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Q: If a substance is radioactive, this means that the nucleus is unstable and will therefore decay by…

A: Given data :

Q: What is the conjugate base in the following reaction: HCI (aq) + H₂O (1) CI (aq) + H3O+ (aq)? O a)…

A: Given -> HCl(aq)  + H2O(l) <-----> Cl-(aq) + H3O+(aq)  -> Conjugate acid is formed when…

Q: Calculate the equilibrium concentration of H₂. Express the molarity to three decimal places.

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Q: Please outline a synthesis for the following compound under the given restrictions and any other…

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Q: Using the standard enthalpies of formation, what is the standard enthalpy of reaction?…

A: According to the question we have a chemical reaction,                CO(g)+H2O(g)⟶CO2(g)+H2(g) The…

Q: (14) DRAW THE FOLLOWING + HI → 1X² + 2 HI→ REACTION MEC pol

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Q: Relative stability of Cl 3° 12° 10 5 니 1 clay ㅁㅁㅁ CI CI

A: The given reaction takes place through radical mechanism. The relative stability of radicals is  30…

Q: → Consider the hypothetical reaction A(g) + 2B(g). A flask is charged with 0.78 atm of pure A, after…

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Q: 3 What is the expected major product of the following reactions? a) b) d) f) 3 HO O₂N. NEG H Br₂…

A: The given problems are based on the electrophilic aromatic substitution reactions of aromatic…

Q: for part b）why do we write AlCl3 at top of the arrow and AlCl4 at the bottom of arrow？？is it any…

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Q: ▾ Part A For the following systems at equilibrium A: 2NOCI(g) B: H₂(g) + I2(g) = 2HI(g) classify…

A: Part A:     Following systems at equilibrium are :    A: 2NOCI(g) <====> 2NO(g) + Cl2(g) Here…

Q: Modes of Radioactive Decay Balancing a nuclear equation in a nuclear reactions we must account for…

A: For the first question, we have to balance the given nuclear reaction. For the second question, we…

Q: 2. What is the concentration of a H₂SO4 solution if 0.100 L of the sulfuric acid sample requires 755…

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Q: Calculate the pH of a solution obtained by mixing 463 mL of 0.18 M nitric acid with 383 mL of 1.9 x…

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Q: Cf+B4n+? Express your answer as a single isotope. Part B ΑΣΦ chemical reaction does not occur for…

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Q: Butanol has the chemical formula C4H9OH.   a)    Show the full electron configuration for C and…

A: Given that, the chemical formula of the butanol is C4H9OH. We have to answer the following…

Q: How many peaks in the C-NMR spectrum?

A: Carbon-13 (C-13) nuclear magnetic resonance (most commonly known as carbon-13 NMR spectroscopy or…

Q: A 25.0 mL solution of HBr is neutralized M Ba(OH)2. What is the concentration of the original HBr…

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Q: 8. How many chirality centers are present in the compound below? A. 0 B. 1 C. 2 D. 3 E. 5 9. Which…

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Q: Hydrogen iodide decomposes according to the equation 2HI(g) H₂(g) + 12(g), for which Kc = 0.0156 at…

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Q: For the reaction: 2 Cu(s) + 12 O₂(g) → Cu₂O(s) AG° = -141 kJ/mol. What is the free energy change…

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Q: a. b. C. Explain why the intensity of the [M+1]* peak for ethane is twice as high as the [M+1]* peak…

A: To explain why [M+1]+ peak for ethane is twice than [M+1]+ peak of methane.      "Since you have…

Q: 6. What volume, in mL, of 0.100 M NaOH is needed to neutralize 25.0 mL of 0.1500 M H₂CO3? NaOH(aq) +…

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Q: A 26.7 mL sample of 0.292 M ethylamine, C₂H5NH2, is titrated with 0.322 M perchloric acid. (1)…

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Q: In one demonstration of this reaction, 42.00  mL of H2 are collected over water at 25°C. Atmospheric…

A: Given : V = 42.00 mL             T = 298 K          P = 748 mmHg  Tip : by using ideal gas equation…

Q: The amount of I−3(aq) in a solution can be determined by titration with a solution containing a…

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Q: Which atomic spectrometer gives the highest atomization efficiency? How it is achieved?

