九年级英语周报2021-2022（）答案

15.(1)分液漏斗(1分);4H+MnO2+2C-Mn++Cl1↑+2H1O2分)(2)饱和食盐水;除去Cl2中的HC(各1分)(3)11 5:2Fe(NO, ),+3KCIO-+10KOH--2K, FcO,+3KCI-+6KNO,+5H, O( 2 25)(4)重结品(1分);乙醇易挥发,且挥发时带走水分,防止K2FO与水反应(2分)(5)96%(2分)

第四部分第二节Iwo davs before my birthday last vear. Dad came home earlv. As usual. Ihelped him carry his bags into his study: When I turned to leave. he said: "Hey. wouldyou like to help me clean my comb? It's been a while since I last cleaned"It hit methen why. as a child. helping my dad clean his comb was such a joy. That routinemeant that my dad was home early to spend the evening with Mum and I. It meantwould watch TV with us or play a few video games with me. It meant a happyloving familyI pass the clean comb back to Dad. I noticed the wrinkles next to his eyes.They are more noticeable when he smiles. but his smile is still as heartw arming asbefore. The smile of a father who just wants a good life for his family. Dad carefullyplaces his comb on top of his wallet. After so many years. he still organises hispersonal items in the same careful way. I guess some things never change. And forthat. I'm glad

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