What is Hantaro Nagaoka contribution atomic theory?

Q: At 250°C an equilibrium mixture of SbCl3(g), Cl2(g), and SbCl5(g) has the partial pressures 0.670 ba...

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Q: This energy diagram shows the allowed energy levels of an electron in a certain atom. (Note: the SI ...

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Q: Which of the following statements is/are true? (Select all that apply) OThe higher the concentration...

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Q: Give the product for the following reactions, by drawing either the condensed structural formula or ...

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Q: At 250°C an equilibrium mixture of SbCl3(g), Cl2(g), and SbCl5(g) has the partial pressures 0.670 ba...

A: Answer: On bringing any change in the reaction parameter at equilibrium if will shift in the directi...

Q: 1. Write the equilibrium constant expressions (K. and K.) for the following reactions: 4NH,(g) + 50,...

A: Please note- As per our company guidelines we are supposed to answer only one question. Kindly repos...

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 480.0 mg sample...

A: Given: Mass of mercury=480.0 mg=0.4800 g Temperature change, ∆T=(48.8+273)-(35.2+273)=13.6 K Heat ne...

Q: According to VSEPR theory , in which fashion will the bonds and lone pairs of electrons be arranged ...

A: Given: The following molecules or ions: 1. ICl3 molecule  2. ClO2- ion    3. AlCl3 molecule  The man...

Q: Compare and contrast addition polymer reactions and condensation polymer reactions. Include the diff...

A: A addition polymer is simple polymer formed simply. This is done if there is no cogeneration of othe...

Q: Question 1 Which of the following is the strongest acid? a. CH3CH3 b. CH3NH2 c. CH3OH d. CH3F a O b ...

A: Ans. Option c. CH3OH

Q: For the reaction: 2X + Y → W, the reaction rate law is R = k [X]2[Y] By what factor does the rate of...

A: For the reaction: 2X + Y → W, The reaction rate law, Rate 1 = k [X]2 [Y]  

Q: What are the ideal van't Hoff factors for the following compounds: * Ba(ОН)z, CoН12О6, КЗРО4, HNO3 ?...

A: The Vant Hoff factor of the above compounds can be calculated as follows

Q: ACCURATE ERRONEOUS IMPOSSIBLE a) 4-ethylhex-2-en-6- yne b) 2-bromo-2- methylpentan-2-ol c) 4-bromo-1...

A: Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts fo...

Q: During an experiment, O.257 mol of H2 and 0.257 mol of I2 were placed into a 1.28 liter vessel where...

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Q: The molar solubility of silver chromate, Ag2CrO4, in water at a certain temperature is 6.9 x 105 M. ...

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Q: At 460 °C, the reaction SO2(g) + NO2(g) NO(g) + SO3(g) has Kc = 85.0. Suppose 0.109 mol of SO2, 0.05...

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Q: 1A

A: Classification of Hydrocarbons :- 

Q: What is the IUPAC name of the following compound? la a. (E)-3-methyl-4-hexene b. (Z)-3-methyl-4-hexe...

A: Answer: c

Q: How will the potentiometric titration curve of EmV over volume dichromate for the redox reaction of ...

A: A question based on redox reaction that is to be accomplished.

Q: why pyrazole is more basic than pyridine?

A: We have to tell why pyrazole is more basic than pyridine. 

Q: Show the degrees of unsaturation of xanthine.

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Q: 3. Quinine, C2,H,N,O,(aq), is responsible for saving thousands of lives during the construction of t...

A: Please find the below attachments.

Q: In a carbonic acid buffer system, the total acid concentration is 0.55 M and the pH is 10.0. Calcula...

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Q: If you continue to lose potency with every cut of lead, what do you do next? Why should that work?

A: Lead compounds are compounds that have the desired pharmacological activity. These compounds have  a...

Q: At a certain temperature, K = 0.18 for the equilibrium PCI3(g) + Cl2(g) - PCI5(g) Suppose a reaction...

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Q: If I have a buffer solution made up of 45.0 mL of 0.500 M sodium acetate (NaCH3COO) and 5.0 mL of 0....

