The overall charge on the polyatomic "dichromate" ion (Cr207) is -2. What is the oxidation number of chromium in this polyatomic ion? +3 -6 +6 -3

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Q: Do sample problem 13.6 in the Silberberg 8th edition. Hydrogen peroxide is a powerful oxidizing…

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Q: 2. Write the equation for the reaction between propylamine and HBr.

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Q: reaction quotient:

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Q: Use the References to access Important v What is the common name of the following compound? H. H.

A: The common name of the given compound is

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A: Given : We have to tell what will be the correct mechanism.

Q: O STATES OF MATTER Understanding how solubility varies with temperature and. Predict V will be…

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Q: Would an aqueous solution of 0.25M sodium formate be acidic, basic or neutral? Write the equation…

A: Given,  An aqueous solution of 0.25M sodium formate is:

Q: 130 120 110 100 90 80 70 60 50 • Stable 40 Radioactive 30 20 10 10 20 30 40 50 60 70 80 90 100…

A: The plot of stable and radioactive nuclei is given by,

Q: Which of the following statements about combustion reactions is not true? C They can involve certain…

A: Option D is correct answer.

Q: 4. Write the product and give mechanism. *CO Et (ii) -CH3 RCN/.. \PMe3 Rh Me,P

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Q: Perform a t-test comparing COMP250 to COMP100 and COMP250 to COMP20. A p value when p0.05 is not…

A: COMP250 COMP100 COMP20 n=1 87.77 81.73 65.8   n=2 81.71 50.54 63.7   n=3 86.64 55.38 59.4…

Q: Which of the following bases will produce Zaitsev alkene as the major product in an E2 reaction? а.…

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Q: Use standard enthalpies of formation to determine ΔHoreaction for the following reaction: 2N2H4(l) +…

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Q: What are the main Chemical Interferences that affect the absorption of atomic line in AAS?

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Q: Given the following reaction: A (g) + 2B (g) + heat 2D (g) 2C (g) + Considering Le Châtelier's…

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Q: An acidic solution is 6 mM in each of the following metal lons: Pb+, Zn2+, Mn2+, cu2. see the…

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Q: Phosphorus-32 is radioactive and has a half life of 14.3 days. Calculate the activity of a 6.3 mg…

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Q: Table 6b. Sucrose Concentration 0 0.1 0.20.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 (Molarity) 5.00 5.00 5.00…

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

Q: Rank the following acids from least to most acidic. (Start with the least acidic as 1) Br Br. HO Br

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Q: Calculate the molality of a 35.4 percent (by mass) aqueous solution of phosphoric acid (H,PO,). The…

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Q: 1.21 х 103 М HNO3

A: Calculate the pH of each of the following solutions of strong acids.

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A: Given below reaction is double replacement reaction where the cations (Ba2+ ,H+) switches places..

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Q: When 25.0 mL of a 8.63×10-4 M cobalt(II) acetate solution is combined with 22.0 mL of a 1.70×10-5 M…

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Q: Solid iodine, I2(s), has an enthalpy of sublimation ΔHsubl = 62.4 kJ mol-1. Suppose 5.36 g of iodine…

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Q: Hydrogen and iodine react to form hydrogen iodide, like this: H,(g) + L(g) –→ 2 HI(g) Also, a…

A: Given-> H2(g) + I2(g) ---> 2HI(g) pH2(g)=52.8 atm pI2(g) = 48.9 atm pHI(g) = 47.3 atm

Q: Look up the structures of acetone, 1-butanol, glycerol, and hexane online.  Which of those four…

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Q: 7,7 = exp((E -ET)/kT),. PROBLE 5.1 Using exp((E - ET)/kT) ;8C = Con7 (0) exp - еxp %3D Ynơn 2ND -…

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Q: Draw the Lewis structure for the selenium dioxide (Seo,) molecule. Be sure to incude all resonance…

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Q: OH O OH NO2 NOZ

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Q: %Lysis COMP 250 COMP 100 COMP 20 n=1 87.77 81.73 65.8 n=2 81.71 50.45 63.7 n=3 86.64 55.38 59.4 n=4…

A: The solution of the question is given below:

Q: 1. The molar heat of formation of Sno. is -343.4 kJ/mol: AH,-343.4 kJ/mol Sn+ 1/20> SnO Wate o…

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Q: Which of the following sets of quantum numbers, do the following: i. If correct, draw an orbital…

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Q: Question 17 When element X forms an ion, the ion has a 3- charge and is isoelectronic with Ar.…

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Q: Use this condensed chemical structure to complete the tabl The condensed chemical struct "CH. CH.…

A: Given :-  Condensed structural formula of ethylene :-  CH2=CH2  To determine :-  Total C-C bonds…

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