What is the mass number of an atom of calcium that has 21 neutrons?

Q: Draw the structure of oleic acid (cis-9-octadecenoic acid), CH, (CH₂),CH-CH(CH₂),COOH. Show all…

A: Oleic acid is a fatty acid. Its chemical name is cis-9-octadecanoic acid. The structure of this…

Q: 1. Which of the following is not a component of a nucleic acid? a. phosphate group b. Amino acid…

A: Nucleic acid is a polymer of nucleotides which stores genetic information .  Note : I am liable to…

Q: Predict the product of the two polymerization reactions. F F f F F H₂O₂ H H H CH3 H₂O₂

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Q: Based on the indicated electronegativity (EN), arrange the following (EN= Be: 1.5, Mg: 1.2, F: 4.0,…

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Q: Caffeine, a molecule found in coffee, tea, and certain soft drinks, contains C, H, O, and N.…

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Q: Question 25 The correct order of increasing strength of adsorption is Alkanes >> Esters >> Ketones…

A: Mixture is formed by mixing different substances physically.

Q: ? OH CH₂OH H PCC oxidation HO.

A: There are some oxidizing agents which oxidizes completely and some oxidizes mildly.  So the product…

Q: If I want to keep a total mass of 17 grams (glycerin) and I have 2 additives of 0.3 grams how much…

A: solutions- This is the addition reaction.

Q: you have two solutions. a and b. both have the same initial ph and volume (50ml). to each, you add…

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Q: Canvas Ā Question 50 The spheres below represent Li, Be, B, and F (not necessarily in that order).…

A: Atom is made up of protons , neutrons and electrons.Nucleus of an atom consist of protons and…

Q: A reaction follows the given chemical equation. The reaction rates at different concentrations of A…

A: Given A (g) + 2B (g) →2Z (g) Rate = k[A]a [B]b Where power a and b are coefficients of order of [A]…

Q: Volume of water in cylinder 21.6 mL Mass of empty beaker 75.360 g Mass of beaker with water 97.315 g…

A: Volume of water in cylinder 21.6 mLMass of empty beaker 75.360 gMass of beaker with water 97.315…

Q: What do you get when you use HI on this chemical?

A: In this question, we will draw the structure of the final products after reaction between Ether (…

Q: A 45.15 mL sample of phosphoric acid required 215mL of 1.000 M sodium hydroxide to reach the…

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Q: Give the name/s only (structures not required) of the product for the reaction of (i) A and (ii) B…

A: As per the guidelines I am allowed to answer first three question at a time. Already, 1-4 are…

Q: + :0, tỖt OH Apply Mechanism Hint Solution 4 remaining step(s) can be solved

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Q: Calculate the final pressure of a sample of water vapor that expands reversibly and adiabatically…

A: I have given the answer in the explanation section. Hope you will understand that.

Q: The order of intermolecular interactions from strongest to weakest is: Charge-charge, dipole-induced…

A: The above molecular interactions are ordered are as follow.

Q: Write extensively on effect of temperature on atomic spectroscopy

A: Spectroscopy can be defined as branch of science that deals with study of structures of molecules…

Q: 125.0 g H₂O (g), initially at 100.0 C, is cooled to -15.0 C. Given the information below, how many…

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Q: Question 5 Arrange the following compounds in order of their increasing adsorption tendencies. O O…

A: Column Chromatography is a technique which is used to purify compounds depending on their polarity.…

Q: Illinois Central College CHEMISTRY 130 Laboratory Section: Name SHOW YOUR WORK PRELAB: Exp.7…

A: Given,  The mass of CO2 = 22.0 g.  The total pressure of gas collected over water at 35 °C = 790…

Q: Calculate the wavelength of light associated with the transition from n=1 to n-3 in the hydrogen…

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Q: Which of the following regarding disulfide bonds is/are true? Disulfide bonds are the most common…

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Q: 11. After balancing the following redox equation Fe+2+ MnO4 → Mn¹2+ Fe +3, no. of moles of ferric…

A: The answer to the following question is-

Q: Describe the structure, bonding, and properties of this organic functional group. Identify the type…

A: A question based on general chemistry that is to be accomplished.

