What is the oxidation number of sulfur in Na2S2O3? O +2 O +6 O +12 O +4 O +3

Q: B. Arrange the following elements according to their Periodic Trends Increasing Electron affinity…

A: Periodic table represents all the elements arranged in 18 groups and 7 periods. The arrangement…

Q: Calculate the number of particles of each elements/ compound contain. 1. 9.2 moles of NBr3 2. 4.74…

A: Given: Moles of NBr3 = 9.2 mol Moles of gold = 4.74 mol Moles of Mg= 9.2 mol

Q: Given the monomer below, draw a polymer chain with three links (i.e., three repeating monomers).…

A: The solution is given below -

Q: expior ehais! about your favorite summertime material. (A) What is the material made out of (i.e.,…

A: Cotton fiber is one of the highly acclaimed natural fibers under the genus of Gossypium made up of…

Q: Choose reagents from the following list which will lead to an effective synthesis as shown below.…

A:

Q: Ethane gas, C,H,, burns in air (actually the oxygen in the air) to form carbon dioxide and water.…

A:

Q: A solution prepared by mixing NaOH with NaHCO3 was diluted to 500 mL with water. A 25.00 mL aliquot…

A:

Q: Which of the following does not show a proper part: purpose correlation in a voltaic cell?…

A: Voltmeter : when electron  flows from anode electrode to cathode electrode in voltaic cell ,…

Q: please answer question 4.

A: Given:Velocity (Δv) = 50.0 m/s.Mass of hydrogen atom = 1 amu = 1.66 x 10-27 Kg.

Q: 035 (part 1 of 2) The freezing point of an aqueous solution that contains a non-electrolyte is…

A: To solve this problem we will use the formula  ∆Tf = i Kf m  Where , ∆Tf = depression in freezing…

Q: Chemistry Which product will precipitate out when mixing AgNO3 (aq) and HBr (aq)? A) AGNO3 B) HBr C)…

A: Precipitation reaction is one where the reaction involves production of solid residues known as…

Q: Describe a series of reactions that could be used to create butanoic acid from butene. Include the…

A:

Q: D. Calculate the enthalpy change by using the given chemical reaction below with the net chemical…

A: The given data is as follows: Net reaction: 4NH3 + 3O2 → 2N2 + 6H2O        ∆Hr=? N2 + 3H2 → 2NH3…

Q: The following initial rate data was collected at 25°C for the reaction: 4 A+B+ C, –→ A‚B + 2 AC…

A: The reaction taking place is given as, => 4 A + B + C2 ---------> A2B + 2 AC…

Q: 12. Which compound will have the smallest Rf on a TLC plate using silica gel (SiO₂) as the…

A: This problem is based on Chromatography. Here retention factor or Rf is needed to be found.

Q: C. The following are some metals that form more than one cation. List the cations that they form.…

A: A positively charged ion is called as cation. The cations are formed after loss of one or more…

Q: 2. Given the H3PO4 - NaH₂PO4 buffer system, which of the following is false when KOH is added into…

A:

Q: Calculate the equilibrium constant for the phosphorylation of glucose to glucose 6-phosphate at 37.0…

A: Well, we will first find out the equilibrium constant. and after that, we will construct the ICE…

Q: 2. Net Reaction: H2+0 H;0 2H: + O2 2H20 +576 KJ 20 +495 KJ

A:

Q: The two chemical reactions that occur in this in the Percentage of Copper in Copper(II) Sulfate…

A: In the determination of Copper in Copper sulfate experiment we find the mass of CuSO4 obtained from…

Q: Please give appropriate structure for compound A. Compound A has 6 carbons, two stereocenters (both…

A: The given IR spectrum of compound A is:

Q: For the following 6 isomers; please identify at least 3 pairs of enantiomers, 3 pairs of…

A: Cyclohexane is exist in different confirmation. Chair conformation is more stable and lower in…

Q: Which of the following statements does NOT explain why KHP is a suitable primary standard in an…

A: KHP is a suitable primary standard in an acid-base titration. Here we have to find out the…

Q: 20. AIH3 C2H4 22. Cu

A: Here the last 3 subpart is:

Q: Odor Volatility Flammability (VES ar NO Combustibility Mesor MO Boiling Point as temperature…

A: When a chemical compound contains only carbon and hydrogen atoms as its key constituent atoms, then…

Q: 7. Addition of barium chloride to a saturated solution of barium hydroxide causes a/an in mass of…

A: A saturated solution is the solution which contains maximum amount of solute i.e barium hydroxide.

Q: 1. A student doing the experiment in this module extended the study of the [COCI,Pion/Co(H₂O) ion…

A: Since you have asked multiple questions, we will answer only first question for you. In order to get…

Q: Question 6 If the plot is not displayed, please see Figure F13-4-2-b (the water phase diagram) in…

A: Answer: Triple point is the temperature and pressure values corresponding to a substance at which…

Q: H2O -286 KJ 2. Prove that the enthalpy change of formation is equal to the total change of enthalpy…

A: Given,  Enthalpy of formation of (ΔHf) of CO2 = -393 KJ  Enthalpy of formation of (ΔHf) of H2O =…

Q: 2. The rate of the reaction between hemoglobin (Hb) and carbon monoxide (CO) was studied at 20°C.…

A: a.

Q: 6. answer correctly or I will leave negative remarks.

A:

Q: Complete the following reactions: A. 2-pentene + water → B. cyclohexene + HCI - conc. H2 SO4 C. c.…

A: A]         Product :        2-pentene Is a five carbon containing unsaturated hydrocarbon molecule,…

Q: The following is the equilibrium diagram for two compounds A and B, each has a melting point of 80…

A: Eutectic Point: The Point, where the liquidus curves and solidus intersect, is termed the eutectic…