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Q: Match each element below with the correct number of valence electrons 1. one 2. two P 3. three 4.…

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Q: number 9, mass number 18, charge of 1- O p: 9; n: 9; e: 12 Op: 9; n: 9; e: 8 Op: 9; n: 9; e: 9 Op:…

A: Given the atomic number of the species = 9  mass number of the species = 18 charge of the species =…

Q: EXERCISE 2: Calculate the pH of a 0.50 M NH3 at 25°C. At 25°C, the base dissociation constant (Kb)…

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Q: temperature k 142.0 °C 6.1 x 10¹1 226.0 °C 3.7 x 10¹2 uming the rate constant obeys the Arrhenius…

A: According to the question, we need to determine the value of Activation energy.

Q: If the actual value is 100 and the measured value is 99 then the percent error is---- O 0.1 O 2% O…

A: We can calculate percent error by following formula percent error=Actual value-Measured vaueactual…

Q: lak 1/1 Determine the correct thermodynamic properties for this reaction: endothermic with As o…

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Q: Draw the electron dot symbol for an oxygen atom. Which statement below BEST describes the…

A: Atomic number of oxygen is 8, so oxygen contain 8 electrons in its ground state. Electronic…

Q: In K 1/1 Determine the correct thermodynamic properties for this reaction: endothermic with As> o…

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Q: Give a clear explanation handwritten answer...give correct answer...1mry at high temperature , how…

A: We need to discuss how 1mry is denatured at high temperature.

Q: 5. Name the following compounds Br Н3С i. 11. H3C OH CH3 SOH CH3

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Q: 3. Solutions of aqueous CaCl, and aqueous CuSO, are mixed in a beaker. a) Write the balanced…

A: a) When aqueous calcium chloride and copper (II) sulfate combine then a solid precipitation of…

Q: 14. Draw the long form electron configuration for chlorine

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Q: A 0.602-g sample of isophthalic acid (C₂H4O₂) is burned in a bomb calorimeter and the temperature…

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Q: Tuture is 220 R. B- The pressure in a vessel containing methane and water at 70°C is 10 atm. At the…

A: Given :  Temperature = 70°C  Pressure = 10 atm  Vapour pressure of water at 70°C = 0.3117 bar…

Q: Question 1: Choose the right answer, besides Justifying your choices 1. A battery cell stores energy…

A: To answer the questions we need to understand what all are asked in it.  1) We are asked to find how…

Q: Carbon tetrachloride (CC14) has a normal boiling point of 75.38 °C, and an enthalpy of vapourization…

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Q: If the concentration of hydrogen ion is 10 mole per liter then the pH of the solution is -(1, 10,…

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Q: Design a buffer that has a pH of 5.61 using one of the weak base/conjugate acid systems shown below.…

A: Here we have to determine the mass of suitable conjugate acid and base required to make 1L of buffer…

Q: Which of the following represent closest packing of spheres? 11 III IV O II + IV OI + IV III+IV | +…

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Q: IR Spectrum (liquid film) 4000 100 80 60 40 20 40 13C NMR Spectrum (50.0 MHz, CDCI, solution) % of…

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Q: Emissions product of gasoline fuel ..............from the exhaust pipe are Co2, MP. Aldehydes,…

A: Carbon monoxide, sulphur dioxide, nitrogen oxides, formaldehyde, benzene, and soot are among the…

Q: 1. A compound has an empirical formula of CH2 O and a molecular mass of 60 amu. What is the…

A: Two questions one regarding molecular formula and second regarding volume of a gas at STP are to be…

Q: Suppose you have cooled 2 moles of an ideal monatomic gas from 400K to 300K whereby the gas lifted…

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Q: Q3/ Synthesis the following compounds using any organic or inorganic reagents : from 4-bromo phenol…

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Q: The structure consisting of a positively charged neutral O True O False of an atom, theoretically

A: The statement of an atom, theoretically consisting of a positively charged neutral is

Q: When you calculate the molality. The number of moles of solution is important. O True O False

A: Given statement : When you calculate the molality the number of moles of solution is important.

