section of the Scantron sheet 3. Write your name and ID# on this exam paper 4. Hand in all materials before leaving the classroom 5. FAILURE TO FOLLOW DIRECTIONS WILL RESULT IN A ZERO h = 6.6262 x 10-34 J•s c = 3.00 x 108 m/s RH = 3.290 x 1015 s-1 Bohr radius
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Fcps part1 paper November 2012 1000. Contractile unit in skeletal muscle is between.. a. h discs b. z lines c. t tubules 992. Diaphragm is supplied by a. C3 b. C3‚4‚5 c. C4‚5 d. C4‚5‚6 A 80 yr old male comes to surgical OPD ‚with complaint of watery discharge coming out from umbilicus ‚he has a prostatic enlargement for the last 5 yrs ‚what is the cause ? A) prostatic cancer B) patent vitelointestinal duct C) patent urachus D) constriction
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CNS Lecture 03rd October Resting Membrane Potentials Dr Penny Murphy Objectives The student should be able to: Describe the basic building blocks of the central nervous system. Explain what a “resting membrane potential” (RMP) is and how it is generated. Include the characteristics of the phospholipid bilayer‚ leak membrane channels and the diffusion of K+ ions‚ and the role of the Na+/K+ ATPase pump. Explain how and why increasing the permeability of the membrane to Na+ ions will
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Published on Web 05/25/2006 A Solid-State 95Mo NMR and Computational Investigation of Dodecahedral and Square Antiprismatic Octacyanomolybdate(IV) Anions: Is the Point-Charge Approximation an Accurate Probe of Local Symmetry? Michelle A. M. Forgeron and Roderick E. Wasylishen* Contribution from the Department of Chemistry‚ Gunning/Lemieux Chemistry Centre‚ UniVersity of Alberta‚ Edmonton‚ Alberta‚ Canada T6G 2G2 Received January 6‚ 2006; Revised Manuscript Received April 6‚ 2006; E-mail:
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Amines are aliphatic and aromatic derivatives of ammonia. Amines‚ like ammonia‚ are weak bases (Kb = 10−4 to 10−6). This basicity is due to the unshared electron pair on the nitrogen atom. Classification and nomenclature of amines Amines are classified as primary‚ secondary‚ or tertiary based upon the number of carbon-containing groups that are attached to the nitrogen atom. Those amine compounds that have only one group attached to the nitrogen atom are primary‚ while those with two or three
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The oxygen anion then attacks the hydrochloride portion to create an alcohol. The chloride ion attacks hydrogen in the hydroxylamine to create hydrochloric acid. The alcohol will then attack the HCl to create an oxygen cation. The lone pair on the hydroxylamine will attack the carbon‚ releasing water and creating a double bond between the nitrogen and carbon. The remaining
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the atom. Ions may exist in solid‚ liquid‚ or gaseous environments‚ although those in liquid are more common and familiar. Ions that are charged with positive electricity are known as cations and travel towards a negative pole known as a cathode. Ions that are charged with negative electricity are known as anions and travel towards a positive pole known as an anode. The phrase “opposites attract” is a good depiction of this reaction. Electrolytes; how ions keep us going. Ions existing in a
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In this lab‚ theoretical chemical equations of ionic compounds were balanced by the group to determine ratios of reactants and products. The products were determined by the group through switching the cation with their anion partner. Using this information‚ it was determined by the group‚ whether the reaction should result in a solid‚ gas‚ or water based on theoretical solubility. Then several experiments testing the reaction of these ionic compounds were performed by the partners. Two ionic compounds
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