2017-2021年广东中考化学真题分类汇编之科学探究题

2017-2021年广东中考化学真题分类汇编之科学探究题

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152017-2021¡¢rὃᓄ#¤⚪ᑖ¥¦§¨#©ª⚪«ὃᫀ_}⚪᪆®.BC©ª⚪ᐳ17n⚪1.2021•¡±MḼ³´fµḄ¶·9f¥¸¹sº◤¼½¶ᜧ9¶¿ᓄÀ⌲Âᡂ'¹eᱥ¶sḄᨬᨵÆÇ¿஺NH4HCO3ஹNH4஺ஹK2so4ஹKC1È[vḄᓄÀ஺1ᓄÀ^'¹eᱥ⊡ᐙḄ⃩ÌᐗÎÏ⌕ᨵÑÒ9ÓÔᓄÀÕᨵḄÖÒ⃩ÌᐗÎN^K஺2ᨵ®ᒹᵨᒕḄÀᧇ9L^ÕᨵÓÔÙÒᓄÀrḄ®ÒᡈÚÒ9'ÛÜᐸᡂᑖ9Þ᝞]BCxa.ß½Àᧇ᪵º<Ẇâr9ᐭß½äåᮞçᔠẆé9ᨵêëឋ!ᕡ஺b.ß½Àᧇ᪵º?〉A-ᧇBCDᐙᑖFGHIJKឋMᕡᨵᒕPQRᑣ,-ᧇḄᡂᑖTNH4C1ஹKC1஺GHIJKឋMᕡVᨵᒕPQRᑣ,-ᧇḄᡂᑖNH4cl஺ூὃY௃[\ᱥ^Ḅ_ᡂᡂᑖ`aAbcdᓄ-Ḅef8ᵨb╆᝱j-Ḅk.ூm⚪௃op[\.ூᑖ᪆௃1ᓄ-rs8ᱥ⊡ᐙḄ⃩vᐗxy⌕ᨵzeᓽjᐗxஹᐗx|ᐗx஺

162a.?}A-ᧇ᪵BẆFᐭ}AᮞᔠẆᨵJKឋMᕡ᪵ᨵ᪶᝱j-ᓽᨵᓄ╆ஹ⏚᪶Ḅeᡈebc.?}AABCDFAgN03ᨵ⁐HI᪵ᨵ,ᓽᨵᓄ╄ஹᓄᡈᓄ╄ᓄbd.?}AABCDFBaC12;<᪵ᨵ⏚6e.?}AABCDF⏚;<᪵ᨵ⏚bFTᓄᑖIᡂMᓄᓄᑖ஺ூ¡௃61ᓄ-rs8ᱥ⊡ᐙḄ⃩vᐗxy⌕ᨵzeᓽjᐗxஹᐗx|ᐗx¢£ᓄ-ᨵḄe⃩vᐗxNஹKoᦑ6NஹKo2a.?}A-ᧇ᪵BẆFᐭ}AᮞᔠẆᨵJKឋMᕡ᪵ᨵ╄᝱j-ᓽᨵᓄ╄ஹ⏚᪶Ḅeᡈebc.?}AABCDFAgNO3ᨵ⁐HI᪵ᨵ,ᓽᨵᓄ¥ஹᓄᡈᓄᓄbd.?}AABCDFBaCb;<᪵ᨵ⏚be.?}AABCDF⏚;<᪵ᨵ⏚bজᑖ᪆¢£§¨ᐵB,-ᧇḄᡂᑖ`ªᑮḄ>6ᨵ⏚⏚┤ᨵᓄ╆ᨵᓄ.ᦑ6ᨵ⏚⏚᪶ᨵᓄ╆ᨵᓄ஺ঝae⌕Ḅ⚗c,rᓽ®¯ᣵc)±²§)±`ᑨ´µ᪵ᨵᓄ╆஺ᦑ6c஺ঞ§¨678⚜:;<=>?〉A-ᧇBCDᐙᑖFTGHIJKឋMᕡᨵᒕPQRᑣ,-ᧇḄᡂᑖNH4CKKChGHIJKឋMᕡVᨵᒕPQRᑣ,-ᧇḄᡂᑖNH4C1஺ᦑ6?〉A-ᧇBCDᐙᑖFTbHIJKឋMᕡᨵᒕPQRbNH4C1ஹKC1!

