21. 2 jHeliumj atoms undergo fusion.

Q: 8) An unsealed 450.0 mL beaker contains 320mL of a very dense gas at 52 °C and 3.12 atm. The gas is…

A: Answer-8 When at constant pressure, temperature of the gas is increased its volume also increases…

Q: Part B Spell out the full name of the compound

A: The structure of the given compound is,

Q: 5. Draw the intermediate and final product formed in the following reaction sequence NaBH4 H20 Mg…

A: The oxidation reaction involves the addition of oxygen to the substrate and the reduction reaction…

Q: scribes her results? a) Her results are precise, but not accurate. b) Her results are accurate, but…

A: If experimental values are close to true value then it is Accurate.  And if experimental values are…

Q: 5) The scene below depicts a neutron bombarding 23U: 144 235 55 92 Is this an example of fission or…

A: A nuclide is a class of atoms characterized by their number of protons, number of neutrons, and…

Q: 6. Consider that the average lung can hold about 6 liters of air and the composition of air is 78%…

A: Volume of air lung can hold = 6L Composition of air in lungs -- 22% oxygen and 78 % nitrogen  Mass…

Q: 4. Calculate the concentration of all species in a 0.20 M KF solution. (pK, for HF is 3.17) Sa lt…

A: Determine whether the salt is acidic, basic, or neutral. KF consists of K+ and F- ions. K+ is the…

Q: 7. At 25°C, an aqueous solution of AlBr3 will have: (a) pH >7 (b) pH = 7 %3D (c) pH < 7

A:

Q: 1) A 25.00 mL sample of unknown concentration of HNO3 solution requires 22.62 mL of 0.02000 M NaOH…

A: Molarity of the solution is equal to the number of moles of substance dissolved in per liter of…

Q: COMPOUND LEWIS DOT STRUCTURE SbCl5 (use brown sphere for Sb) TeCl4 (use brown sphere for Te) BrF3…

A: This question is based on the VSEPR theory which helps us predict molecular shapes and geometry.…

Q: 2. One way to cool a cup of coffee would be to plunge an ice-cold piece of aluminum inte ie 20.00 g…

A: Decrease in the temperature of coffee's is = 90.0oC-75.0oC = 15oC The heat capacity of coffee is =…

Q: 1. In the reaction: 4Li (s) + O₂(g) → 2Li₂0 (s) a. what is the product? Liao(s) b. what are the…

A:

Q: %. Hatoms 6.949 + 2159 X 26. A solution of 4.00 g of a nonelectrolyte dissolved in 55.0 g of benzene…

A:

Q: 4. Compare the total mass of the reactants with the total mass of the products: Total Mass of the…

A: Given reaction is,  K2CrO4 (aq) + Pb(NO3)2 (aq) →2KNO3 (aq) + PbCrO4 (s)

Q: (e) NaOCI/ACOH N₂H, KOH, DMSO (c) 2 CH Br, Mg H₂O + (g) Sia ,BH H₂O₂, OH 2¹ (a) Br. (i) FeBr 3 (h)…

A:

Q: When using the formula PV = nRT, how would you rearrange it to solve for the unknown, T? OT=PV/nR…

A:

Q: 36. Calculate the energy of a photon if it has a frequency of 3.75x10¹4 Hz.

A: The energy of a photon can be calculated by using the formula  E = h × v E = energy of photon  h =…

Q: A) Below is a conjugated diene. Show the possible 1,2-product and 1,4-product in the reaction with…

A: If a conjugated diene reacts with a limited amount of electrophilic reagent so that addition can…

Q: 11.11. The potential (E) of the Co³+/Co²+ redox couple can be changed by adding the ligand…

A: The main aim is to determine which peak, peak 1 or peak 2, would experience the most significant E…

Q: Draw the major product from this reaction. Use wedge and dash bonds to indicate relative…

A: We have to draw the major organic product of the given reaction.

Q: 10. Rank the species below in order of increasing nucleophilicity in polar aprotic solvents:…

A: A nucleophile is a chemical species that donates an electron pair to form a chemical bond in…

Q: 37. Calculate the frequency of light that has a wavelength of 6.4x107m.

