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answerhappygod
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When copper is heated with an excess of sulfur, copper(I) sulfide is formed. In a given experiment, 0.0970 moles of copper was heated with excess sulfur to yield 6.48 g copper(1) sulfide. What is the percent yield?

If 25.0 g of NH3 and 52.7g of O2 react in the following reaction, how many grams of NO will be formed? 4 NH3(g) + 5 O2 (g) → 4 NO (g) + 6 H₂O (g)
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