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Q: What is the pH of a 0.0338 M nitric acid, HNO3, solution?

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Q: Determine the bond orders for the speCies A: B2 Bond order: | B: B2 Bond order: shortor bond (A or R...

A: A)                 Atomic number of B = 5 and Number of electrons in B = 5                  Electron...

Q: How to convert umol CH4 m-2 d-1 to mg CH4 m-2 d-1 and vice versa? Thank you.

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Q: Consider the equilibrium system described by the chemical reaction below. A 1.00 L reaction vessel w...

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Q: 238, The isotope of plutonium * Pu is used to make thermoelectric power sources for spacecraft. Supp...

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Q: A chem easures the energy change AH during the following reaction: Cl(g)+H2(9) → 2 HCl(g) AH=-184. k...

A: Given chemical reaction: H2 (g) + Cl2 (g) → 2 HCl (g) ΔH for the reaction= -184. kJ The ΔH=-ve here.

Q: A copper rod was purified by using it as the anode in the electrolysis of a 1.0 M copper II) sulphat...

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Q: 14. A solution of sulfuric acid in water, containing initially 73.13% by weight of H;SO4, is diluted...

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Q: The ?a of a monoprotic weak acid is 0.00439 M . What is the percent ionization of a 0.105 M solution...

A: Given data : Ka of monoprotic weak acid = 0.00439 Concentration of weak acid [HA]o = 0.105 M

Q: 3. Calculate the mass of magnesium sulfate heptahydrate that you will need to add to 25 mL to make a...

A: * To determine the moles of sodium carbonate, provide the molarity of the solution or using the mola...

Q: 1. Calculate the heat evolved when 13.56g of oxygen gas (O2) is used to burn  white phosphorus at st...

A: 1) Given, P4(s) + 5O2(g) → P4O10(s), ΔH = -3013 kJ/mol ∆H is in negative (-) which indicate the rele...

Q: Calculations: 1) Create a buffer solution of pH- 4.00 from 1M acetic acid (HA)and 1 M sodium acetate...

A: Answer: Buffer solution is the type of solution in which if we add small quantity of acid or base, t...

Q: I. TABLE COMPLETION: Complete the table below by supplying the correct answer. ELEMENT PERIOD ORBITA...

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Q: The IPUAC name for the following compound is (be sure to indicate stereochemistry, where appropriate...

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Q: References to access important values if needed for this question. In the laboratory, a student dilu...

A: Please find your solution below : Molarity of a solution is the measure of its concentration. It is ...

Q: Give the product for the following reactions, by drawing either the condensed structural formula or ...

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Q: At 773 °C, a mixture of CO(g), H2(g), and CH3OH(g) was allowed to come to equilibrium. The concentra...

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Q: more energy. Can someone explain please

A: The product which requires less activation energy. i.e. rate of reaction is fast.Kinetically control...

Q: Which sets of curved arrows accounts for the protonation of propene with HI? 1 2 а. 1 b. 2 С. 3 d. 4...

A: While drawing reaction mechanism, we represent the movement of electron through an arrow, with the t...

Q: Question 2 Rank the following carbon atoms in the order of increasing deshielding. HO: A C Most desh...

A: Different signals obtained in 1HNMR are due to different chemical shift (ppm) for respective proton....

Q: mis energy diagram shows the allowed energy levels of an electron in a certain atom or molecule: A B...

A: The lowest energy State is the ground state. All the other energy states other than ground state are...

Q: I make a buffer solution from of 5.0 mL of 0.500 M sodium acetate (NaCH3COO) and 45.0 mL of 0.500 M ...

A: Given,  [CH3COOH] = 0.500 M  Volume of CH3COOH = 45.0 mL  [CH3COONa] = 0.500 M  Volume of CH3COONa =...

Q: 2. A solution may contain any of the three group I cations. A white precipitate is formed upon the a...

A: SOLUTION: The most important cations in 1st group are Ag+, Hg2+2, and Pb2+. The solution may contain...

Q: formula Binary? Covalent or Polyatomic ion? Cation variable charge? What? Yes, Gold(II) Name ionic o...

A: Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts fo...

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.