A system receives 425 J of heat and delivers 425 J of work toits surroundings. What is the change in internal energy of thesystem (in J)?

Q: 26. What combinations of two elements from the list V - Z below are most likely to form an ionic…

A: Ionic bonds are formed between two or more atoms by the transfer of one or more electrons between…

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A: The proposition is used in sentence to make it attractive .

Q: Magnesium burns in air with a dazzling brilliance to produce magnesium oxide: 2 Mg(s) + O2(g) → 2…

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Q: A chemistry graduate student is studying the rate of this reaction: 2N₂O5 (g) → 2N₂O4 (g) + O₂ (g)…

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Q: ided Practice ections: Complete all problems. Ensure your work is shown, and proper units are plied.…

A: Mass of copper (I) sulfide = 24.1 gPressure=10.7 atmT(in °C) = 237°CT (in K)=273.15 + T(in °C)=…

Q: 5. An organic compound containing C, H, and O was analyzed by combustion. 6.237 g of the compound…

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Q: After reading the following scenario, explain and diagram the transfer of energy. You must label the…

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A: ΔHrxn​=−890.5kJ/molExplanation:Given:…

Q: 5. In an ionic compound with formula X₂O, X could represent which element? (A) lithium (C) calcium…

A: 5.  The formula of ionic compound is X2O.       Oxygen has a charge of -2.   The total charge in an…

Q: Based the ionic convention, what is the formal charge of the PPh3 ligand? +2 QUESTION 41 What is the…

A: Formula for calculating formal charge ( Based on ionic convention) :  Formal charge, qF = nv - nnb-…

Q: 1. The rate for the react NH4* (aq) + NO2 (aq) → N2(g) + 2 H2O(1) is given by the equation: rate = k…

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Q: A mixture consisting of only chromium(III) bromide (CrBr3) and aluminum bromide (AlBr3) weighs…

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Q: 18. For the following redox reaction, write out the balanced half reactions, the overall balanced…

A: Redox reaction: Redox reaction is a type of chemical reaction in which the oxidation states of atoms…

Q: 3. How many days should the prescription below last? Dr. Barbara Clemmons 121 West Loop Tacoma, WA…

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Q: 1) Calculate the pH of a solution prepared by dissolving 1.75 g of sodium acetate, CH3COONa, in 78.0…

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Q: A patient is given 0.055 mg of technetium-99m, a radioactive isotope with a half-life of about 6.0…

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Q: 2- Suppose a 0.020 Maqueous solution of sulfuric acid (H₂SO₂) is prepared. Calculate the equilibrium…

A: Given  Concentration of H2SO4 = 0.020 M H2SO4 is a strong acid. Hence ionization of 0.020 M of H2SO4…

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Q: Make a dilution series to get to 1:100. Start with making 1:10 dilution by adding 1mL of sample and…

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Q: CH, - Electrophilic addition a- Proton transfer h- Syl Nucleophilic substitution - Sy2 Nucleophilic…

A: Here two reactants are bicyclo[2.2.1]hept-2-ene and aryl sulfenyl chloride

Q: Athot 45.3°C -70.3°C = -25.0°C Atcold 45.3°C-21.5°C = 23.8°C Part A Calculate the heat capacity of…

A: Q = mCp∆T Where, Q= Heat lost or absorbed by substance m= mass of substance Cp= specific heat…

Q: Increasing the concentration of a product in a system Decreasing the concentration of a product in a…

A: Equilibrium is a state where rate of forward and backward reaction is the same and no net change in…

Q: b. d. CH₂CH₂OH H₂SO4 [1] CH3CH₂O Nat [2] H₂O HBr [1] NaCN [2] H₂O

A: These are the examples of epoxide opening reactions

Q: Write the formula of the conjugate acid of the Brønsted-Lowry base. HBO3²- H2BO3-

A: In this question, we have to write the formula of conjugate acid of the Bronsted-Lowry base HBO32- :

Q: Equations of State (EoS) are functions that relate the variables of a thermodynamics state to one…

A: Given: Pid(V)=RTVPvdw(V)=RTV-b-aV2w=∫ViVfP(V)dV

Q: n order to calibrate a pipet, you obtain the following data:   # of drops mL Trial 1 30 0.72 Trial 2…

A: Pipettes are used to measure liquid samples and transfer from bulk to reaction mixture. Pipettes…

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A: We should have a little knowledge about Bronsted and Arrhenius acid base concepts.

Q: 18) (5 x 10°)(3.5 × 10-) 20) (4.11 × 10°)(8.65 × 10-*) 22) (8.31 × 10-)는 (0.o XI0-)

A: In case of multiplication and division round the answer to the least no. of significant digits given…

Q: Calculate the volume, in milliliters, of a 0.530 M KOH solution that should be added to 4.750 g of…

A: Given,  The mass of HEPES = 4.750 gMolar mass of HEPES = 238.306 g/molMolarity of KOH = 0.530 MpH of…

Q: A 0.15 M solution of HIO2 is being titrated with a 0.15 M solution of NaOH. 20.0 mL of the HIO2 is…

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Q: 1. ( What element has the electron configuration 1s²2s²2p¹? What element has the electron…

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A: This problem is based on Le Chatelier's principle which tells us that when we perturb or disturb the…

Q: In order to calibrate a pipet, you obtain the following data:   # of drops mL Trial 1 30 0.72…

A: Given- Trial number Number of drops mL Trial 1   30 0.72 Trial 2 30 0.77 Trial 3 30…

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Q: Conc. NaOH soln., M (listed on bottle) 0.1 M Part A. Standardization of a sodium hydroxide solution.…

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Q: Sodium hydrogen carbonate (NaHCO,), also known as sodium bicarbonate or "baking soda", can be used…

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Q: Solve the attached problem

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Q: Predict the major product of the following reaction sequence, and show a mechanism for its…

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Q: Part C To normalize this wave function, you must calculate the integral ²da. What is the value of…

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Q: The beaker below BEST represents a(n) ______________. Assume the particles are surrounded by water…

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Q: For the following reaction, 24.7 grams of sulfur dioxide are allowed to react with 9.95 grams of…

A: The equation for the reaction is:  2 SO2 + O2 → 2 SO3

Q: Complete the following structural formula for a neutral molecule by adding H atoms to complete the…

A: To find: The molecular formula of the given structure by adding hydrogen atom

Q: For the compound below please choose the correct set of chair and flipped chair conformations: A 0 D…

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Q: A student conducted a titration in which 15.00 mL of acid was titrated with a sodium hydroxide…

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