2021年广东省中考化学模拟试卷(解析版)

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2021
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14D.íëḄ᪶ᵯ₹ᦪv18ூᑖ᪆௃ë᪀êY³ᦪ=᪶᜜ᵯᦪvɳᦪு᪶᜜ᵯᦪ,v□´É³ᦪீ᪶᜜ᵯᦪ▢ᙊᙌᑁᦪ⊤᪶ᑁᦪ⊤ᵯḄᦪ⊤ḄᵯᦪᙊᙌᨬḄ⊤ᨬ᜜ᑖ᪆ᑨ.ூ#$௃#&Aஹᵫᐗ*XḄ+,-.᪀01ᐸ᪶ᑁᦪ17,3ᐗ*ᦑ⌱⚗78┯:஺Bஹ-Ḅᨬ᜜ᵯ8,<=ᑮ?@.᪀ᦑ⌱⚗78AB஺Cஹ-Ḅᦪ=17,᪶᜜ᵯᦪ=18,ᦪீ᪶᜜ᵯᦪD1EᓫGHᵯ₹ḄᐸJKXஹᦑ⌱⚗78┯:஺Dஹᵫᐗ*XḄ+,-.᪀01ᙊᙌᑁḄᦪL17,⊤-Ḅ᪶ᵯ₹ᦪ17,ᦑ⌱⚗78┯:஺ᦑ⌱&B«ூMN௃O⚪QRSᜧὃVWXY-.᪀01Zᐸ0[Ḅᳮ#]B-^᪶ᑁᦪ_᪶᜜ᵯᦪ`aḄᐵcL#⚪Ḅᐵd.12.3ᑖef⏚hḄi#R᝞⊤ᡠlᑡᨵᐵopABḄLqesR/࠷2030405060i#R/g/100gve31.645.863.985.5110A.20࠷wxyᡂ25g35%Ḅf⏚h⛳_i|B.30࠷_50࠷w}~Ḅf⏚h⛳_i|ᡠvḄὅᜧὅC.400cw50gf⏚h⛳_i|s20࠷,᪆Ḅ~32.3gD.60࠷w50gf⏚h⛳_i|^iiᑺḄ~11&21ூᑖ᪆௃A.20࠷wf⏚hḄi#Rᑖ᪆B.30࠷_50࠷0f⏚hḄi#Rᑖ᪆C.40࠷_20࠷wf⏚hḄi#Rᑖ᪆D.60࠷wf⏚hi#Rᑖ᪆஺ூ#$௃#&A.20࠷wf⏚hḄi#R31.6g,ᑣ20࠷wf⏚h⛳_i|Ḅi~ᑖᦪ__X100%24.0%,ᑣ20࠷wSxyᡂ25g35%Ḅf⏚h⛳_i100g+31.6g|ᦑA┯:

15B.30࠷f⏚hḄi#R45.5g,50࠷wf⏚hḄi#R85.5g,ᑣ30࠷_50࠷w}~Ḅf⏚h⛳_i|ᡠvḄὅᜧὅᦑBABC.40࠷wf⏚hḄi#R63.9g,50gf⏚h⛳_i|^f⏚hḄ~50gX—¡〈+X100%F9.5g,vḄ~50g-19.5g=30.5g,20Cwf⏚hḄi#100g+