2) The shells of an atom contain what? a. Negatively charged electrons b. Positively charged electrons c. Neutrally charged electrons d. Positively charged protons and neutrons

Q: 1. Write the reaction and identify the daughter nuclide in the following reactions: a. 21Pb…

A: (a) The daughter nuclide formed in beta decay reaction has the atomic number (Z+1) where Z is the…

Q: Predict whether AS for each reaction would be greater than zero, less than zero, or too close to…

A: Entropy is a measure of randomness , more is the randomness , more is the entropy.

Q: Why was it necessary to make sure that some solid was present in the main solution before taking the…

A: Solubility product (Ksp) is a constant that describes the equilibrium between a sparingly soluble…

Q: 2. If 50. mL of 0.00015 M CaCl₂ are mixed with 25. mL of 0.0034 M NaF will a precipitate form? The…

A: we have to determine if a precipitate will be formed or not

Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. He carefully weighs…

A: The reaction of oxalic acid and NaOH is H2C2O4 +2NaOH →Na2C2O4 + 2H2O

Q: The following reaction can be used to convert carbon dioxide to oxygen gas. 4 KO₂ (s) + 2 CO₂(g) → 2…

A: Mass of KO2 = 0.860 g Mass of O2 produced = ?

Q: Consider the following equilibrium: 2NH, (g) N₂(g) + 3H₂(g) AG-34. kJ Now suppose a reaction vessel…

A: Given reaction is the formation reaction of Ammonia and we have to find out the direction of…

Q: 3. Given values: Substance: silver (Ag) specific heat capacity (c): 0.233 J/(g.°C) amount (m): 847.4…

A: mass of silver , m = 847.4 gsp. heat of silver , C = 0.233 Jg°CChange in temperature , ∆T = +510.3°C

Q: A 0.815 g sample of aspirin prepared in the laboratory is dissolved in 95% ethanol, diluted with…

A: Mass of aspirin = 0.815 g  Volume of NaOH = 28.5 mL = 0.0285 L Molarity of NaOH = 0.135 M = 0.135…

Q: Reaktio C 1 ekv. HCI Q.Q..& a

A:

Q: For the three molecules whose structures are given.below. C least reaclive one in SN1 reaclions…

A: This question is a base on reactivity of alkyl halide in sn1 path

Q: Consider the reaction: 2H₂(g) + O₂(g) → 2H₂O(g) Using standard absolute entropies at 298 K,…

A: Reaction : 2 H2(g) + O2(g) →2 H2O(g)

Q: The nucleophilic reaction between phenyl a-disulfone and hydrazine occurs according to the following…

A:

Q: In which of the following species does sulfur have the lowest oxidation number? A) S²- B) S8 C)…

A: Since, Charge on H= +1 Charge on O = -2 And  one thing keep in mind that, Sum of oxidation number of…

Q: 2. Calculate AGº and Kc for the following reaction at 298K: Br₂(1) + 21 (aq) (R:8.314J/mol.K, 96500…

A: The negative value of ∆G0 describes that the reaction is spontaneous towards forward direction.

Q: Scientific question: how does the choice of chemical ingredient in a airbag influence its…

A: The accelerometer keeps track of how quickly the speed of your vehicle is changing. When your car…

Q: Calculate the volumes needed to create a 50 mL buffer solution with a target pH of 4.20. Use 0.10 M…

A:

Q: A 2.501 g sample of unknown metal chloride compound was reacted with excess silver nitrate resulting…

A: Mass of unknown sample of metal chloride =2.501 g Mass of silver chloride precipitate = 1.184 g We…

Q: Why does the newly condensed steam distillate appear cloudy?

A: Steam distillate is a liquid that is obtained by the process of steam distillation. In this process,…

Q: Predict organic product that forms in the reaction below: H Xym. + OH H+ OH H* X Note: You may…

A: The given reaction is shown below We have to draw the major product of the above reaction.

Q: Calculate the cell potential for this reaction, in the direction shown, at 298 K. Hg²+ (0.0000490…

A: For the given  concentration cell, the Nernst equation is E =Ecello-0.05916…

Q: the best method to investigate rate of reaction in a practical

A: The rates at which an chemical reaction occurs is known as the reaction rate, and it is proportional…

Q: H -2 O с

A: The question is based on the concept of organic chemistry. We need to identify the compound given.

