How are elements heavier than helium formed in the stars, particularly until iron?  How are elements heavier than helium formed in the stars, particularly until iron?

Q: In the Molecular Orbital diagram for C₂ (negative one charge) ion how many electrons are in sigma…

A: Given -> C2- -> Atomic number of C = 6  -> When negative charge increases it means electron…

Q: nisd.net/common-asses NaCl and SiO₂ Type of Matter: Property: Technique: SiO₂ Type of Matter: Fe…

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Q: is coke ( softdrink) inorganic compound?

A: Inorganic compounds are defined as compounds with lack of carbon and hydrogen bonding compounds or…

Q: Q/ Give the IUPAC name for each ofthe following polymers? -C3H₂-CH CH-NC-) (-CI-CH₂CH(COOH)-)

A: Here given polymers are contains functional groups NC and COOH.

Q: Show the complete mechanism using Curved Arrow Formalism for the reaction of the compound shown…

A: INTRODUCTION: p-chlorobenzaldehyde reacts with EtOH and HCl to give an acetal.

Q: Decomposition Reactions Carbon Reduction Reactions O 2 Ag₂0(s)→ 4 Ag(s) + O₂(g) O2 MgO(s) → 2 Mg(s)…

A: Given:  Ellingham diagram of different metals with tabular data of enthalpy and entropy.

Q: Nernst Equation 2.) Example: Calculate the cell voltage if the concentration of NaF and KCI were…

A: 2. Recall the given cell representation,                      Pb s | PbF2 s | F- aq || Cl- aq |…

Q: Which of the following compounds cannot be used, even theoretically, in the :preparation of…

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Q: What are the functional groups and metabolic I pathway for the Nabumetone (with name of phase I…

A: FUNCTIONAL GROUP AND METABOLIC I PATHWAY FOR THE NABUMETONE

Q: 9. What is the relationship between the following molecules? (A) (B) (C) (D) (E) Enantiomers…

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Q: Consider a series of reactions having the following energy profiles: 25 kJ/mol KAN -15 kJ/mol Energy…

A: Given Energy profiles:

Q: stion 2 The reagent which converts a carbonyl group of a ketone into a e OCH3CH2CH2NHCH3; H3O+ O…

A: -> Carbonyl compound has electrophilic center which can give nucleophilic addition reaction to…

Q: The amount of ethylene resulting from the thermal solution of butane is twice the amount resulting…

A: Two questions based on general chemistry that are to be accomplished.

Q: how can we clasify cooking oil is it organic or inorganic compound

A: Organic compounds are large class of chemical compounds in which one or more atoms of carbon are…

Q: The Density of a gas was measured at 1.50 atm and 27°C and found to be 1.95 g/L. Calculate the molar…

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Q: Liquid hydrogen peroxide, an oxidizing agent in many rocket fuel mixtures, releases oxygen gas on…

A: Hydrogen peroxide decomposes into water and oxygen. The equation for the balanced chemical reaction…

Q: Explain the differences between saturated and unsaturated hydrocarbons. (In few words)

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Q: 18. At constant pressure, 10L of a gas at 400K are expanded to 20L. The final temperature of the gas…

A: Given,  18. The temperature, when 10 L of a gas at 400K expanded to 20 L at constant pressure is:…

Q: Pls help ASAP.

A: Concept:  We have rate expression having the concentration of each reactant with order as their…

Q: 1. Ten milliliters of ethanol (density=0.789 g/mL) is added to sufficient amount of water to produce…

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Q: What is the de Broglie wavelength for an electron in a hydrogen atom in the orbit wit n=3? Group of…

A: Given here an electron is present in orbit number 3 in hydrogen atom.we are asked to calculate the…

Q: What do hydrocarbons contain? Name some sources of hydro. carbons.

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Q: 0.375 g of a monoprotic acid (MW = 245 g/mol) is dissolved in water to produce 25.0 mL of a solution…

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Q: Which of the following sets of quantum numbers are not allowed? O n=-2, 1-0, ml -0, ms-1/2 O n-3,…

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Q: An analytical chemist is titrating 133.0 mL of a 0.2700 M solution of piperidine (C,H, NH) with a…

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Q: The pH of an aqueous solution of 0.542 M triethylamine (a weak base with the formula (C₂H5)3N) is

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Q: how can we clasify KEROSENE is it organic or inorganic compound?

A: Types of compound: Organic compounds: In all the living things organic compounds are found. It…

Q: 2. A reaction has an activation energy of 225,0 kJ/mol. By what factor will the rate constant, k,…

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Q: NH₂ OMe (i) PhCHO, cat. H+ (ii) BF3.OEt₂ SiMe3 Ph HN OMe

A: Steps of the organic transformation are given below:

Q: Provide STEP by STEP details  correct Explanation.  Question : iron has a face centered cubic unit…

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Q: 72. A student prepares phosphorous acid, H3PO3, by reacting solid phos- phorus triiodide with water.…

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Q: pH Titration Curve for titrating 24.1 mL of Aqueous Lithium hydroxide with 0.745 mol/L Hydrobromic…

A: In the given question we have to identify the equivalence point , pH and indicator used in the given…

Q: C4H6O3), which has a molar mass of 102.04 g/mol. The density of acetic anhydride is 1.082 g/mL.…

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Q: A Chemistry 20 student uses a thermometer and a hot plate and measures the boiling point of ethyl…

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Q: Question 4 Which procedure accurately describes preparing a 1000. mL solution of calcium chloride…

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Q: What is E°cell for the following reaction? Zn(s) + 2 H+ (aq) à Zn2+  (aq)  + H2 (g)

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Q: The solubility of CaF2 is 0.00021 mole per liter. What is the solubility product constant for CaF2?…

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Q: A weak acid has K₂ = 1.00 x 103. If [HA] = 1.00 M what must be [A] for the pH to be 2.7? 0.50 M 2.0…

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Q: Q/ Give the IUPAC name for each ofthe following polymers? H(-OCHOCO-CH,CH,CO-)OH H (-HN-C3H₂NH…

A: Condensation polymers are formed by when monomers react with each other to form larger units by…

Q: Table B: Reaction Rate of Na S O/HCI A-Volume of 0.15 M Na S,O, (aq) used / ml. 50.0 40.0 30.0…

A: Concentration of solution usually tells about the quantity of solute added in solvent to form…

Q: We heat a 25-g sample of metal from 10 °C to 85 °C, 1082 J of energy is added to it by heat.…

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Q: A sample solution contains two unknown ions. A student did a series of tests on the solution, in the…

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Q: X in the following equation is a value of * COOH -6---6- + Your answer OH true + ? CO₂ One of the…

A: Given: 6 PhCOOH + X O2 -----> ? PhOH + ? CO2

Q: Determine E cell reactions are: Pb²+(aq) + 2 e* Zn²+ (aq) + 2 e for the reaction: Pb2+ (aq) + Zn(s)…

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Q: MISSED THIS? Read Section 20.6 (Pages 917-922) A voltaic cell consists of a Zn/Zn²+ (E° = -0.76 V)…

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Q: suppose a current of 0.510 A flows through a copper wire for 281. seconds, calculate how many moles…

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Q: Question: please provide reagents and products. give synthesis for one PET PROJECT 3 OCH3 CH₁203…

A: Organic transformation:

Q: Indicate the configuration (R or S) around the chiral carbon(s) in the following compound.…

A: RS nomenclature: The RS nomenclature is an important nomenclature system for denoting the…

Q: Part 2 Pour the six liquids (from part 1) into the same graduated cylinder (to the left). The…

A: Concept based on the density of different liquids.

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-…

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.