63.9gR31.6g,30.5gv^i#f⏚hḄ~3L6gx30.5gp9.6g,ᡠ«40࠷w100g50gf⏚h⛳_i|s20࠷,᪆Ḅ~20.9g,ᦑC┯:D.60°Cwf⏚hi#R110g,ᑣ60࠷w50gf⏚h⛳_i|^iiᑺḄ~110g&100g=ll&10,ᦑD┯:ᦑ⌱&BoூMN௃⚪°⌕ὃVi#RḄ²ᵨ°⌕Lᑭᵨi#RḄ0[ᩭᑖ᪆_#¶ᨵᐵ·⚪,.ᔠᔜº☢Ḅᩩ½¾AB.¿஺13.q3ᑖelᑡᐵÀÁḄ78ABḄLqeA.ÃÄÅ|Ḅyᑴx«ᙠÈÉᘤ^B.ËᑴÌᢙῖ⇨ÐÑÈᑴÌÒC.ᵨFeSO4i|ஹCu_Ag×,ᱥx«ÙÚFeஹCuஹAg×,ÀÁḄÛÜឋÒÞßàD.ÈᑴÌX┤âXḄÈ┤L+,ãäÅåḄᱥæḄ°⌕ᡂᑖLFe3O4ூᑖ᪆௃Aஹ᪷ÃÄÅ|ḄᡂᑖஹÀÁḄÛÜឋß⊤Ḅ²ᵨᑖ᪆ᑨBஹ᪷ËḄឋᑖ᪆Cஹ᪷ÀÁḄÛÜឋß⊤Ḅ²ᵨᑖ᪆ᑨDஹ᪷È┤Ḅ°⌕ᡂᑖᑖ᪆.ூ#$௃#&AஹÈḄÛÜឋèÒé⏚èi|ê²Xᡂé⏚ëÈ_èSᙠÈ᫜^yᑴÃÄÅ|ᦑA┯:BஹᵫËíî^ïîê²XᡂðñòḄïᓄËḄↈõᡠ«ËᑴÌᢙῖ⇨ÐÑÈᑴÌÒᦑBAB&C,ᵫCu_AgöSᵨFeSO4i|ê²÷¾ÈèஹøÛùúSÑèஹøḄÛÜឋÒÞᦑC┯:DஹÈᑴÌX┤âXḄÈ┤L+,ãäÅåḄᱥæḄ°⌕ᡂᑖLFe2O3,ᦑD┯:஺ᦑ⌱&Bo

16ூMN௃O⚪°⌕ὃVðÀÁḄᓄWឋûüÀÁÛÜßà⊤Ḅ²ᵨL#$O⚪Ḅý⌕þÿ14.3ᑖᳮ⌕Ḅᓄ.ᑡᳮḄA.⏙!"#$⏒!"Ḅ&B.╅ஹ)ஹ*+,⏚./0ᡂ23#$45+67⏚./80ᡂ23C.9:./0ᡂ,:;#$0ᡂ,:;Ḅ./&9:./D.<⏚,+,⏚./=>3?ᡠA+,⏚./=>3?ḄᱥC&<⏚,ூᑖ᪆௃Aஹ᪷HIឋḄK&LMᑖ᪆ᑨO.Bஹ᪷HPQRS+⏚./0ᡂ23LMᑖ᪆ᑨO.Cஹ9:./⏚+Tᵨ0ᡂ,:;Ḅ././ᱥ⏚:0ᡂᱥ,:;LMᑖ᪆ᑨO.Dஹ᪷H⏚+PQRSஹ<⏚,V./0ᡂ3?LMᑖ᪆ᑨO.ூWX௃WYAஹᏲ!"[⏦!"ḄK&,8^<⏚_V,ᦑ⌱⚗ᳮ┯d஺Bஹ╅ஹ)ஹ*+,⏚./0ᡂ2345+67⏚./80ᡂ23ᦑ⌱⚗ᳮ஺Cஹ9:./0ᡂ,:;[0ᡂ,:;Ḅ./K&9:./᝞CO+2NaOH—2Na2cO3+H2Oᦑ⌱⚗ᳮ┯d஺Dஹ<⏚,+,⏚./=>3?