Q: Which carbon would be assigned to the chemical shift at 18.5 C4 ppm? OH C3 CH3 O C1 C2

A: The chemical shift for the sp3 hybridised carbon atom is approximately 10 to 40 ppm. And the…

Q: Metal Specific Heat (J/goC) Calcium 0.647 Iron 0.449 Silver 0.235 Gold 0.129 In…

A:

Q: 5) Using the Born-Haber cycle, the AH°f of KBr is equal to A) AH°f [K (g)] - AH°f [Br (g)] - I1(K) -…

A: we have to determine ∆Hfo of KBr

Q: Draw the reaction mechanism using curved arrows. What mechanism is involved? From what can it be…

A: Reaction

Q: What is the origin of the discrepancy between the theoretical and experimental values of the molar…

A: The ideal gas law is a fundamental concept in the field of chemistry that describes the behavior of…

Q: # 1 2 3 4 P 3-D Structure H 84 C-N H =C Cl 5 C= Molecular Geometry H A-C C-CEN trignal Tetrahydral…

A: We have to write 3-D structure, molecular geometry, Lewis structure, chemical formula and total…

Q: Predict the MAJOR organic product of the following reaction sequence. H3C H 1) LDA in THF 2) H3C 3)…

A:

Q: Calculate the theoretical percent composition of chloride in aluminum chloride (AlCl3). Group of…

A:

Q: You determine the empirical formula of a compound to be CH3. In a separate experiment, you determine…

A:

Q: Determine which original label (with chemical identity) should be attached to each of the test…

A: Phenolphthalein is a chemical compound with the molecular formula, C20H14O4, which functions as an…

Q: What is K for a reaction if AGº =-226.1 kJ/mol at 25 °C (or 298 K)? (R = 8.314 J/mol · K) .

A:

Q: When the Cu²+ concentration is 5.33x10-4 M, the observed cell potential at 298K for an…

A: Multiple questions

Q: . Double-click on an atom, and then move cursor over another one to get a distance (click off of the…

A: The given question belongs to organic chemistry. We have to find the structure of the molecule or…

Q: [References] Use the References to access important values if needed for this question. Complete the…

A: Given reactants:  Ethyl formate and water in presence of proton catalyst HCOOCH2CH3  + H2O ---->…

Q: Which set of reagents should be used to prepare n-propylbenzene? Abenzene, CH3CH2CH2CI, AICI3…

A: The structure of n-propylbenzene is:

Q: Select the family to which the compound belongs: :O: The compound is O an amide O a carboxylic acid…

A:

Q: To 10 drops of an unknown halide sample, 5 drops of Ca2+ reagent were added. The solution turned…

A:

Q: Consider the reaction A → B with ΔS° = -80.980 J/(K·molrxn) and the reaction B → C with ΔS° =…

A:

Q: Calculate the standard enthalpy of combustion for the following reaction: 2(g) + 6H₂0 (1) CH₁206(s)…

A: Standard enthalpy of combustion is defined as the enthalpy change when one mole of a compound is…

Q: 5) Give the name and symbols for three ions that are isoelectronic with an unknown element whose…

A: 5) Isoelectronic species: Atoms with a similar amount of electrons are referred to as isoelectronic…

Q: Complete the following reaction and write the IUPAC names of the two products. CH3CH₂CH₂CH₂CH₂COCH 3…

A:

Q: Complete and balance the following redox reaction in basic solution Al(s) + OH⁻(aq) → AlO₂⁻(aq) +…

A: Redox Reaction  :Redox reaction is a the  reaction that involves the transfer of electrons between…

Q: 9. Given the HNMR provided, give the structure of the molecule. The IR shows a strong peak at 1650…

A: The the question is based on the concept of organic spectroscopy. we need to analyse the spectral…

Q: Reeded for this question. Draw a structural formula for lithium 2-ethylbenzoate, showing the charges…

A: Structural formula  is the graphic representation of the molecular structure  showing how the atoms…

Q: What is the missing reactant in this organic reaction? O HO-C-CH3 +R H* A O CH3-C-O-CH3 + H₂O…

A:

Q: since Paling and also not setric. SP How many "central" atoms are part of methanol (CH,OH)? What are…

A: In methanol (CH3OH), there is one "central" atom, which is the carbon atom (C) bonded to three…

Q: Number only the main chain of ALKANES. Note that there is also alkenes..

A: we have to number the main chain of alkane

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.