A:

Q: 5. What is the edge length of a body-centered cubic unit cell made up of atoms that each has a…

A:

Q: 1. The pka for benzoic acid is 4.2. Show mathematically that this acid is 50% ionized at pH 4.2. 2.…

A: The given sample is benzoic acid. pKa of benzoic acid = 4.2We have to mathematically prove that 50%…

Q: number 21 please.

A: 21) Since OMe- is a base. hence it will remove proton from the reactant which will attack and remove…

Q: In questions 4-7, refer to the scheme below. Maxigesic is a combination analgesic containing…

A: various organic compound are usually soluble in organic solvent more than water because of non polar…

Q: 39. A person claimed that his stomach ruptured when he took a teaspoonful of baking soda in a glass…

A: NaHCO3 + HCI ==&gt; NaCI + H2O + CO2 1 mole NaHCO3 reacts to form 1 mole

Q: 21. NH: HO,C

A: The substituent on benzene ring directs the incoming electrophile to ortho, meta, para position.…

Q: 10. A sample of xenon gas has a volume of 7.50 L at 35°C and 675 mmHg. What is the final pressure of…

A:

Q: 3.57 Write a balanced equation for the following gas phase reaction (carbon is black, hydrogen is…

A: From given colours of the gas phase we are determining the balanced equation for those as follows…

Q: please

A: The proper sequence for molecular docking is : A, B, C, D, E, F, G

Q: 1. Show the product(s) of reaction of the following alkene with NBS:

A: Applying concept of reactivity of NBS as allyl halogenation.

Q: 10) Always a diligent chemist, you spend your free time thinking about the strengths of acids. How…

A: The dissociation of acid is given by: HA → H+ + A-Ka = H+  A-HA If the strength of the acid…

Q: 1) Write down an equation by which, you can show what happens when the following compounds are…

A:

Q: 3. Classify each species as either a Lewis acid or a Lewis base. a. Fe3+ C. BH3 b. NH3 d. F

A: Since we know that  Lewis Acid: it is defined as the  species which  accepts an electron pair (i.e.,…

Q: 『 ニ 1bU • 160 10. A solution containing 0.050 g of an unknown nonelectrolyte in 2.50 g of…

A: Given,  Cyclohexane (solvent) = 2.5 g = 0.0025 kg , unknown non-electrolyte (solute) = 0.050 g,  Kf…

Q: 2) For the reaction Q W+X, the following data were obtained at 30 °C: [Qlinitial (M) 0.170 0.212…

A: #Note:- Solution is provided in Handwritten images, which are provided below:-

Q: Determine the position that is most likely to be the site of an EAS reaction in the compound below:…

A: Site for an EAS in case of disubstitued benzene is decided as follows:

Q: How many kinds of chemically non-equivalent hydrogens are there in each of the following compounds?…

A: Here, we have to find the number of chemically non-equivalent hydrogens in the given compounds.

Q: Number 20 and 21 please

A: 20.Given, Threshold frequency = 4.86*10-8s-1. The work function can be calculated as follows:

Q: 4. Predict the products of the following reactions: + CH3-CH-CH3 ----> | a. CH3-CH2-CH2-C=O OH OH b.…

A: Product of the reactions:-

Q: 4. Predict the product(s) and show the complete electron-pushing mechanism for each of the following…

A: Applying concept of halogenation and birch reduction.

Q: [References) Name the following compounds. (Include stereochemical terms where appropriate. Only use…

A: The compounds given are,

Q: Just number 20

A: Given: Initial Volume V1 = 242  mL Initial moles n1 = 0.00901 mol Final moles n2 = 0.00703 mol Final…

Q: 5. How would you prepare the following compounds, starting with cyclohexene and any other reagents…

A: The reactant given is cyclohexene.

Q: Which statement best describes all physical separation methods? A) they cause a change in the…

A: Note: Since you have asked multiple questions, we will solve the first question for you. If you want…

Writing and Balancing Nuclear Equations

A nuclear equation is a symbolic representation of a nuclear reaction using certain symbols. It is studied in nuclear chemistry and nuclear physics.