[+,⏚./=>3?ḄᱥCK&<⏚,8^PQRSVᦑ⌱⚗ᳮ┯d஺ᦑ⌱YBoூgh௃i⚪klKᜧnoḄᓄឋCஹ9:./ḄᱯqஹRSḄᓄឋCVrᮣPtᵨWXi⚪Ḅᐵv.15.3ᑖᑡwx.᧜z/!ᓄᐵ{Ḅ溶质质里分数%。஺./|}S஺WᐭY⏚ᵨḄ[,g

17A.20࠷|ᔣ&ḄB.VCḄ╅ᱏC.ᵨ⏀&D.ᔣᨵᓄ╎⏚K⛳:9:ᱏᢗᐭᑮḄ═⏚?Ḅ9KOḄᐭ¡ᐭ⏚?67⏚9ᓄ2A.AB.BC.CD.Dூᑖ᪆௃A.᪷HK⛳:¢ᓄ£⛳:|CCᑖᦪḄ!ᓄᩭᑖ᪆¦B.᪷HRS+⏚Ḅ./ᩭᑖ᪆¦C.᪷H§⏚ḄᑖW¡¨ᩭᑖ᪆¦D.᪷H3Ḅ©ª«ᑴ+®ᓄᑺḄTᵨᩭᑖ᪆஺ூWX௃WYA.ᙠ&±lᔣK⛳:9ᐭC²W᠒᠒´ᑮ⛳:µ᝱C·K¸¹ºW»9CḄCᑖᦪ8·K¸¼ᜧᦑA¦B.VCḄ╅:+Ḅ67⏚./0ᡂḄ23C½0Ḅ¾ᦑB┯d¦C.═⏚ᑖW£¿⏚ஹᓄÀ:3ᵫCÂឤ&Ä^Å./ÆÇ═ᐗÉḄCK!ᦑC┯d¦D.ᔣᨵᓄ)Ḅ9KOᙢᐭ¡ᓄ2½03ḄC/ËKO¼ᜧᦑD┯d஺ᦑ⌱YAoூgh௃ᙠWXÍÎ⚪Ï|✌ᐜ⌕ᑖ᪆./ḄÒᳮᯠÇ᪷HᡠÔḄÕ⚪Ö×ØÙᐵÚÛÜᔠᡠḄÙᐵÅÞ:ᢈὶ{áᩭâãᙢäåஹᳮÇᢥ᯿⚪Ï⌕èLM⌱éᡈWXᓽ^஺ஹìí⚪iᜧ⚪ᒹï3ð⚪ᐳ18ᑖ஺òóᔜ⚪ḄXᫀìᑏᙠX⚪ᓱø16.6ᑖ17ᓄ2&S᧕þ;Ḅ3?ÿ
Ḅ⏚⌱ᵨpH஺2ᓄ⏚ᡂஹᓄ!஺ᙠ#$%ᡠᨵ(ᱥ*ᐗ,Ḅᓄᔠ.ᐳᨵ41஺ᓄᙠ23%456ᐰ58ᡂᓄ!஺#9ᓰ5Ḅᓄ;<=>?2H2S+3O?'"*"-2502+2L0஺3ᓄMNᵨᩭPᶭR⏚STUVᵨᓄ;WXYZ[\R⏚%Ḅ]⏚ᓄM^%!ᡂ_ᓄM!`ᑏb^Ḅᓄ;<=>cA1OH3+3HC19AICI3+3H2O஺ூᑖ᪆௃1⏚Ḅl⌱ᵨpHᡈpHnopqr;

