The reduction of iron(III) oxide (Fe2O3) to pure iron during the first step of steelmaking, 2 Fe₂O,(s) 4 Fe(s) + 302(g) is driven by the high-temperature combustion of coke, a purified form of coal: C(s) + 0,(e) co,(s) O2(g) Suppose at the temperature of a blast furnace the Gibbs free energies of formation AG, of CO2 and Fe2O3 are -423. kJ/mol and -815. kJ/mol, respectively. Calculate the maximum mass of pure iron that can be produced by the combustion of 410. t of coke. (One metric ton, symbol t, equals 1000 kg.) Round your answer to 2 significant digits. kg

For what purpose Biuret test is used?

[References] 1 pt b. Balanced formula equation: 1 pt HCHO2(aq) + KOH(aq) 1 pt 1 pt Complete ionic equation: 1 pt 1 pt 1pt 1 pt Net ionic equation: 1 pt 1 pt 1 pt c Balanced formula eqmation: 92) e element +. +.

1.) LIAIH(O'Bu)3 2) CH2 a) b.) 1.) c) 1.) 2) 2) R. d) 1.) e) 1.) R. R 2) 2) R"abbreviation for answers 2)

Dr. Josh Axe states that frankincense oil has the following properties: (Select all that apply.) Choose at least one answer. a. hair thickener b. conducive to meditation c. anti-inflammatory d. good for digestion

Select the best answer. .CI 1.) LIAIH(O'Bu)3 2) ( Ph-P-CH2 3 a) 1.) b.) 1.) c.) 1.) R 2) 2) H 2) e) 1.) d.) 1.) 2) O. 2)

Use the Rings menu to draw cyclobutane, a four carbon ring. Select Draw Rings More Erase H

Part C Li + then H₂O+ quench

Quality control material in the hematology laboratory is best described as:     Question 3 options:   A)  a stable material used to establish the accuracy of an automated method and normal curve   B)  a stable material used to monitor the functioning of an analyzer or the performance of a process   C)  reagents used to perform preventative maintenance   D)  materials tested to develop a normal reference range

INSTRUCTIONS 1. Please enumerate all given values. 2. Identify all unknown values 3. Write the formula first before substituting the values. 4. Enclose final answers in boxes. 5. Do not round off immediately. Consider the whole value during computations. 6. Round off final answers to 2 DECIMAL PLACES ONLY. Problem: What volume (mL) sulfuric acid solution (98.0% of the concentrated sulfuric acid by weight; density 1.84 g/mL) and the volume of water are used in the preparation of 2.00 L of a 4.00 N solution?