Br Br NaNHz KH 200 0 =

Q: The standard Gibbs free energy (∆G°rxn) for the formation of sulfur trioxide from sulfur dioxide and…

A: Given reaction: SO2 (g) + ½ O2 (g) → SO3 (g) The standard Gibbs free energy (∆G°rxn) for the…

Q: Question 3 The pH of an aqueous solution is 4.22. What is [H] for this solution? O-0.63 M O 1.7x104…

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Q: To raise the temperature of 20 moles of ideal gas by 20 °C at constant pressure we must supply 1000R…

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Q: 3 What is the biggest difference between the Lewis and the AO-model in terms of the localisation of…

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Q: 3. Calculate the change in enthalpy for this reaction using the ffg reactions: AH rxn= 181 kJ N +0 →…

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Q: what mass of a 5.39% by mass copper(ll) sulfate solution

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Q: Which of the following combinations of n and I represent real orbitals and which are impossible?…

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Q: тон OH

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Q: Iron (II) Fe Oxide Calcium Oxide CI FeCl Iron (III) Sulfide Anions Phosphide Iron (III) Phosphide…

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Q: Which of the following bonds would produce the weakest absorption? B) O-H C) sp³ C-H A) symmetrical…

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Q: For the reaction 2CO2(g) + 5H2(g) → C₂H₂ (9) + 4H₂O(g) AH = 46.5 kJ and AS° = 124.8 J/K The standard…

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Q: Name this amine, including (R,S) stereochemistry.

A: Given compound is organic compound as it contain carbon and hydrogen atoms.

Q: Which refluxing apparatus is set up for the addition of new reagents as the reaction progresses? B-1…

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Q: A voltaic cell is constructed from a standard Co²+|Co half cell (Eºred = -0.280V) and a standard…

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Q: 11. Choose the major product. e (A) O... (B) meo 12. Choose the major product. E + C TEN mes hv sell…

A: This are the examples of pericyclic reaction.  Pericyclic reactions are those reactions which occurs…

Q: What is the percent yield for this reaction under the given conditions? Express your answer to three…

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Q: Which refluxing apparatus is set up to keep moisture out? < OC OB and C OA O B T none

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Q: The enthalpy change for a certain reaction is -209.4 kJ and the entropy change is 585.7 J/K.  What…

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Q: a) Select the most consistent trials and calculate the average volume of titrant added. b) Calculate…

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Q: Select the best reagents to produce the product shown as the major or exclusive product. OH O…

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Q: (d) Give the possible term symbols for the following electron configurations, showing your working:…

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Q: (p) Trace the hemiacetal in the following monosaccharide: CH₂OH O CH₂OH OH OH OH (q) Identify the…

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Q: 29. Assuming a Michael addition was used to prepare the following product, choose the starting…

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Q: Complete the following reactions by supplying the necessary reagents. Type the THREE LETTER CODE…

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Q: 1. How many chirality centers are in this molecule? Br I H3C-CHCHCH3 I OH OA.1 O B.2 OC3 O D. The…

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Q: Which is the net ionic equation for the oxidation of S₂O32- to S4062- and the reduction of iodine to…

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Q: 20. What is the product obtained from the following reaction? Circle one answer. OH 4 heat 3 OH 2 OH

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Q: 1. A thermite reaction was used historically to weld. In the reaction, solid aluminium and solid…

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Q: How many hydrogen atoms are in the following hydrocarbon? A 8 B D 12 5 10 :

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Q: Calculate the pH of a buffer solution formed by mixing 300.0 mL of 0.25 M NH4Cl with 250.0 mL of…

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Q: 2. Calculate the pl for the amino acid shown below: GAL H₂N-CH-C pKa = 9.60 CH₂ O OH pKa = 3.65 OH…

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Q: 11. Give examples of the following classes of amino acids: (ch) (a) Two amino acids with basic side…

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Q: What is the calculated value of the cell potential at 298 K for an electrochemical cell with the…

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Q: (g-h) (i-j) (k-1) (m-n) (0) (p) & NH Br (q) CH3- 1. KOH 2. NaNH, NH3 excess CH3OH CI CI +H CH3OH, H+…

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Q: Give synthesis CH3 CH3CCH₂COCCH₂CH3 CH3 CH₂CH₂C=CH

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Q: For the following reactions, indicate whether the entropy of the system increases, decreases, or…

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Q: Consider the following half-reactions: Half-reaction Cl₂(g) + 2e Cu2+ (aq) + 2e™ Cr3+ (aq) + 3e E°…

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Q: For a certain chemical reaction, the standard Gibbs free energy of reaction is -114. kJ. Calculate…

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Q: Propose a synthesis for the molecule. ng

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Q: A student titrates a saturated solution of Ca(OH)₂ with 0.0100 M HCl. A 10.00 mL sample of the…

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Q: Use standard reduction potentials to calculate the standard free energy change in kJ for the…

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Q: alculate the flow rate in ml/hr . order 40meq/l at 10meq/hr in 1000ml in d5w supply 20m

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Q: A standard galvanic cell is constructed in which a Co2+ | Co half cell acts as the cathode. Which of…

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Q: What is the calculated value of the cell potential at 298K for an electrochemical cell with the…

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Q: The molecule shown is a(n) CH2 H2N-C-COOH H fatty acid carbohydrate O amino acid lipid

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Q: Consider the heating curve for water. Which of the following could be represented by a horizontal…

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States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.