17GHIJKឋMᕡVᨵᒕPQRᑣ,-ᧇḄᡂᑖNH4C1஺ூY»௃¼⚪y⌕ὃ½ᱥ^Ḅឋ^¡⌕᪷¿ᔜeᱥ^Ḅឋ^>ᔠᔜ'☢ᩩÃᑖ᪆ஹᑨ´ÄŪµÆ*Ḅ>஺2.2021•Êᙥ"ᵨ᝞ÍᡠÏÐÑ61"ÒÐÑ8ᵨÓÔᓄÕᓄᡂÖÔᓄ■ØÙÚÛ᛻b2"᝞ÝÞßᮞàáâãᵬåIæçḄᓄp'¨èrFe203+3COᔣï2Fe+3c02b3"[\æçñᵬò⁐QRᡂᑖ஺456Fe3O4=CuSO4æç஺õö6ò⁐QRᡂᑖrFebõöÖ6ò⁐QRᡂᑖrFe3O4bõöz6ò⁐QRᡂᑖrFeஹFe3O4஺)±6FT/S²ᐭCO/s᪵9030A9090B18090Cᔣ᪵AஹBஹCᑖᐭCuSO4஺᪵A!"#$%&'Bᨵ)⁐+,᪆./ᨵ01⁐$%4&'+,ᒕ3Cᨵ)⁐+,᪆./!1⁐$%5&'+,ᒕ3G²ᐭCO÷r90s,⌕ªᑮú¥ûᑣFT÷180So

18ᵬBCூὃ9௃;<=>ᱥ@ḄBᡂᡂᑖDEFGHIḄᓄKឋ@G5MᓄNOPMᓄQ.ூS⚪௃UK=>.ூᑖ᪆௃(1)5MᓄNᨵX/YZ[ᡂMᓄN஺(2)]^ᩩ`aMᓄQb5MᓄNcd[ᡂQbMᓄN/MᓄNefghiᮞklmn஺(3)1⁐+,ᡂᑖpeqFeGtpeqFe3O4GtpeqFeஹFe3C>4஺Qbv⏚xcd[ᡂv⏚yQbx஺ூz{௃z(1)|}~ᵨ5MᓄNᓄᡂMᓄN/■᛻஺ᦑ5MᓄNᓄᡂMᓄN/■᛻஺(2)᝞ghiᮞklmn/ᵬ]^ᩩ`aMᓄQb5MᓄNcd[ᡂQbMᓄN/[cdḄᓄKqFe2O3+3COᔣ‘F2Fe+3c02஺*ᦑFe2O3+3CO-F2Fe+3c02஺(3)$%51⁐+,ᡂᑖqFeG$%1⁐+,ᡂᑖqFe3O4G$%41⁐+,ᡂᑖqFeஹFe04o3ᦑ1⁐+,ᡂᑖqFeஹFej04«᪵A!"#/"1⁐+,$%&'Mᓄ4QBᨵ)⁐+,᪆./ᨵ01⁐$%4&'

19+,ᒕ3/"+,FᨵQbMᓄ4QCᨵ)⁐+,᪆./!1⁐+,$%5&'ᒕ3ᐭCOq90s,⌕¤ᑮ¦Q§/ᑣ©180s,ªq©180sMᓄQ«ᐰᓄᡂQ஺ᦑ$%G$%4Gᨵ)⁐+,᪆.G$%5G180஺ூ9௃®⚪¯⌕ὃ°ᱥ@Ḅឋ@/z{⌕᪷²ᔜ´ᱥ@Ḅឋ@/ᔠᔜ☢ᩩ`·¸ᑖ᪆ஹᑨº/»¼¤.&'Ḅ஺3.½2021•¿ÀÁÂᐶÄÅB=>╅ÇÈÉ⏚Ḅcd஺½1Á╅ÇÈÉ⏚cdḄᓄKqMt+2HC1-M&C12+H2t஺½2Á;<Ï/ᵨṺÑᡭÓ╅ᩩḄÔḄ◀Ö⊤☢ḄMᓄᱥ஺½3ÁØᡭÓÙḄ╅ᩩÚᐭÈÉ⏚/5ÛÙᨵ“ᮞÝ⁐Þß”á[Ḅâã஺ூä.å⚪௃ᮞÝ⁐ÞßpeFᨵæçᱥ@èூ°▅êᧇ௃Mg½OHÁ2í©ᑖz[ᡂMgObH2OGl⁐ấï⍗kᵫò⁐lq§)⁐;ôõᓄ╅öMg½OHÁCløùúk/í©᧕ᑖz[ᡂMgObHC1ü,஺ூä.Ꮇþ௃ᵬÿᮞ⁐MgC12,ᓄ╅᧕஺ᮞ⁐ᨵ"#$I"Mg#$n"Mg(OH+Cl#$in"Mg(OH+2ூ/012௃4ᮞ⁐56ஹ89:;ᑖ=>?@জঝঞḄEF஺G@/0HI/0JK/0LM/01ᔣEFজOᐭ〉R[ᜫ]^_`a#$IᡂcST⏚(VᱥXYZ+/02OdEFঝ;e4↾klᩩop#$nᡂcᨵg⁐hiEjḄklᩩ>EFn

