(a)
Interpretation:
Balanced equation has to be written for
Concept Introduction:
Chemical reaction can be expressed in the form of a chemical equation. All the
(b)
Interpretation:
Balanced equation has to be written for production of hydrogen gas from hydrochloric acid on reaction with iron nail.
Concept Introduction:
Refer part (a).
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OWLV2 FOR MOORE/STANITSKI'S CHEMISTRY:
- In acidic solution, hydrogen peroxide reacts with Fe2+ to produce Fe3+ and H2O. Write a balanced equation for this reaction.arrow_forwardA slag sample is known to contain all of its iron in the forms of FeO and Fe2O3. A sample of 1,000 g of the slag was dissolved in hydrochloric acid according to the usual method, then reduced with stannous chloride and finally titrated with a 0.02237 M solution of potassium permanganate, of which 28.59 mL were used. A second aliquot of the slag sample, weighing 1,500, was dissolved in a nitrogen atmosphere to further adjust the oxidation state of the iron, it was immediately titrated with the same potassium permanganate solution. If this second experiment required 15.60 mL of permanganate solution, calculate: a) The percentage of total iron in the slag. b) The percentages of the oxide FeO and Fe2O3arrow_forwardPredict the products of each of the following reactions and then balance the chemical equations.(a) Fe is heated in an atmosphere of steam.(b) NaOH is added to a solution of Fe(NO3)3.(c) FeSO4 is added to an acidic solution of KMnO4.(d) Fe is added to a dilute solution of H2SO4.(e) A solution of Fe(NO3)2 and HNO3 is allowed to stand in air.(f) FeCO3 is added to a solution of HClO4.(g) Fe is heated in air.arrow_forward
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- (i) Name the method of refining of metals such as Germanium.(ii) In the extraction of Al, impure Al2O3 is dissolved in cone. NaOH to form sodium aluminate and leaving impurities behind. What is the name of this process?(iii) What is the role of coke in the extraction of iron from its oxides?arrow_forwardWrite balanced chemical equations for the following reactions:(a) zinc metal heated in a stream of oxygen gas(b) zinc carbonate heated until loss of mass stops(c) zinc carbonate added to a solution of acetic acid, CH3CO2H(d) zinc added to a solution of hydrobromic acidarrow_forwardComplete and balance the following equations:(a) An active metal reacting with acid,Al(s)+HCl(aq)→ (b) A salt like (alkali metal) hydride reacting with water,LiH(s)+H2O(l)→arrow_forward
- Write a balanced equation for each of the following reactions:(a) preparation of white phosphorus from calciumphosphate, (b) hydrolysis of PBr3, (c) reduction of PBr3 toP4 in the gas phase, using H2.arrow_forwardexplain the preparation of K2Cr2O7 from chromite ore.arrow_forwardComplete and balance the following equations:(a) An active metal reacting with acid, Al(s) 1 HCl(aq) →(b) A saltlike (alkali metal) hydride reacting with water, LiH(s) 1 H2O(l) →arrow_forward
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