Q: * Atoms which form covalent bonds not have any valence electrons. False True

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Q: Upon the test of Cadmium ion, a black precipitate was obtained rather than a yellow precipitate.…

A: In the problem we need to speculate the black precipitate that was obtained instead of yellow upon…

Q: Ammonium perchlorate (NH4CIO4) is the solid rocket fuel used by the U.S. Space Shuttle. It reacts…

A: Recall the dissociation reaction of ammonium perchlorate 2NH4ClO4 -----> N2 + Cl2 + 2O2 + 4H2O…

Q: A cylinder fitted with a frictionless piston contained an ideal gas, with a volume of 23 m³, a…

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Q: Draw the lewis structure for Na2Cl2??

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Q: The structure consisting of a positively charged neutral O True O False of an atom, theoretically

A: Please find your solution below : Atom is smallest unit and basic building block of matter that…

Q: 0.080 m K₂ CO3 Choose versus lowest vapor 0.096m kel pressure & explain

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Q: Q.2 Choose the correct answer 1- A collision avoidance system uses. to detect a vehicle or another…

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Q: 13. Determine the shape of the following molecules and identify what intermolecular forces exist in…

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Q: In the relation, W=JxQ, 1 calorie = 4.18400 joules false true

A: Thermodynamics is branch of chemistry in which we deal with amount of heat evolved or absorbed by…

Q: 22- what is the general name of this compound CH; 3 CH 3 CH -C =C _C -C1 CH 3 Br

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Q7. Perform this calculation to the correct number of significant figures: 78.222 x (12.02 - 11.52)…

A: Question (7) Given that 78.222×12.02-11.52 To solve above problem we must solve first brackets then…

Q: Q16. What is the edge length of a 155-g iron cube? 195 (The density of iron is 7.86 g/cm³, and the…

A: Given: The mass of the iron cube = 155 g The density of iron = 7.86 g/cm3 We have to calculate the…

Q: For the processes the manufacturer tested in March, April, and May, which metals had their levels…

A: From literature, the standard reduction potential of the metals mentioned are as follows,…

Q: * Calculate the Molarity of HNO3 in a solution containing 12.2% HNO3 and the density of it (HNO3) is…

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Q: 20- The pH of (0.2M) of Ca(OH)2 is 0.397 13.302 13.603 0.698

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Q: 1. Write the hybridization of each carbon atom:

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Q: AMMMMMMMME % of base peak 100 80 60 40 8 20 pon 91 2000 1600 v (cm¹) M** 170/172 1200 800 0.0 Mass…

A: Molecular Formula = C7H7Br

Q: 3. Solutions of aqueous CaCl, and aqueous CuSO, are mixed in a beaker. a) Write the balanced…

A: Given: Solutions of aqueous CaCl2 and aqueous CuSO4 are mixed in a beaker. We have to write the…

Q: 4000 100 88892 dadadadadadadad 80 60 IR Spectrum (liquid film) 40 20 % of base peak 3000 40 80 13C…

A: We are given the IR spectrum, mass spectrum, 1H-NMR, and C13-NPR for the molecular formula, C7H7Br,…

Q: Molarity tells us the number of moles of solute in one liter of a solution. O True O False

A: We know that Molarity of a given solution is called referred as Concentration of the solution.  The…

Q: Which of the following safety equipment should be utilized to protect a personnel from directly…

A: The solution is given below -

Q: Q11. An automobile travels 97.2 km on 7.88 L of gasoline. What is the gas mileage for the automobile…

A: I am answering Q11. as you have asked, Given, Distance travel by automobile = 97.2 km Volume of…

Q: Q1/ Complete the following reactions and mentioning name of the reaction? Et NaOH &. d ? H + CH3l 2)…

A: 1) Robinson annulation reaction -             The method uses a ketone and a methyl vinyl ketone to…