18(2)᪷wᓄᔠ.ḄnxᑏḄ[ᑣᑏᓄ58Ḅ<=>ᓽ(3)R⏚%(ᨵ]⏚]⏚!ᓄMᡂ_ᓄM!ூY௃Yc(1)rᙠl⏚ᵨpH(2)ᓄ%ᐗ,Ḅᓄᔠ.-2,⏚%ᐗ,Ḅᓄᔠ.+6,%ᐗ,Ḅᓄᔠ.0,ᓄ%ᐗ,Ḅᓄᔠ.+4,ᐳ1ᓄᔠ.ᓄᙠ23%456ᐰᓰ558ᡂᓄ!ᓄ;<=>c2H2S+3O2'2so2+2&0;(3)R⏚%(ᨵ]⏚]⏚!ᓄMᡂ_ᓄM!ᓄ;<=>cA1(OH)3+3HC1-A1C1+3HO32ᦑᫀc(1)pHᓰ5(2)42H2S+3O2-2so2+20(3)R⏚%Ḅ]⏚ᓄM^%!ᡂ_ᓄM!Al(OH)3+3HC1-A1C1+3H0O32ூ4௃⚪?9⍝ẠWXὃ⚪4ὃ⏚Ḅl<=>ᑏḄᨵᐵ¢⚪Y£Ḅᐵ¤?¥<=>Ḅᑖ᪆ᑏ஺17.(6ᑖ)Uᵨᓄ;ᵨ¨©ª%Ḅ«ᑡ¢⚪஺(1)®Ḅ¯°ᑗ²³\´µ¶·¸ᓄ¹º»¼½´µ¶·Ḅ¾¿?Fe?+஺(2)ÂÃ]\(´Ä⏚Å(NaNCh)ÉᨵÊ´Ä⏚Å%Ëᐗ,Ḅᓄᔠ.3Ì2_஺(3)ÎÏ;ᙠÐÑÒᳮÔÕ^Ö9×᪗ÙÚÛÜᨵÝ⁐Ḅᑺ×(᝞á)Vâã#1ᑺ?Na2coÂᡈNa2sOq஺(4)ᵨ(æçᡭḄÔᱥPᶭR⏚STḄᓄ;<=>NaHCCh+HCl=NaCl+HzO+COஹt஺ூᑖ᪆௃(1)¶·Ḅ⊤í

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ᑖ᪆஺ூ௃(1)Ḅ⊤ᙠ⊤Ḅᐗ᪗ᡠ!Ḅ"#ᵯ₹ᦪᦪ'ᙠ("#ᙠ)!1*ᵯ₹+1⌕ḕᶍ஺/01⊤2Fe2+»(2)ᵫᓄᔠ;Ḅ⊤ᙠᐗḄᵨ"#=ᦪ'⊤"#ᙠ(ᦪ'ᙠ+3)ᦑ/@⏚BCDᐗḄᓄᔠ;E+3;1⊤2Na0oN2(3)ᵫ᪗KᑁMNᑺPQ⏚B1RPS⏚BᡈU⏚BVᐸᓄXY2Na2c03ᡈNa2so4஺(4)]^ᡭ`a⏚bcdᡂfᓄBஹh=ijᓄSbcḄᓄXkY2NaHCO+HCl3-NaCl+HO+COt«22ᦑᫀ2(1)Fe2+t+3(2)Na1஺2(3)Na2cO3ᡈNa2so4t(4)NaHC0+HCl=NaCl+HO+COt»322ூvw௃x⚪z{|ᜧ~ᓄXᵨ(ᓄXYஹᓄᔠ;ஹᓄXkYஹV)Ḅᑏஹ`ᓄᔠ;⊤ḄVP"⚪Ḅᐵ஺18.(6ᑖ)ᙠa⏚=jᓄBbcḄkC᝞Pᑭᵨᦪ'ᓄᘤᑮḄpHᓄ.(1)bcḄᓄXkY2Na0H+HCl=NaCl+H2஺t(2)ᕈCឋ+ᡠ¡ὑjᓄBḄ£¤P10mLt(3)CbvᡠC¨ᨵḄªPNaOH=NaClt(4)«¬ὅ£®ᔠ+¯°±²ᵨkY⊤Na2CCh+2HCl-2NaCl+H2O+CO?