20/03OdEFঞ;4`ao⁐ấrᵫt⁐#$H1ᡂcḄ^uvwo⁐ấroxp⁐ூyMᑖ᪆௃/02klᩩopᵫHCI^u{jᕈ⏚ឋ,aᡂHC1^uḄMgOHC1~MgO+HClf(ᵨᓄ⊤+஺ூὃ௃/012ᱥXḄᡂᡂᑖRḄᓄឋXḄᓄឋX.ூ⚪௃12.ூᑖ᪆௃(1╅ST⏚aᡂᓄ╅^஺(2╅ḄᓄឋX;^Ḅ^aᡂᓄ╅;⌚ᙠ⊤☢஺(3ᓄ╅᧕஺T⏚¡⏚ឋ;{hiEjop⁐஺Od¢MgOHClᑖ£aᡂMgOHCI஺ூ£¤௃£"(1╅ST⏚aᡂᓄ╅^;Ḅᓄ"Mg+2HC1—MgCh+H2toᦑV"Mg+2HCl=MgCh+H2t»(2╅ḄᓄឋX;^Ḅ^aᡂᓄ╅;⌚ᙠ⊤☢;/0¦,ᵨṺlᡭ©╅ᩩḄªḄ◀¬⊤☢Ḅᓄᱥ஺ᦑV"◀¬⊤☢Ḅᓄᱥ஺3ூ®Ꮇ°௃ᵬᮞ⁐MgC12,ᓄ╅᧕஺ᦑV"ᓄ╅᧕஺ூ/012௃G@/0HI/0JK/0LM/01ᔣEFজOᐭ〉R[ᜫ]^_`#$IᡂcST⏚a;²³´uᨵ╅/02OdEFঝ;e4↾klᩩop;#$nᡂcᨵg⁐hiEjḄkaᡂḄᓄlᩩ>EFnµᡂT⏚;T⏚

21{hiEjop⁐/03OdEFঞ;4`ao⁐ấrᵫt⁐o#$HIᡂcḄ^uvwo⁐ấrxp⁐;²³aᡂᦑV"ST⏚ᡂcᵫt⁐oxp⁐஺ூyMᑖ᪆௃/02klᩩopᵫHC1^u{jᕈ⏚ឋ;aᡂHC1^uḄ"Od¢MgOHClᑖ£aᡂMgOHCLḄᓄ"MgOHClMgO+HClᦑV"⏚Mg(OH)Cl~MgO+HClt஺ூ¶௃·⚪¸⌕ὃºᱥXḄឋX;£¤¢⌕᪷¼ᔜ¾ᱥXḄឋX;Lᔠᔜ☢ᩩÀÁÂᑖ᪆ஹᑨÄ;ÅÆÇ®ÈÉḄLM஺4.2019•Ëᙥ+12ÍᛛᧇḄᡂᐗÑ;°ÒÓ/0IH.Ô¤Õᑡ×⚪:I,ᑴÚ^(1+Ûᵨܾᨩg⁐´uᑴÚ02,ÞaḄᓄ2KMnCMK2MnO4+MnO2+O2t,Þaß>⌱áâãß>A(V᪗@+஺2åᑴÚ89Ḅ02,ß>ᔠᳮḄçèéG"Þaß>ÜCfF(V᪗@+஺çèß>¢;Þaß>Ḅ®^nß>C(V“a”ᡈ"b”+ëìç஺II.ᡂ123íឋîï(ðñ"]CuS04⍗ot⁐+