Q: 1. A crude oil contains 4% asphaltene by weight. The molecular weight of asphaltene and oil are 1000…

A: Given, Crude oil has 4% asphaltene by weight.

Q: Which of the following quantum numbers describes the shape of an orbital? O Schrödinger quantum…

A: There are 4 different quantum numbers to describe the various aspects of an electron like position,…

Q: The equilibrium constant, K, for the following reaction is 3.52x10-² at 528 K. PCI5(9) PC13 (9) +…

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Q: What is the formula for the area of a circle?

A: Area of a circle is given by-

Q: H₂N The structure shown here could be at which of the following pH values? MacBook Air A) 1 B) 4 C)…

A: Note : There is free lone pair of electron present on the nitrogen.

Q: For the redox reaction given below complete the following: Cr2O7-2+ H+ +FeCl2→ Cr+3 + FeCl3 + H2O…

A: Redox reaction : The reaction in which oxidation and reduction takes place simultaneously is called…

Q: 2. The percent ionization of an acid is defined as the amount ionized divided by the initial…

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Q: A sample of gas occupies 100cm3 at 0 degrees C and 1 bar pressure. (a) What is its volume at 50…

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Q: Predict the type of reaction (if any) that occurs between each of the following substances. Write…

A: Combustion reaction: The combustion reaction of hydrocarbon and it's derivative with oxygen result…

Q: Explain the purpose of the collision cell in interface between inductively coupled plasma and mass…

A: ICP-MS (inductively coupled plasma-mass-spectrometry) is a technique to determine low-concentrations…

Q: Which of the following is the strongest oxidizing agent. (E ° Fe^+3/Fe^+2 = 0.77, l^2(s) / I^-1…

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Q: In each reaction box, place the best reagent and conditions from the given list. H₂C H₂C OH CH,COO…

A: First step is Tosyl protection

Q: During the titration, 25.0 mL of the 0.0233 M saturated calcium hydroxide solution was titrated with…

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Q: In the industrial chemicals process, many aspects shall be considered in obtaining the targeted…

A: Chemical kinetics determines the rate at which a reaction proceeds. It does not determine the yield…

Q: C A B 2. Consider three beakers labeled A through C. Each has a 0.15 M aqueous solution in it.…

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Q: If the concentration of an aqueous solution was determined to be 1.1 molal, what is the mole…

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Q: What is the pH of 0.15 M acetic acid to 1.00 L of which 2.70 g of sodium acetate NaCH3CO2, has been…

A: Molarity of acid = 0.15 M  Volume of sodium acetate = 1.00 L  Mass of sodium acetate = 2.70 g  Ka of…

Q: Determine the number of chiral center(s) is /are present in the molecule below: a. 3 O b.2 Oc4 O d.5…

A: A chiral center is an atom to which four different atoms or groups of atoms are bonded. So basically…

Q: 4 b. The following system establishes an equilibrium at 545 K NH₂ (8) + H₂S (8) AND > 0 NH₂HS (s)->…

A: 4) Le Chatelier's principle According to the Le Chatelier's principle when a change in concentration…

Q: Round off your final answers in 2 decimal places. A container holds three gasses: oxygen, carbon…

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Q: How many stereoisomer(s) is/are possible in the structure below: OH CI O a. 8 b.6 O c. 4 O d.2 OH

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Q: Question 29 of 36 Classify the amino acid depicted here in the form which it would be found at…

A: Proteins are made up of amino acids.  Amino acids and proteins are building block of protein. Amino…

Q: H₂C. H₂C CH3 Compound 1 Compound 3 CH3 CH3 Apply your understanding of intermolcular forces to…

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Q: Classify and describe the properties of the following nitrogen containing compound. Provide a…

A: For IUPAC naming following steps are required -> First of all identify the longest carbon chain…

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.