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- Calculate the oxidation number of the underlined element. a) HClO4 b) CH4 c) PO4 3- Consider the photosynthesis reaction: CO2 + H2O → CH2O + O2 Change in O.N. for oxygen: ????Aqueous solutions of ammonia 1NH32 and bleach (active ingredient NaOCl) are sold as cleaning fluids, but bottles of both of them warn: “Never mix ammonia and bleach, as toxic gases may be produced.” One of the toxic gases that can be produced is chloroamine, NH2Cl. (a) What is the oxidation number of chlorine in bleach?Complete the following table oxidation state formula name -2 S2- a) +2 b) Thiosulphate c) SO32- Sulphite +6 d) Sulphate
- T23 (This question and the following questions use the same equation). Balance the following reaction using the oxidation state method. Then give the coefficient of sulfur dioxide in the balanced equation. ___ SO2 + ___ MnO4– + ___ H2O --> ___ SO42– + ___ Mn2+ + ___ H+ Select one: a. 2 b. None of these c. 10 d. 16 e. 4 f. 6 g. 3 h. 5The proper assignment of oxidation numbers to the elements in the polyatomic ion SO32- would be what?Aqueous solutions of ammonia 1NH32 and bleach (active ingredient NaOCl) are sold as cleaning fluids, but bottles of both of them warn: “Never mix ammonia and bleach, as toxic gases may be produced.” One of the toxic gases that can be produced is chloroamine, NH2Cl.Another toxic gas that can be produced is nitrogen trichloride, NCl3. What is the oxidation number of N in nitrogen trichloride?
- Sodium metal and chlorine gas can be produced by the electrolysis of molten Sodium chloride as shown in the following equation: 2NaCl(I)-----2Na(I)+ Cl2(g) What mass of Na in grams would be produced from 10.00 g of NaCl?Aqueous solutions of ammonia 1NH32 and bleach (active ingredient NaOCl) are sold as cleaning fluids, but bottles of both of them warn: “Never mix ammonia and bleach, as toxic gases may be produced.” One of the toxic gases that can be produced is chloroamine, NH2Cl.What is the oxidation number of chlorine in chloramine?Give the oxidation state of the atoms in the following compounds: Cl2, Pb(OH)2, MnO4-, C2H6
- What are the net ionic equations of the following (include physical states): - copper(II) sulfate, CuSO4, and potassium hydroxide, KOH - lithium carbonate, Li2CO3, and aluminum nitrate, Al(NO3)3 - sodium phosphate, Na3PO4, and barium chloride, BaCl224) In the following reaction: As + 3e‾ → As‾3, As is ……………………… a. Reducing agent b. Electrolyte c. Oxidizing agent d. Both oxidizing and reducing agentA railroad tank car carrying 1.5 103 L of concentrated sulfuric acid derails and spills its load. The acid is 93.2% H2SO4 by mass and has a density of 1.84 g/mL. How many kilograms of sodium carbonate (soda ash) are needed to neutralize the acid? (Hint: What is the neutralization reaction?)