the periodic table has been called as periodic because? please choose from choices and explain.

Q: 5. Consider the following reaction and answer the questions which follow. [Zn(H₂O)]²+ + 4 NH3 =…

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Q: At equilibrium, an aqueous solution of formic acid (HCHO₂) has these concentrations: [H+] = 0.0029…

A: The value of equilibrium constant (K) can be calculated using the concentration of species at…

Q: Which compound will be more likely to exist as a hydrated solid? O KCl O CuSO4

A: Some compound when comes in contact with water vapors present in the atmosphere absorbs them into…

Q: A buffered solution contains 2.27 M hydrocyanic acid (Ka = 2.01 × 10-5) and 2.41 M potassium…

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Q: The calibration curve was generated using known concentrations of five solutions of a newly…

A: Introduction A calibration curve, sometimes referred to as a standard curve, is a common technique…

Q: The elementary reaction 2 H₂O(g) 2 H₂(g) + O₂(g) = proceeds at a certain temperature until the…

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Q: Errors of different varieties may arise throughout the course of an experiment. Below, match the…

A: An error can be defined as the difference between the measured value and the true value. There are…

Q: Synthesis: need to provide the likely organic products, keeping in mind regiospecificity and…

A: Organic reactions are those in which organic reactant react to form organic products. There are…

Q: A solution is made by mixing 40.0 mL of ethanol, C₂H,O, and 60.0 mL of water. Assuming ideal…

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Q: what is the species being oxidise and reduced? what is the reducing agent and oxidation agent?

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Q: Try to complete the missing information for these three isotopes using only the data provided.…

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Q: Express the following quantity in standard notation for the given unit. (Do not type the unit into…

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Q: When heated, KClO3 decomposes into KCl and O2. If this reaction produced 52.6 KCl, how many grams of…

A: Potassium chlorate decomposes into potassium chloride and oxygen gas on heating. The equation for…

Q: m/Ind The critical parameters of a gas are Pe=45.6 atm, V-98.7 atmimol and Te-190.6 K. Calcul the…

A: Given : Pc = 45.6 atm              Vc = 98.7 mL/mil              Tc = 190.6 K We know,   Vc = 3b And…

Q: Which of these molecules have chiral center?

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Q: 1. Consider this compound: GH13 cô CH b) How many signals would this compound give in the 'NMR? You…

A: The proton NMR shows different signals for different types of proton (whose environments are…

Q: Anwita is on a geology feild trip and finds a rock that contains 38% of the original potassium-40,…

A: Half life of potassium-40= 1.25×10^9 Initial amount of potassium -40 = 100 gm Final amount of…

Q: You would like to develop a new galvanic cell and decide to use two very toxic electrode materials,…

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Q: A certain gas obeys the van-der-Waals equation with a = 0.50 m6 Pa mol-2. Its volume is found to be…

A: Ideal gas law is the equation which obeys gas law under all conditions of temperature and pressure.

Q: Draw the skeletal (line-bond) structure of [CH3CH2CHCH(O)]- include all lone pairs and charges if…

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Q: Draw lewis structure of TeOCI4 IS2C15^2-

A: The we have to draws Lewis structure of  TeOCl4 IS2Cl52-

Q: Remember that the term "delocalized" refers to electrons that we can "move around" in resonance,…

A: We are given structures with N atom, we need to determine which of these N atom have localized lone…

Q: find absolute and relative standard deviation of this data.

A: Absolute standard deviation is the measure of the deviation of each data point from the mean value.…

Q: 2. What is the structure of the compound which gives rise to this data? Explain your reasoning. NMR…

A: Spectroscopic identification of organic compounds.

