calculate the frequency of a photon emitted by a hydrogen atom when an electron makes a transition from the state with n=5 to n=2.

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Q: Give the IUPAC name of the following structures.

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Q: . Balance each of the following equations using the change-in- oxidation-number method: agh gt olle ...

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Q: What quantity (moles) of  must be added to 1.0 L of 1.7 M  to produce a solution buffered at pH = pK...

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Q: What is the enthalpy for the combustion of N2 to NO2? Calculate AH for the process: N2(g) + 202(g) →...

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Q: A chemist is studying the following equilibirum, which has the given equilibrium constant at a certa...

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Q: Does a reaction occur when aqueous solutions of silver(I) sulfate and calcium nitrate are combined?

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Q: Using tables 23.3-23.7, predict the shift for the carbon indicated by the arrow. Report your answer ...

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Q: Determine the pH at the equivalence (stoichiometric) point in the titration of 47.52 mL of 0.165 M C...

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Q: Which indicator would be the best to use for a titration between 0.30 M (CH3)2NH with 0.30 M HI? You...

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Q: PIH Resources Lx Give Up? troductory Chemistry Macm evell SECOND EDITION ch of the Lewis structures ...

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Q: Calculate the kinetic energy of a 152. mg raindrop moving at a speed of 8.2 Round your answer to 2 s...

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Q: Write the chemical equation for the solution of calcium hydroxide in water.

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Q: During an assay of paracetamol by UV an analyst prepares a series of calibration solutions containin...

A: Mass of paracetamol = 140.1mg Volume of solution  =200mL Concentration = 140.1mg/200mL              ...

Q: Show your solutions n1= 5.38mol V1= 89.3L V2= 92.3L Find n2

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Q: 1. Five moles of a diatomic ideal gas are allowed to expand isothermally at 25°C from 0.020 to 0.100...

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Q: Br. HO

A: given 

Q: OH N. H

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Q: Calculate the pH during the titration of 20.0 mL of 0.25 M HBr(aq) with 0.25 M LiOH after 20.51 mL o...

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Q: Consider a solution composed of toluene (C7H8) and benzene (C6H6) with volumes 50 mL and 125 mL, res...

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Q: The correct answer is D, can you please draw the mechanism for the set of reactions shown? А. 1. H,о...

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Q: 11. It has been determined that the body can generate 5500 kJ of energy during one hour of strenuous...

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Q: I) m)

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Q: 4. K;Cr20, + KI + H;PO4 5. K,Cr,0, + FeSo, + H,SO, I2 + CrPO, + KPO4 + H;0 Cr,(SO.), + Fe;(SO,); + K...

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Q: C3H8 + 5 O2-→ 3 CO2 + 4 H20 If 358.05 grams of CO2 are produced, how many moles of O2 were reacted?

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Q: A major component of gasoline is octane C3H18 When octane is burned in air, it chemically reacts wit...

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Q: 1. Which of the following compounds is a non-electrolyte when dissolved in water? a. sodium chloride...

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Q: Green plants use light from the Sun to drive photosynthesis. Photosynthesis is a chemical reaction i...

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Q: 7. A gas expands against a variable opposing pressure given by p = 10/V atm; where V is the volume o...

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Q: If 27.1 grams of bromine and 12.0 grams of chlorine combine to form bromine monochloride, how many g...

A: Given :-  Bromine + chlorine ---> bromine monochloride  Mass of Br2 = 27.1 g  Mass of Cl2 = 12.0 ...

Q: The number of protons in an atom's nucleus defines the element.  True  False

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Q: Find n in mol. Show your solutions. P = 3.45 atm V = 93.38L T = 95.53 °C

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Q: Use a table of Standard Reduction Potentials to predict if a reaction will occur between Ag metal an...

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Q: 1. What is the effect on the computed molarity of KMNO4 if you stop titrating when the titrate solut...

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Q: Explain stereisomerism exist in atarax

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Q: Calculate the pH during the titration of 30.00 mL of 0.1000 M HCOOH(aq) with 0.1000 M NaOH(aq) after...

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Q: The compound nickel(II) chloride is a strong electrolyte. Write the reaction when solid nickel(II) c...

A: Strong electrolytes dissociates completely into it ions when put in the polar solvent. 

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Q: Ammonia (NH,) chemically reacts with oxygen gas (0,) to produce nitric oxide (NO) and water (H,0). W...

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Q: 3/5 Understanding the definitions of heat and work A mixture of gaseous reactants is put into a cyli...

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Atomic Structure

The basic structure of an atom is defined as the component-level of atomic structure of an atom. Precisely speaking an atom consists of three major subatomic particles which are protons, neutrons, and electrons. Many theories have been stated for explaining the structure of an atom.

Shape of the D Orbital

Shapes of orbitals are an approximate representation of boundaries in space for finding electrons occupied in that respective orbital. D orbitals are known to have a clover leaf shape or dumbbell inside where electrons can be found.