When powdered zinc is heated with sulfur, a violent reaction occurs, and zinc sulfide forms:→+Zns  S8s  ZnSs [unbalanced]Some of the reactants also combine with oxygen in air to form zinc oxide and sulfur dioxide. When 83.2g of Zn reacts with 52.4g of S8, 98.60g of ZnS forms.Part 1 of 3What is the percent yield of ZnS? Be sure your answer has the correct number of significant figures.86.1%Part 2 of 3If all the remaining reactants combine with oxygen, how many grams of ZnO form? Be sure your answer has the correct number of significant figures.14.4gPart 3 of 3If all the remaining reactants combine with oxygen, how many grams of SO2 form? Be sure your answer has the correct number of significant figures.4.31gCheckSave For LaterSubmit AssignmentTerms of Use|Privacy Center|Accessibility

Using your equation, explain why the reaction between zinc and oxygen is a composition reaction.

How many moles of ammonia are produced from 0.60 moles of nitrogen? N2 (g) + 3 H2 (g) yields 2 NH3 (g)2 marks0.60.21.20.3Q3What is the mole ratio of zinc to hydrogen gas? Zn (s) + 2 HCl (aq) yields ZnCl2 (aq) + H2 (g)2 marks1:22:11:11:3Q4

Zinc occurs mostly as sulfide ores. It is then heated to produce zinc oxide. Using your knowledge of the reactivity series and oxidation/reduction, explain how zinc can be extracted from zinc oxide and predict the products of the process.

Calculate the percentage atom economy for the following reaction in which zinc chloride (ZnCl2) is the desired product.Zn(s) + 2HCl(aq) → ZnCl2(aq) + H2(g)Give your answer to three significant figures.                M Zn = 65.38 g mol–1, M H = 1.01 g mol–1, M Cl = 35.45 g mol–1

What is the mole ratio of zinc to hydrogen gas? Zn (s) + 2 HCl (aq) yields ZnCl2 (aq) + H2 (g)2 marks1:22:11:11:3