For the isotope 815e2- _protons neutrons electrons there are is the mass number is the atomic number.

Q: Consider the galvanic cell based on the following half-reactions. Ag+ + e → Ag Cd2+ + 2 e Cd (a)…

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Q: What are the products in the molecular equation of the following double displacement reaction? 1)…

A: Displacement reaction is the reaction in which one element is replaced by another.

Q: What is the internal energy (in J) of 5.50 mol of an ideal monatomic gas at 201°C? J

A: Given: Monoatomic gas number of moles, n = 5.50 moles Temperature, T = 201°C = 474.15K

Q: #3. A torsion prescription balance has a sensitivity requirement of 4 mg. Explain how you would…

A: Aliquot methods of weighing;  weight out more drug than we need .  dilute with an inert substance…

Q: The molecular weight of two components A and B of a gas mixture are 24 and 28 respectively. The…

A: According to the question we have two components A and B. The information about the two components…

Q: Calcium hydroxide will precipitate from solution by the following equilibrium: 2+ Ca²+ (aq) +…

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Q: What is the pH of a 0.05 M sodium benzoate solution? K (C7H5O₂) = 1.5 x 10-10

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Q: Consider the reaction: CO(g) + H₂O(l) → CO₂(g) + H₂(9) - Using standard thermodynamic data at 298 K,…

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Q: The following volumes of a solution containing 1.10 ppm Zn2+ were pipetted into separatory funnels…

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Q: A solid piece of aluminium is reacted with hydrochloric acid. How many moles of aluminium are…

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Q: Ethanol (C₂H6O) burns in air C₂H6O(1) +O2(g) → CO2(g) + H₂O (1) Balance the equation and determine…

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Q: (3) Write a balanced nuclear equation for the beta decay of each of the following: 44 a 19 20 b. 0…

A: Nuclear reaction: The given reaction is a nuclear reaction. In the nuclear reaction, one nuclide is…

Q: Calculate the change in entropy of 1.904 kg of lead when it cools from 500 °C to 143.30 °C. = 26.44…

A: Given -> Weight (w) = 1.904 Kg = 1.904 × 1000 gram = 1904 g T1 = 500°C = 500 + 273 = 773 K T2 =…

Q: you are given 4 solutions: A. 15g of glucose in 500mL of water B. 600mL of 4% fructose  C. 0.9L…

A: As per the rules, only the first three sub-parts can be answered

Q: What is the major neutral organic product for the following transformation? ов 1. LDA 2. зе за н ОН…

A: In this question we have to tell the major neutral organic product of the reaction.

Q: A student performs the Electrochemistry, and obtains the following data: [Cu²+], M Potential, V 0.1…

A: #1:  The unbalanced redox reaction is: Cu(s) + Ag+(aq) → Cu2+(aq) + Ag(s)

Q: 30. The active ingredient in some antiperspirants is aluminum chlorohy- drate, Al₂(OH), Cl. Analysis…

A: Given - mass of sample of antiperspirant= 2.000g             mass of aluminum = 0.334 g

Q: Solutions of lead nitrate and potassium iodide are mixed together.  Calculate the value of Q for the…

A: Lead nitrate, Pb(NO3)2(aq) is completely dissociated in water to give Pb2+(aq) and 2 NO3-(aq). Hence…

Q: The following equilibrium is established in a closed container: C(s) + O2(g) CO₂(g) AH = -393 kJ =…

A: Given reaction is :  C (s) + O2 (g) <-----------> CO2 (g) Standard change in enthalpy of the…

Q: 4- How many proton signals appear in the 1H NMR spectrum of vinyl chloride? a) three signs b) two…

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Q: Would you expect F₂ to be soluble in CBr4 or not? FULLY explain your answer. Edit Format Table

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Q: A balloon inflated with one breath of air has a volume of 1.7 L. At the same temperature and…

A: Initial volume (V1) = 1.7 L  Initial moles = 1 mole  Final moles = 1+2 = 3 mole

Q: Large amounts of titanium metal are refined by reacting titanium(III) chloride solution with…

A: We will solve this Problem in the following step ; First we will write balanced chemical reaction…