22/0HI/0JKLMçèß>;îº^óឋ;ßᐭEß>K]CuS04oᛛᧇôõ`ᱥᨵH20ᑺeᢥ᝞ùÁÂ/0஺vᐭ02,জt⁐Üú¢û:;ôJᜐ⏀þÿ஺LঝᮞᛛᧇᱥᨵCO2஺ঞᵫᛛᧇ!ᨵḄᐗ$%HஹC((ᐗ$)*)஺(4),-./012ᡂ41.4gᛛᧇᙠ6,027ᐰ,ᐳ;<4.4gC0=1.8gH2O,2>?@,AឤCᑨEᛛᧇF!((“!ᨵ”ᡈ“F!”)◀ঞKLM᜜Ḅᐗ$஺ூὃQ௃STᱥ@Ḅ2ᡂᡂᑖVW!,XYZḄᑴ\XYZḄᦈ^_`X@,AឤCWᐸbᵨI.ூd⚪௃fgST.ூᑖ᪆௃ᓄgkb⍳m@,AឤCᓽopkbḄᱥ@Ḅ@,M=qrkbs;ᡂḄᱥ@Ḅ@,M=%t.ᓄgkbusᐗ$ḄvwFxyḄvwஹz{ᦪF஺ூ}~௃}(1)ᵨvᨩ⁐ᑴ\02,%ᑭᵨ═⏚ᑴ\YZ;kbḄᓄg_.2KMnCUK2MnO4+MnO2+O2t,;b⌱A஺ᦑ(2KMn04K2MnO4+MnO2+O2tXA஺(2)ᑴ\Ḅ02,ᔠᳮḄ.;C-FX;ḄZbCa஺ᦑ(FXa,(3)K¡CuS04¢⁐%t.kb;ᡂ<Lᮞ%t.kb;ᡂ<£Yᓄ¤¥᝞§ᡠ©:

23«¬®KL¯°Z±ឋᐭ´K¡CuS04ᛛᧇᱥᨵH20ᑺ¾ᢥ᝞À/Á஺Âᐭ02,¢⁐ÃÄsQJᜐ⏀ÈÉ஺LᮞᛛᧇᱥᨵCO2ঞᵫᛛᧇ!ᨵḄᐗ$%HஹC஺ᦑ(HஹCoÍ4ÎkbḄYZ@,4.4g+1.8g-1.4g=4.8g,ᛛᧇYᐗ$@,4.4gXÖX100%+1.8gXØX100%-4.8g=0,ÙÚᛛᧇF!ᨵ4418Yᐗ$஺ᦑ(F!஺ூQÛ௃ᓄgkb⍳m@,AឤCᓽᓄgkbusᐗ$ḄvwFxyḄvwஹz{ᦪFÜ%Ýᑏᓄg_ஹᑨEᱥ@ḄᓄgஹᑨEᓄgß,ᦪஹ/Áᐵ_☢ßâḄãẠ஺5.Í2019•èéÎêᓄgᐶìí2ᵨᮞ=î⏚ᑴ\ïC02,ðs4ᮞ᎔ᐭ^Zïòᨵ஺ᐶìí2óÜ{ôõ®/Á?ᑴAC02,DEFGH஺ᑴᜓC02ḄᓄK4LMCaCO3+2HCl-CaC12+H2O+CO2t஺QR23ST23UVWXYᓄK4LM(1)AZ-[\"ᮞ]^._`ᐭdef⁐h஺Iᡂj஺+⏚bc஺(2)kZ-lmnᐭoᨵ[\"ᮞḄ]c'pqIIᡂj஺^.஺(3)klmnᐭoᨵ⏚rcḄ]def⁐hsᡂj஺tu4L

