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- Hematite, Fe₂O3, is an important ore of iron. (An ore is a natural substance from which the metal can be profitably obtained.) The free metal is obtained by reacting hematite with carbon monoxide, CO, in a blast furnace. Carbon monoxide is formed in the furnace by partial combustion of carbon. The reaction is Fe₂O3(s) + 3CO(g) → 2Fe(s) + 3CO₂(g) How many grams of iron can be produced from 1.34 kg Fe₂03? g FeBalance the following chemical equation (if necessary): SiO₂ (s) + C(s) → Si(s) + CO(g)1. Sodium reacts with water according to the following reaction: Identify the oxidizing agent, and reducing agent 2 Na (s) + 2 H2O (l) 2 NaOH (aq) + H2 (g) 2. Write the correct balanced equation for the combustion of butane (C4H10)
- Balance the equation: TiCl4(s) + H2O(g) → TiO2(s) + HCl(g)What mass of Cu(IO3)2 can be formed from 0.650 g of CuSO4 · 5H2O? What mass of KIO3 is needed to convert the copper in 0.2750 g of CUSO4 - 5H2O to Cu(IO3)2?(1) One of the steps in the commercial process for converting ammonia to nitric acid involves the conversion of ammonia, NH3(g) to nitrous oxide, NO(g). 4 NH3(g ) + 5 O2(g) → 4 NO(g) + 6 H2O(l) Atomic weights (g/mol): N=14, H=1, O=16 a. Balance the above chemical equation that represents the conversion. b. How many moles of oxygen are needed to convert 2.5 moles of ammonia? c. How many grams of water will be produced from 2.5 moles of ammonia? d. If 150 grams of oxygen reacted 2.5 moles of ammonia, identify the limiting and excess reagents. e. How much of the excess reagent remains unreacted? f. If the reaction in (d) produces 10.0 grams of nitrous oxide, calculate the percent yield.
- Mg(OH)2(s)+2HNO3(aq)→ the balanced chemical formula?S. Titanium occurs in the magnetic mineral ilmenite (FeTiO3), which is often found mixed with sand. The ilmenite can be separated from the sand with magnets. The titanium can then be extracted from the ilmenite by the following set of reactions: FETIO;(s) + 3 Cl2(g) + 3 C(s) → 3 CO(g) + FeCl2(s) + TiCl,(g) TICL(g) + 2 Mg(s) –→ 2 MgCl;(1) + Ti(s) Suppose that an ilmenite-sand mixture contains 22.8% ilmenite by mass and that the first reaction is carried out with a 90.8% yield. If the second reaction is carried out with an 85.9% yield, what mass of titanium can be obtained from 1.00 kg of the ilmenite-sand mixture?How many moles of lithium hydroxide would be required to produce 31.5 g of Li₂CO₃ in the following chemical reaction? 2 LiOH(s) + CO₂(g) → Li₂CO₃(s) + H₂O(l)