20bpHn.r01020NaOHµḄ£¤/mLூᑖ᪆௃(1)᪷·jᓄB=a⏚bcdᡂfᓄB=hᑏt(2)᪷·Pᑖ᪆t(3)bv+pH>7,E¸ឋjᓄB¹t(4)᪷·«¬ὅ£®ᔠ+¯°±²1RPjᓄBª.ூ௃(1)jᓄB=a⏚bcdᡂfᓄB=hᓄXkY2NaOH+HCI=NaCl+HOt2(2)ᵫᕈCឋ+pH=7,+ᡠ¡ὑjᓄBḄ£¤P10mlt(3)bv+pH>7,E¸ឋjᓄB¹¨ᨵḄªPNaOH=NaClt(4)«¬ὅ£®ᔠ+¯°±²1RPjᓄBªdᡂS⏚BS⏚B=ºa⏚bcdᡂfᓄBஹh=ijᓄSbcḄᓄXkY2NaCO3+2HCl=2NaCl+HO+CO222t.ᦑᫀ2(1)NaOH+HClNaCl+HOt2(2)10t(3)NaOH=NaClt(4)NaCO+2HCl—2NaCl+HO+COt.2322ூvw௃»"ᑖ᪆P"¼x⚪Ḅᐵ.ὃ¾Xd᪷·bc¿ᳮᑏᓄXkYḄRÁᓄXkYᑏ¯Ḅ┯Äᨵ|ᔠÅÆÇÈஹ|⍳ʪ¹ÊឤÌÍஹ|ᑏᩩÏஹ|᪗V.Ðஹ(xᜧ⚪ᒹÒ1]⚪ᐳ10ᑖ)19.(10ᑖ)AஹBஹCஹDஹEஹFஹGஹH=ᵬஹÕᙳ2×CᓄXᱥªᐸCAஹBஹFஹGஹHPjᓄᱥCஹDஹE=ÕPᓫªAஹBᙠÚÛP£F=ÕPÜ⁐Þ£ßàáâḄãᓄᐵä᝞ᡠ(bcᩩÏஹåᑖbcᱥ=dᡂᱥæᶍç).èéᡂêÛë⚪:

21+ᵬfD*E(1)ᑏḄᓄXYᑖ2Aî஺2ஹÕC.(2)EfDḄᓄXkY2Fe+2HCl=FeC"+H2t,ᐸbcôPõᣚbc.টᔡùḄᓄXkY24co+Fe2úû-3Fe+4c.ூᑖ᪆௃᪷·⚪üCḄýþ1ÿᵫ“AஹBᙠ”᪾ὅᑖ᪷“FஹGஹHᓄᱥCஹDஹE(ᓫ*”“F(+⁐-”F.ᓄ/0ᡈᓄ23(453A6ᡂBC,C4(ᙠ:;Ḅᩩ>?@ABCC.ᵫEB6ᡂCஹD,FGEHᵬᱥ*?@6ᡂD,ᑣDKCᑣE0,ᑣFL4.ᓄ/03M4ᓄ2.ᵫEGᓄNHOᓄNᑣটOᓄNH.ᓄ/0Ḅ?@Qᔜ⚗TᐭVWWXᔲZᔠ⚪].ூ_`௃_b⚪cdef⚪ghḄiẚk“AஹBᙠF(+⁐-”“AஹBஹFஹGஹHᓄᱥCஹDஹE(ᓫ*”lᔠ⚪ghḄ᪾ᑣAஹBᑖF.ᓄ/03(453A6ᡂBC,C4(ᙠ:;Ḅᩩ>?@ABCCB6ᡂCஹD,FGEHᵬᱥ*?@6ᡂD,ᑣDKCᑣE0ᑣFL4.ᓄ/0GᓄNHOᓄNᑣটOᓄNH.ᓄ/0Ḅ?@TᐭVWZᔠ⚪].(1)cdpᑏᓄrsAᦑH2O2BᦑH2஺(5ᦑC(2)E-DḄyz◤⌕}yEᵬḄ?@ᓽ0⏚Ḅ?@ᦑᓄrzsFe+2HC1=FeCl+Ht?@Zᔠ“ᓫ+ᓄ=ᓫ+ᓄ”Ḅᱯ:ᡠᣚ?@22টḄ?@OᓄNH.ᓄ/0Ḅ?@ᦑᓄrzs-Q-jB4co+Fe3C)4ᔣ]3Fe+4cCh.ᦑ`ᫀ(1)H2O2;C(2)Fe+2HCl=FeCl+Ht(ᡈFe+H2so4);ᣚ?@4co+Fe3()4ᔣ]3Fe+4c22ூ:௃ᙠ_⚪✌ᐜ⚪hᨵᱯḄᱥ*fᯠlᔠfḄᱥ*⚪hḄ