Q: What is the major product of this reaction? HO D C A H B (A) None of these OCH3 OCH 3 H NaBH4 MeOH…

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Q: OH 1) PBr3 2²5 - A B D 2) N=N=N K+ 3) LAH followed by H₂O V=N=N© N=N=10 C NH₂ NH₂

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Q: The property that describes the gradual mixing of two gases is_ cohesion effusion surface tension O…

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Q: A student sets up two reactions. Reaction 1 uses 0.240 mol/L of reactant, and Reaction 2 uses 0.400…

A: Chemical kinetics is branch of chemistry in which we deal with speed at which rate of reaction…

Q: Provide the product of the following reaction, by writing the nume O Br HOCH₂CH₂OH H₂SO4 Mg.

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Q: Which of the following is true about an exothermic process? An exothermic process feels hot to touch…

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Q: 2) How many nodes, other than the node coincident with the molecular plane, are present in the 3 of…

A: Annulene: Annulenes are monocyclic hydrocarbons that contain the maximum number conjugated double…

Q: The engineer is extruding a polymer with the following characteristics: Specific volume, V = 10-6…

A: Polymer extrusion is a method where molten polymer is converted into components of fixed cross…

Q: The change in enthalpy of reaction with temperature is described by the enthalpy of the substance…

A: The change in enthalphy with temperature is defined as heat capacity at constant temperature.It is…

Q: A student titrates a saturated solution of Ca(OH)2 with 0.0100 M HCl. If a 10.00 mL sample of the…

A: An acid–base titration is a quantitative method used to  determine the concentration of an acid or…

Q: How would the series of figures change in the presence of a catalyst? Would there be different…

A: Given:

Q: What is one quantitative fact about the element of Sulfur with proper significant digits and units?

A: Please find your solution below : An element in chemistry is defined as a substance which cannot be…

Q: At what temperature is a reaction spontaneous if it has; ΔH = +71 kJ/mol and ΔS = +167.2 J/Kmol.…

A: We have to calculate the temperature for which the reaction will be spontaneous

Q: Use a sheet of paper to answer the following question. Take a picture of your answers and attach to…

A: In this question, we have to synthesized the given carbonyl products a) and b) by using enamine…

Q: To make 10 moles of carbon monoxide by partial burning of methane, we need. O 4 moles of 02 O 6…

A: As per our guidelines, we can solve only one question at a time.Please post other question as next…

Q: The Solubility Product Constant for calcium chromate is 7.1 x 10-4. The maximum amount of calcium…

A: The solution has been provided.

Q: If you made a battery of Zn/Zn° and Cu /Cu and you have them both in 6.5M solutions that are 1…

A: Half cell reactions ;  oxidation : Zn --------> Zn2+ (aq) + 2e- Reduction : Cu2+ (aq) + 2e-…

Q: 30. The active ingredient in some antiperspirants is aluminum chlorohy- drate, Al₂(OH),Cl. Analysis…

A: To calculate percent by mass , we need 5o calculate the mass of aluminum chlorohydrate.  For this we…

Q: Use the References to access important values if needed for this question. The molarity of an…

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Q: ΤΑ B E D & V F G H

A: Given -> At which points does the graph have a positive Y value?

Q: In this exercise, we instead consider a form of chemosynthesis. Chemosynthesis is for instance used…

A: The given chemical reaction is a chemosynthesis reaction  with sulphur.

Q: [References] What is the molar hydronium ion concentration in solutions with each of the following…

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Q: Predict the sign of the entropy change, AS, for the following processes. Explain the reason for each…

A: Entropy is a thermodynamic quantity, it measures the randomness or disorderness of a molecule or…

Q: answer the following for the preperat of ibuprofen. AICI₂ H COH H. HỌ heat Ibuprofen 1) LIAIH 2)…

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Q: When 100mL of water at 60°C is added to 100mL of water at 15°C what is the expected final…

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Q: When the following equation is rewritten to solve for T2, the numerator is equal to: P₁ V₁ Ti = P2.…

A: The Equation is solved as follows .

Q: Consider the reaction in the lead-acid cell      PB(s) + PbO2(s) + 2H2SO4(aq)  2PbSO4(aq) + 2H2O(l)…

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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.