24^._v`⏚஺MHC1+A&N03—AgCN+HNO3஺ூ23WX௃ᑴAḄC02lm./ᐭwHCLᡠy[\"ᮞzᨵ'pq஺ூ{|}X௃~⌕ᦈᑮஹḄC02,◤k/ᔠlmnᐭ⛳NaHC03c⏚஺ூὃ௃.ᦈlmḄST_K]ᵨ᣸ᦈCO2,᎔ᐭ[\"ᮞ_"ᮞ'pq஺¢£¤23ᡂ¥Ḅ;¦§᣸ᦈ.$¨k©ᓄªlm◀¬ᑏ®஺ூὃ®௃23GHᱥ('ᓄḄᩩ±²³ᱥ('ᓄḄ¦´µ¶·lmḄ¸3¹◀ᩖ4µ»ḄᓄKឋ(µ½ᑏᓄK4LMஹᦻ¿⊤ÁMஹᵯÃ4LM.ூÄ⚪௃ÆKGH.ூᑖ᪆௃᪷Ê⌼ᡂ"ᮞ'pqḄ¦´ஹᱥ(Ḅឋ(yYᱥ(ÌtuḄ23UVEFᑖ᪆ÍÎᓽ஺ூÍÎ௃ÍÐூ௃᪷Ê⚪ÑḄÒÓyÔ_Õ§)*ᓄ+,-Ö×Ḅ_ᦑÙÐ)*ᓄ+,-µூ234ᫀ௃ᑴᜓC02ḄᓄK4LMCaCO3+2HCl—CaC12+H2O+CO2t,ᦑÙÐCaCO3+2HCl=CaCl2+H2O+CO2t஺~§"ᮞ'(_ᑣ`ᐭ+⏚bdef⁐h_ᦑIᡂjḄÛ`ᐭ+⏚bdef⁐h_IIᡂj_ᑣkZ-lmnᐭoᨵ[\"ᮞḄ]^._c'pqµinᡂj_ᑣÜᨵ©ᓄªlm_nᐭ⏚rcᑣdef⁐h_`ᐭ⏚hÍ_ᦑÙÐQR23ST23UVWXYᓄK4LM(1)AZ-[\"ᮞ]^._`ᐭdef⁐h஺Iᡂj஺+⏚bc஺(2)kZ-lmnᐭoᨵ[\"ᮞḄ]c'pqIIᡂj஺^.஺(3)klmnᐭoᨵ⏚rcḄ]^def⁐hinᡂj஺tu4L._v`⏚஺MHCI+AgNO3=

25AgCl\+HN03.ூ{|}X௃~⌕ᦈᑮஹḄC02,◤k/ᔠlmnᐭ⛳NaHCO3c⏚EF◀ᩖ_ᦑÙÐ⏚஺ூὃ௃ᵨ᣸ᦈCO2,᎔ᐭ[\"ᮞ_"ᮞ'pq_¤23ᡂ¥§¦©ᓄª_n,◀¬w©ᓄª_ᦑÙÐ᣸ᦈ.$¨k©ᓄªlm◀¬஺ூ®Ý௃⚪ὃÞḄ§ᓄK234ᫀḄßàḄáâ_%ᡂã⚪_yÊ$ᨵḄáâEF஺6.2021•åæ᪷Ê᝞è.Ḅ23éêÎÐ1ëᘤaḄíî§┵ð஺2ᵨéêAᑴAC02,ᑖcñᧅ.oéḄ<=§ó⏚µᵨéêCᦈCO2,lmuôÖ^õbÙ“b”ᡈ"c”nᐭ஺3ᵨéêBᑴA02,¸Þéêl÷ឋḄST§køᴻÖ^úᐭéᨵḄû._ᵨüᣆþ]^_~Ö^ᨵlÿᑈᡂḄᑣឋḄᓄ!"#$%2KMn04'K2MnO4+MnO2+O2t஺4()!ᙠ!+,-./▅1ᧇ3জ5᩽᧕89ᐸ8;<%5=ঝ5ᙠ?@ᜧᡈCD.᧕ᑖFG5஺IJKᵨMNᮞP?5QRSᑴU5ḄVWXMNᮞPGᜧYD?5CD᧕ᑖFG5=ᑴZḄ5Q[\“Q”ᡈ“Q”_ᵨ`aDᦈc஺ூὃf௃hᵨiḄjM`aPᦈc`ak⌱U"m.ூo⚪௃hqiḄIJKᑴmஹsJஹtukvᓄ.ூᑖ᪆௃[1_᪷yIJKhᵨzᘤḄ|

26[2_᪷yᑖ;ᧅḄᵨ⌶~ᑖ᪆=᪷yᓄḄឋ~ᑖ᪆=[3_᪷ys/`aឋḄ"m~ᑖ᪆=᪷yᱥஹMᡂᱥPᩩᑏᓄ!"#$=[4_᪷y?5CD᧕ᑖFG5~ᑖ᪆=᪷y5Ḅឋ~ᑖ᪆஺ூF௃F3[1_zᘤaḄ|