22¡ᓄᐵ£¤ᒕ¦Ḅᱥ*ᨬfḄᔜ¨ᱥ*Tᐭ¡ᓄᐵ£h©ªWXᓽ..ஹ«¬⚪ᒹ®1¯⚪ᐳ12ᑖ±20.«12ᑖ±³´rᵨ᝞·©ªᨵᐵN¸ᐸᓄᱥḄºW«hᜳᢝ½ᶍ¿±ᙠÀᡂCÁឋVÃÄᐭÅÆǽᙠ·hᐙÉᓄN.ᴻᩈ"#$%ᓄ&'CChOÊIO«1±Ìᑏ⊤ÎhḄÏÐᑁÒºWÓÔºWÕÖºWᑖ᪆জÙÙÚᐭCO2,:;ᩈ5ÜÝÞDhᨵCßà6ஹáâ*ãᴻåhæ6?@ḄᓄrAᜐ⏀éêëÄìOíîᮞðñòóîᮞôõözsc+CQ“÷—28úû¤Cå©ᐭEঝ:;Bᜐ⏀éêëBᜐãᴻåᑁý⁐Üþð+⁐ÿ
ᓄᐹᨵឋঞᐭᓄCᨵDᐭC!"#DḄ᎔ᰐ'AஹB+ᜐḄ-ᯚᔾ_123ᨵ456789:◤⌕=>ᜐᳮ9:@67Aᔲ◤⌕CᳮᵫE◤⌕FGHḄCOᐭD9:EJ⍎ᦣᑮN.ᔡQ133ᑏTBᜐUᴻWḄᓄ5GHXYZ3co+Fe2C>3ᔣ]2Fe+3cO2.ூᑖ᪆௃113জ᪷hᓄiᡂᓄklᩈno"pqrḄᓄstuᮞwxyz4D9:{ᐭ|ᨵGHḄ!TD9:ᐭE~ᓄiᡂᓄᓄᓄGHiᡂᓄᑖ᪆~ঝ᪷hᓄᓄiᡂᓄklBᜐ⁐ox⁐ᓄᜫx7ᑖ᪆~ঞ᪷hᐭᓄᰐ'AஹB+ᜐḄ-ᯚC!"#DḄ᎔ᔾᑖ᪆~

23123᪷h9:ḄᱯᓄEJᐭᑮNᑖ᪆Aᔲ=>ᜐᳮ9:ᑖ᪆133᪷hᓄᓄᙠḄᩩiᡂᓄᑖ᪆.ூ௃113জAᜐ⏀ᓄiᡂᓄklᩈno"pGHiḄᓄᒕḄᓄᐭDᓄstuᮞwxyz4D9:{ᐭ|ᨵGHḄ!TD9:ᐭE~ᓄiᡂᓄᓄᓄGHiᡂᓄᓄ5XYZ73co+Fe2C>3ᔣ2Fe+3c஺2~ঝBᜐ⏀¡☢ᓄiᡂᓄᓄᓄGHiᡂᓄklBᜐ⁐ox7⁐ᓄᐹᨵឋGHḄᓄ5XYZ73CO+FeO.r2Fe+3CO;22ঞᐭᓄᰐ'AஹB+ᜐḄ-ᯚC!"#DḄ᎔ᔾ~12389:E◤⌕=>ᜐᳮ9:k7qrᓄ¤ᦈ¦ᙠDC|ᨵ᣸¨ᑮNEJ⌼ᡂª«~133ᓄᓄᙠḄᩩiᡂᓄᓄ5XYZ7-o-jB3CO+FeO3m2Fe+3CO.22ᦑᫀ7113¯°±²ᑖ᪆জ³³ᐭCO?,Aᩈno"pDᨵ¶ஹu·¸UᴻW¹iGHᓄ5XYZᜐ⏀.ᮞwxyzºuᮞw»¼½7c+C஺-2co¿WᐭEঝBᜐ⏀BᜐUᴻWᑁ⁐ox7ÁÂ
ᓄᐹᨵ.⁐ឋ.ঞᐭᓄᰐ'CT±C!"#DḄ᎔ᔾAஹB+ᜐ⏀.123E◤⌕FGHḄCOᐭD9:EJ⍎ᦣᑮN~Ã*Å1333co+Fe2133ᔣ2Fe+3c஺2.ூÆ௃Ç⚪A⍝
ḄÊᔠ⚪⚪ḄᐵÍAÎÏᐵᱥ¸ឋ¸Ḅᑖ᪆Ñ᜜⚪
ḄÓᐵͱ²ÔÕÕA⚪ḄÖ⌕×ẚÙ4ὃÛÜᨵÝÎÞ᛻Ḅª«.

