2021年内蒙古包头市中考化学试卷（附答案详解）

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34ூ23]^௃᪷ROZ᪷`ᔠIᡂXRFFᐭFᳫFᳫxyFRX`ᔠIᡂXXlឋQ}~⁐஺ூᵨᢣ௃ᵨ╆᝱*+⌕QRឋᱥᵨ஺§⚪©⌕ὃ«ᱥḄឋe¬⌕᪷ᔜ®ᱥḄឋ`ᔠᔜ☢ᩩ°ᑖ᪆ஹᑨ¡±!²³´µḄ`a஺31.ூ¬ᫀ௃7/1219.2BaCl+HS0=BaS0I+2HC19.823.3—=—2%2244ூ¸¹௃ᨵᐵᓄSTºḄ»¼ஹd8ᑖᦪḄᭆ¿R»¼ஹᓄḄ»¼ூe᪆௃e/(1)জN(N02)3*ᐗÂRZᐗÂḄ8Ã/56/96=7/12஺ᦑ./7/12«ঝ30.4gN(NO2)3ᨵ/30.4gXញ=19.2gZᐗÂ஺ᦑ./19.2»(2)জ@⏚RUᓄÇSTIᡂ⏚ÇrsRA⏚KSTḄᓄº/BaCl+2HS0=BaS0i+2HC1,244ᦑ./BaCl+HSO=BaS0I+2HCU2244ঝᡠᵨ@⏚dḄ8/100gX9.8%=9.8g,STÉIᡂp⁐rsḄ8y,IᡂUᓄO8z,BaCl+HS0=BaS0I+2HCL22442089823373x9.8gyz98_233_739.8gyz'y=23.3g,z=7.3g,ᦑ./9.8Ê23.3.ঞÌ?STUᓄuḄ8X,ÍeUᓄÇ8ḄÃÎ/W=஺ÏÐÑ20898ᦑ./Ò=Ó஺টᔣSTÉḄÖh?ᐭ88.3gXdh8/100g+200g-23.3g+88.3g=365g,ᡠ²dhdḄ8ᑖᦪ/×x100%=2%஺ᦑ./2%஺

35(1)᪷ᱥḄᓄ_ᐸÚÛ8»¼ÜᡂᐗÂ8Ã_ᐸᐗÂ8஺(2)@⏚RUᓄÇSTIᡂ⏚ÇrsRA⏚᪷STḄᓄº_ᐸÞßᦪᐵ☢Ḅ»¼஺§⚪©⌕ὃ«Iàᵨᓄº»¼Rá¡ḄQ⻼⌕ãឋRåµឋ஺32.ூ¬ᫀ௃e/(1)N⏚┛RA⏚STIᡂdឋḄUᓄ┛ஹXRYZᓄNᒕéêëᩖḄ8N⏚┛Ḅ8=10x2g-10g=10gK®┛ᱏN⏚┛Ḅ8ᑖᦪ=òx100%=50%Ê(2)IᡂUᓄ┛Ḅ8x,IᡂYZᓄNḄ8y,◤⌕UᓄOḄ8z஺CaCO+2HC1=CaCl+HO+COT3222100731114410gzxy100_11110g-xx=11.1g100_44iog—yy=4.4g100_7310g—ZZ=7.3gᡂᓄ┛Ḅ=᰿=111g,ᐭ⏚Ḅ=Illg+4.4g-10g-IUTO55.4g=50.0g(3)ᡠᵨ⏚Ḅᑖᦪ=*x100%=14.6%-◤ᵨ36.5%Ḅ/⏚Ḅ0Wo200gx14.6g=wx36.5%w=80g67(1)89┛ᱏ;<⏚┛Ḅᑖᦪ050%=(2)ᐭ>⏚Ḅ050.0g=(3)?@ᑴ200gBC/DḄ>⏚E◤ᵨ36.5%Ḅ/⏚Ḅ080goூGHI௃ᨵᐵᓄMNOPQRḄSTஹᑖᦪḄᭆWXSTY36⚓Eᐳ37⚓

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