Consider a hypothetical case in which the charge on a proton is twice that of an electron. Using this hypothetical case, and the fact that atoms maintain a charge of 0, how many protons, neutrons, and electrons would a potassium-40 atom contain? proton(s)

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Q: H NMR 11 10 8. 6. 4 2 ppm Mass Spectra C3H5BRO2 80 100 120 140 160 m/z arbitrary 04 0,2 0.8 90

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Q: Consider the theoretical bases below and use the Kb values provided (at 25 oC) to determine the Ka f...

A: The product of H3O+ and OH- concentration in any solution is always equal to 1*10-14. Acids give H3O...

Q: Twenty-five mL of 0.100 M lactic acid (K, = 1.4 x 104) is titrated with 0.097 M KOH. a) What is the ...

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Q: of nodal planes p

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Q: Step 1: O3 + HO — но2+ 02 Step 2: HO2 + O — но +02 Which species is an intermediate? OH C O HO2 O 03

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Q: Prepared 1 M of HCL in 1000 ml, that density is 1.19 g/cm3 and percentage ?w/w is 37 %, Mwt is 36.5 ...

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Q: e concentration (in M)

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Q: between liquid cyclohexane (C6H12) and oxygen gas. Another product of this combination is water as s...

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Q: How many ions metals are measuring in water alkaline. Four. Three. Six.

A:                                      Answer Metal ions in water alkalinity measure the alkalinity co...

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Q: Which compound has the highest lattice energy A. NaCl B. NaBr C. MgCl2 D. MgBr2

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Q: concentration in n

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Q: Draw Lewis structures for the following free radicals. (a) The ethyl radical, CH3-CH2 (c) The isopro...

A: The drawing for lewis structure of given radicals are pictorially shown below

Q: (Q66) At what temperature (°C) will a solution that contains 70.4 grams of the nonelectrolyte ethyle...

A: Mass of ethylene glycol = 70.4g  Mass of water = 632 g  Boiling point of pure water = 100°C  

Q: Which indicator using in .complexometeric and what the pH Eriochromo red T and pH range is 8-10. O E...

A: Complexometeric titration :- The coloured complex use to indicate the end point. It is the method wh...

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Q: In a container, there are 0.0109 atm of Ar, 0.0142 atm of CO2, 0.193 atm of 02 and 0.666 atm of N2. ...

A: Given: The partial pressure of Ar = 0.0109 atm The partial pressure of CO2 = 0.0142 atm The partial...

Q: Name these organic compounds: structure name CH, 3-methyl-1-butyne CH,- CH – c= CH CH, CH, — сн, — с...

A: The steps to name the given molecules are shown in the next step  

Q: 2mo) - of Hel cl (Akyne) (geme emnal dichlonde)

A: More substituted carbocation is major product as more substituted carbocation is stabilized by +I ef...

Q: Calculate the normality of sulfuric acid has a density of 1.84 g/cm3 and is 95.0% (w/w) H2SO4. Mwt f...

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Q: Consider the following decomposition reaction: 2HI(g) → H2(g) + 12{g) At a particular temperature, t...

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Q: Br HBr ROOR 7.

A: This is an addition reaction in presence of peroxide. This reaction proceeds through free radical me...

Q: For the following reaction, choose the CORRECT statement Co(s) + Fe2+(aq) => Co2+(aq) + Fe(s) wher...

A: Given, Co(s) + Fe2+(aq) => Co2+(aq) + Fe(s) where Co(s) => Co2+(aq) + 2e- &  E°= +0.28V Fe...

Q: At 500°C, and in the presence of a catalyst, steam (water vapour) reacts with carbon to give a mixtu...

A: Given: Steam reacts with carbon to give hydrogen and carbon monoxide. Initial temperature = 500 oC =...

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Q: Alkalinity understand that is. Measure of acidity. Measure of basicity. Measure of nationalize.

A: Acidity is the measurement of hydronium ion in solution. 

Q: The decomposition of hydrogen peroxide is first order in H,02. The rate constant for this reaction a...

A: Given that:  Rate constant(k) = 1.8×10-5 s-1 Initial concentration [A]0 = 0.75 M After time t, conce...

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Q: Write the rate law for e following elementary reaction: 2N,05(g) → 2N,O;(g) + O3(g) Use k, to stand ...

A: Write rate law of the given elementary reaction--

Q: e) OH OH 1. 2.

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Q: (Q73) A solution contains 17.14 grams of magnesium chloride and 708.1 grams of water. What is the va...

A: The vapour pressure of a solvent can be written as,  Psolution = XsolventP°solvent  Where, Psolution...

Q: MCPBA

A: Given, 

Q: Sulfur dioxide and nitrogen dioxide react at 298 K via the reaction SO,(g) + NO, (g) = SO;(g)+NO(g) ...

A: Given,  At equilibrium  moles of SO2 = 0.368mol moles of NO2 = 0.368 mol Moles of SO3 = 0.762 mol mo...

Q: 4. Designate R or S of the followings. C3H7 Br ÇOOH C-H „ĊC2H5 b) HS´ c) H3C- с) Нас—он a) H

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Q: .Alkalinity understand that is Measure of acidity. O Measure of basicity. O Measure of nationalize. ...

A: pH less than 7 means solution is acidic. pH greater than 7 means solution is basic. pH is equal to 7...

Q: 5. The chemical reaction presented below is not balanced. Balance it and calculate and for this reac...

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Q: [Review Topics] [References] arbon-hydrogen bonds exhibit a range of different chemical reactivity t...

A: Given : We have to tell primary , secondary and tertiary C-H bonds

Q: 5. Calculate the pH of a Buffer of Lactic Acid (HC2H502) 0.12M and Potassium Lactate (KC2H502) 0.11M...

A: The concentration of lactic acid, [HC3H5O3] = 0.12 M The concentration of potassium lactate, [KC3H5O...

Q: The role of calcium ions (Ca) in neural signal transmission is to cause the relegs

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Q: It is determined that the equilibrium concentrations of F e3+, SCN- and [F e SCN2+] are 5.00 x 10-4 ...

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Q: (Q67) What is the freezing point of a solution made from 883.6 grams of benzene to which 56.0 grams ...

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Q: [Ar 4s²3d¹⁰4p⁶] a.) What is the name of the element b.) How many electrons does it contain in s orbi...

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Q: A first-order reaction has a rate constant of 1.10 x 10-4 s-1 at 470°C and 5.70 x 10-4 s-1 at 500°C....

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Q: solubility product (Ksp)

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Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.