24àஹ1Ç⚪ᒹâ2#⚪ᐳ15ᑖ321.5ᑖ3᝞å7XX┛ᱏᖪé᪗ëåì᪷h᪗ëḄᨵᐵíîïᡂᑡᔜ⚪.1
ᐸó⌕ᡂᑖ⏚┛ᵫõöᐗøùᡂ.2
⏚┛┛ஹஹᐗøḄ¸rú710312.13
ûᱏ┛ᱏüpý┛ᐗø0.6g.XXþÿᕨ
ᱏ50ᱏI⇼j┛Bᦔ⊡┛2g/ᱏᱏ⏚┛1.5gD100IUᵨ!""#1ᱏூᑖ᪆௃1
᪷)ᓄ+,Ḅ./ᩭᑖ᪆12
ᑭᵨ⏚┛Ḅᓄ+,3456789ᩭ:;ᐗḄ89=13
᪷)“XX”┛ᱏᖪ?᪗ABCᱏDE⏚┛1.5g,ᵫᓄᔠᱥIᐗḄ89=KᓄᔠᱥḄ89XKᐗḄ89ᑖᦪCMNᑖ᪆OP.ூOP௃O1
⏚┛Ḅᓄ+,RSCTUᵫ┛ஹஹWXᐗYᡂḄ1ᦑ\;2
ᵫ⏚┛Ḅᓄ+,^CaCChCᑣ┛ஹஹWᐗḄ89=^401216X3
=401248=103121ᦑ\1031213
᪷)“XX”┛ᱏᖪ?᪗ABCᱏDE⏚┛1.5g,ᱏDE┛ᐗḄ89^1.5gX`=0.6g1ᦑ\0.6.100ூab௃c⚪efgᜧCὃjk+lmᔠ᪗Anopஹᮣrsᵨᓄ+,Ḅᨵᐵ:;MNᑖ᪆v⚪ஹOwv⚪Ḅxy.22.10ᑖᔣ{ᨵ10g|}᪵?ᨵE9ᓄḄᐭ⏚஺ᐭ60g⏚Cាᐰ஺ᑁᱥ889^66.7g஺1
KᡂWᓄḄ89^3.3212
K|}᪵?⏚89ᑖᦪᑏ:;஺ூᑖ᪆௃1᪷)⏚⏚Ḅ389ឤᡂWᓄḄ89;2
᪷)⏚⏚ḄḄ!,CᵫWᓄḄ89᪵?⏚Ḅ89,ᨬ|}᪵?⏚89ᑖᦪ஺

25ூOP௃O(1)ᵫ⏚⏚Ḅ¡Wᓄ¢£Cᵫ89ឤRS,ᑁᱥ8¤EḄ89¥UᡂḄWᓄḄ89^10g+60g-66.7g=3.3g1(2)¦|}᪵?⏚Ḅ89^x,NaCO+2HCl=2NaCl+HO+COt232210644x3.3gO§x=7.95g443.3g|}᪵?⏚89ᑖᦪ^9sx100%=79.5%110gP|}᪵?⏚89ᑖᦪ79.5%஺ᦑP^:(1)3.31(2)79.5%oூab௃c⚪©:;Ḅª,ὃj«⏚⏚ḄC⌕:;ᡂḄWᓄḄ89,◤᪷)89ឤCefgᜧ