272ᵨµiäᔠᱥᑴU02,⌱ᵨC`a[⌱\“A”“B”“C”!MnOo3ᵨB`aᑴ0Ḅᓄ!"#$2H2O22H2O+O2t2ᵨ᝞â`aᑴUtuC02i஺4ᑴUtuC02i¡¢aåb[⌱\"b”ᡈ"c”!5ᑏIJKᑴUCO2Ḅᓄ!"#$CaCO3+2HCl=CaC12+H2O+CO2t஺ூὃf௃hᵨiḄjM`aPᦈc`ak⌱U"m=iḄtu[◀_.ூo⚪௃hqiḄIJKᑴmஹsJஹtukvᓄ.ூᑖ᪆௃1᪷yIJKhᵨzᘤḄ|

28Mn09¨ᵨÀMᡂPḄᓄ!"#$%32H2஺2Z2H2O+O2t;(4)ᓄḄ@ᜧᑴUtuCO2i¡¢aåb3(5)IJKhᵨᜧᳮN(ᡈNᮞN)P⏚ᑴUᓄ⏚┛P⏚Mᡂðᓄ┛ஹPᓄḄᓄ!"#$%3CaCO3+2HCI=CaC12+H2O+CO2t஺ᦑᫀ(1)(2)CMn09(3)2H2O22H2O+O2t;(4)b(5)CaCO3+2HCl=CaC12+H2O+CO2toூ"#௃%ὃ"'⌕ὃ)*+ᘤḄ./ஹ12Ḅᑴ4567ᦈ956Ḅ⌱;<=>?ὃ)*ᓄABCDḄEᑏG

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4215.(2016•ð)ñòAᡃôõöḄòᑴøùúûüý᰿ᵫÿNaCKCaONa2co3ᔠᑮḄᔠᱥAᑴḄ஺(1)#ᓄ%ᐶ'()*+,-./ᔠᱥA012345᠒7ᐭ9Ḅ:;<4=7=ᤅ?4☟A4BBC஺জEFGHIJḄᓄ%FKLCaO+H2O=Ca(OH)2,Ca(OH)2+Na2c03=CaC03I+2NaOH஺ঝBC3◀VᨵClஹOH᜜4[VᨵḄ▢]^C032.஺(2)ᙠᔠᱥA37ᐭ/ZnSCHdᦋᗐgh4Eᐶ'()-#᪵g4jkᙠᔠᱥA3ᔲm7n/ZnS04«qrstᫀ4vᡂ᝞⊤⊤z஺▲⌱ᵨg~ᑺ⏚ஹpHஹBaC12Cஹ:;<ஹAgNO3C஺st⚜⌕1./᪵g012345᠒7ᐭ9/:<4ᐙᑖᤅ?4☟A4B2./1ᡠḄBC034ᨵHᡂᔣᐸ37ᐭ9Ḅ⏚4₩4¢£஺஺3ᔣ2IJ¤C3¥ᐭ/¦ᨵ§⁐©ªHᡂ4«¬᪵g3ᨵḄBaC12C4¢£஺ZnSO4¦®¬¯4«¬᪵g3°ᨵZnSO.4ூὃ³௃stjkᱥhḄ)ᡂᡂᑖµ¶VH·ᮞḄឋh~ᵨ⌶Ḅᓄ%ឋh»ᑏᓄ%FKஹᦻ¾⊤¿Kஹᵯ]FK.ூÁ⚪௃Ã%jk.ூᑖ᪆௃(1)জ᪷ÆÇ⌕ᧇLH·ᮞ(CaO)ஹÉÊ(Na2co3)Ë(NaCl),ᵨ<ÌÍÎᑴᡂÏᑖ᪆GHḄIJᨵ<H·ᮞIJHᡂÐÑᓄ┛ÉÊÐÑᓄ┛IJ4HᡂÓ⏚┛ÐÑᓄÔঝᵫ0CaO/4Na2c034ᦑIJ¤Na2c03ᒕØ4BC3ᨵNaOHஹNa2cO3ஹNaCI,ᵫÙᑖ᪆BC3VᨵḄ▢]^஺(2)1ᡠḄC3VᨵCÚஹOH\CO32',ᙠÝtᔲᨵSO42-,CO32Ḅßᙠ

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