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標題:

Lead(II) oxide

發問:

how to extrat lead by heating Lead(II) oxide in town gas?(word equation) 10 points!! 更新: what about the methane(CH4)??

最佳解答:

• 有冇軟件可在電腦用粵語發音讀文章-@1@
• 幫我改呢篇presentation(15分)@1@
• 屋管理扣分制@1@

 

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The major compositions of town gas is carbon monoxide (CO) and hydrogen (H2). If you purge the PbO with the town gas. The carbon monoxide and hydrogen will reduce the lead(II) oxide back to its metallic form. The equations respectively are: PbO + CO ---> Pb + CO2 PbO + H2 ---> Pb + H2O

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