Q: CI OH COOCHS OH COOCH3

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Q: Use the following vapor pressure data to answer the questions: A B Liquid C₂H5Br CH3OH Vapor…

A: The vapor pressure can be used to predict the strength of intermolecular forces.  The vapor pressure…

Q: Part A Which of the following carbocations is more stable? Explain. b. a. CH₂ or O (b) is more…

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Q: A student titrated a vinegar sample with 0.44M NaOH titrant. A 5.0mL vinegar sample was mixed with…

A: 5.0 mL vinegar sample was mixed with 50 mL of water in a flask and titrated with 0.44 M NaOH…

Q: Some covalent bonds make compounds miscible with water while other covalent bonds make compounds…

A: The solubility of a compound depends on the like dissolve like rule, that is, a polar solute will…

Q: Draw the Lewis structure of acetone, (CH3)2CO(CH3)2CO.

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Q: Trance 25 26 27 28 29 2 сс 35 · → 4000 3800 3600 3400 3200 3000 2800 2600 2400 2200 100 Compound B…

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Q: Use this diagram to answer the following questions. Suppose a small sample of pure X is held at…

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Q: At 90 °F and 30.0 psi absolute, the specific weight of a certain gas was 0.0877 lb/ft³. Determine…

A: Idea gas equation is a equation which obeys gas laws under all condition of temperature and…

Q: Answer questions a-c about the Bronsted acid-base reaction below using the identifying letters A-D…

A: A Bronsted-Lowry acid is a species that donates a proton(H+), and a Bronsted-Lowry base is a species…

Q: 3. Calculate the wavelength (in m) of each frequency of electromagnetic radiation. a. 4.57 x 105 Hz…

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Q: Calculate the amount of heat needed to boil 109. g of benzene (CH), beginning from a temperature of…

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Q: 5. Consider the reaction, H₂ + 12 → 2HI. The equilibrium constant values have been determined for…

A: According to Van't Hoff equation ln(K2/K1) = (- deltaH0 /R) [1/T2-1/T1] ln (16*10-3 /3.2*10-3) =(-…

Q: When we talk about atomic arrangement, what exactly do we mean?

A: Atomic Arrangement consist of  electrons protons and neutrons which are the basic fundamental  of…

Q: Answer questions a-c about the Bronsted acid-base reaction below using the identifying letters A-D…

A: HA →H+ + A- pKa =- log Ka where Ka = [products][reactants] = [H+][A-][HA] weaker acid have stronger…

Q: Consider a helium atom, He24 , for the below questions. Clearly label your answers for each part. A.…

A: Helium atom has 2 electrons, 2 protons and 2 neutrons The atomic number is 2 and atomic weight is 4.…

Q: In the Spherical Cluster Approximation, a cluster is modeled as a sphere with the volume of the…

A: Answer-d This question is based on extensive properties and as volume is an extensive property…

Q: A calibration curve was created to determine the quantity of protein in a solution. The calibration…

A: Corrected absorbance of any solution is found by deducting the absorbance of the blank solution from…

Q: 29. What ius the O-C-O bond angle in potassium carbonate, K2CO3 a. 60° b.90° c.109.5° d.120°…

A: Bond angle is the angle between the two bonds in the molecule. Bond angle depends upon the…

Q: Both [Ni(CN)5]3- and BrF5 have square pyramidal molecular geometries.  Out of the choices below,…

A: Both [Ni(CN)5]3- and BrF5 have square pyramidal molecular geometries.  but Ni(CN)5]3-  is a…

Q: While completing your research on the speciation of clover in Sacramento County, you isolate an acid…

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Q: A student is asked to make up 100.0 g of a 26 % (w/w) sucrose solution. The students weighted out 26…

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Q: Draw a molecular level picture which illustrates that what happens as the approaching atoms begin to…

A: We have to Draw a molecular level picture which illustrates that what happens as the approaching…

Q: The boiling point of an aqueous solution is 101.69 °C. What is the freezing point? Consult the table…

A: In this question, we will determine the freezing point of aqueous solution.  Given : boiling point…

Q: Determine the mass, in grams, of 0.245 moles of Pb (1 mol of Pb has a mass of 207.2 g).

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Q: The (R, R) isomer of methylphenidate (Ritalin) is a treatment for attention deficit hyperactivity…

A: The (R, R) isomer of methylphenidate (Ritalin) is a treatment for attention deficit hyperactivity…

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.