A: Atomic spectroscopy is the study of the electromagnetic radiation absorbed and emitted by atoms.…

Q: O Br N O

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Q: Mass number 238 236 234 232 230 228 226 224 222 220 218 216 214 212 210 208 206 204 Part A Pó Pb Bi…

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Q: To measure the concentration of an aqueous solution of H₂O2, an analytical chemist adds strong acid…

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Q: A mineral contains 6.6% (w/w) of K20. What weight of this mineral must be taken to obtain a KCIO4…

A: Mass of KClO4 required to precipitate = 0.4100 g  Molar mass of KClO4 = 138.55 g/mol

Q: How many grams of C are in 44.7 g of C6H10S?

A: Mass of 1 mole = molar mass  1 mol AB contain 1 mole A and 1 mole B

Q: The normal freezing point of acetic acid is -2.3 °C, and the Kf is 3.90. If 58.9 g of MgCl is…

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Q: Reaction of trans-2-hexene with a solution of Br2 in CCl4 produces: H Br H Br Br Hil Br H IV Br Hill…

A: Given :- trans-2-hextene + Cl2/CCl4 →  To identify :- product(s) formed in above reaction

Q: 8.18) What is the base form of H3O+?

A: Given : formula of acid. Tip : if H+ is Removed from and acid base will form.

Q: A scuba diver releases a balloon containing 153 L of helium attached to a tray of artifacts at an…

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Q: If you started with only 20 grams of phosphorus-32, about how much would remain after 42.9 days…

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Q: Write a mechanism for the step shown below, using curved arrows to show electron redistribution.…

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Q: Draw the major product of the substitution reaction shown below. Ignore any inorganic byproducts.

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Q: TRUE OR FALSE. EXPLAIN     Buffer is any substances which resist pH change upon addition of an acid…

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Q: What is the fundamental difference between a mixture of elements and a compound? elements in a…

A: An element is made up of same kind of atoms whereas a compound can be formed of two or more kind of…

Q: What is the pH of a solution in which 15 mL of 0.21 M NaOH is added to 25 mL of 0.21 M HCl? pH =

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Q: What is the pH of a 2.05 M solution of NH4CI (Kp of NH3= 1.8 x 10-5)? Your Answer: Answer

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Q: Which structure (or structures) represents (or represent) the enantiomer of the molecule below? OCH3…

A: Definition of enantiomer: An enantiomer is one of two stereoisomers that are non superimposable…

Q: Which C-H bond has the lowest bond dissociation energy?

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Q: How do I balance the equations:  C3H5(NO3)3 ----> CO2+  H2O+ N2+ O2  HCN+ O2 ---> N2+ CO2+ H2O

A: We have to balanced the given equation which are (1)  C3H5(NO3)  => CO2 + H2O + N2 + O2 (2) HCN +…

Q: What is the pH of a 0.810 M solution of Ca(NO₂)2 (Ka of HNO₂ is 4.5 x 10-4)?

A: Here first we need to calculate the molarity of NO2- which is conjugate base of HNO2 from given…

Q: You are given the balanced chemical reaction: C4H8(g) + 6 O2(g) 4 CO2(g) + 4H₂O(g). If 0.3218 moles…

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Q: Using general trends, predict the stability of the following nuclei. Drag the appropriate items to…

A: To check the stable or unstable nuclei, we would calculate the number or protons and neutrons in…

Q: 23. Consider the mass spectrum of hexane. Relative Intensity 100 80 8 40 20 a. b. C. 10 MS-NW-5505…

A: Since you have asked a multiple sub-part question, we will solve first 3 sub-parts for you. For…

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.