2022年山东省滨州市惠民县中考化学二模试卷（附答案详解）

《2022年山东省滨州市惠民县中考化学二模试卷（附答案详解）》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

2022
ḕὃᓄᔁஹᓫ⌱⚪ᜧ⚪ᐳ16⚪ᐳ48.0ᑖ1.Ḅ"ᑡ$%&'ᓄ(ᓄḄ)A.ℍ⃔,-ᡂℍ⃔-B.ℍ⃔/ᡂℍ⃔0C.ℍ⃔1ᡂℍ⃔⏀D.ℍ⃔ῃ42.5)6Ḅ78)9:ᨬ<=Ḅ>7஺ᐵ'5ḄᜩᯠCDḄEFGHḄ))জ5ᙠᜩᯠCDKLM$N5ḄOPQᓄঝ5ḄᜩᯠCD)SK5ḄT᝱(ᓄM$Ḅঞ5ḄᜩᯠCDWᙢᳫZḄᱥ⊡ᐙ^5>7ট5ḄᜩᯠCD)Oᯠ`5ᑖabcḄdeA.জঝঞB.জঝটC.ঝঞটD.জঝঞট3.fḄMhij)MhᡂkḄlmn"ᑡMhijGHḄ)oᵨqrst6050C.40»vowrxyz304.6ᨴ5})~`D᛻}Ḅ⚪)“ᐵ᰿Oᯠ”஺"ᑡFᔠ⚪Ḅ)A.☄ᜩB.ᓫᏉDmC.ᚗᑖ:⁚>7D.₝ᓄ¡¢

15.ᑖ:Fᙠ}¥¦§Ẇ©ᐹᨵ¬Ḅ®ᵨ¯"ᱥ°Ḅᑖ:┯²Ḅ)A.´µஹ¶µ·ᨵᵫᐗº»ᡂḄ&'ᓫ°B.½⏚´╆ஹℍ⃔ÀḄ»ᡂ·Áᨵ½ᐗº·&'ᨵÂᱥC.Ã⏚Äஹŵ·)ᵫÆᐗº»ᡂḄ&'ᓄᔠᱥD.ÈÉஹÊËÌz·)ᵫÆᱥ°»ᡂḄ&'Íᔠᱥ6.}¥ᡃÐÑ¥ÒᵨÓḂᩭÖ×⊟ᱥÓḂḄ⌕ᡂᑖ)Úᾦ⏚ÜCHCOONao"ᑡᨵᐵÚᾦ⏚ÜḄEFGHḄ)1735A.æçèZéêÚᾦ⏚ÜÁᨵ18ì½íaஹ35ì´íaஹ2ìïía¦1ìÜíaB.æðèZéêÚᾦ⏚Üᑖa)ᵫ½ஹ´ஹïஹÜñᐗº»ᡂC.æᑖ:ZéêÚᾦ⏚Ü&'ᓄᔠᱥD.æ°vZéêÚᾦ⏚ܽஹïᐗºḄ°vòW9ê17.ᩞᧇ)ö÷øùḄ᪗û஺"ᑡᐵ'ᩞᧇḄEF┯²Ḅ)A.ᛛᧇ&'ᨵÂᔠᡂýᑖaᩞᧇB.þᴻ
ấ⏚ᩞᧇC.ᑴ⌼ᱏḄấ
ᩞᧇD.╅ᔠ
ᔠᩞᧇ8.ᑡḄᓄᑏ!"Ḅ#$%A.'(ᓄ)*+,-./01232NaOH+C0=NaCO+H02232B.?@ABCᮞCᑴE1CᮞCaC03=CaO+C0T2C.G⏚H◀J┑┤MᨵOPQ12Fe+6HC1=3FeCl+3HT32D.╅ᩩᙠZO[\]./01(ᓄMg+Oz=MgO29.ᓄbcdefgdhᱥḄQj஺ᑡlm!"Ḅ#$%A.nᵨᓄbpqdhᱥQjp?B.〉stᜧvwᜧxᑁz(ᓄ{Ḅ|}~vwḄᐝᔠhᵨC.ᜧjnᵨdec⌕nᵨdeD.᪶᝱bCᮞᔠnᵨ~?bᦔ10.Ậᐗᨵ■cᢙhᵨ஺᝞ᵬ#ẬḄ¢£¤᪀¦§¨#Ậᐗᙠᐗᕜ]⊤[Ḅ«¬ᑡlm!"Ḅ#$%2⚓ᐳ23⚓

2A.Ậ¢£᪶ᑁ[£ᦪ±34B.Ậ¢£ᙠᓄ[᧕´ᑮᵯ£C.ẬᐗḄᐗ·¸±Se,#»¼ᐗD.ẬḄ½¾¢£3j±78.96g11.ÀÁÂᘤᑁᨵᵬஹ¨ÅஹÆǼᱥ3ᙠ»ÈᩩÉᐙᑖᔠÌ´ÍÎᔜᱥ3Ḅ3jᑖᦪ᝞ᡠ¦஺ᑡlm┯ÒḄ#$%A.1ᡂᵬcÅḄ3jÔ±8Õ1B.¨~Ö#×ḄØᓄᑺC.×#ᑖÚD.Æ»È#ᓄᔠᱥ12.ÛÜÝᳮ#ᓄß᪶àáḄâ⌕ᑁÂ஺ᑡÝᳮ!"Ḅ#$%A.⏚ãḄpH<7,ᡠpH<7Ḅãæ»È#⏚ãB.ᓫ3è黼ᐗᡠè黼ᐗḄᱥ3»È#ᓫ3C.⏚ᙠæ*+[ÚêëH+,ᡠᙠæ*+[ÚêëH+Ḅᓄᔠᱥ»È#⏚D.ìឋ*+Önî⁐ðñò+2ó⁐ᡠ{⏚)*+ôÖnî⁐ð⏒ò+2ó⁐13.ᔣCUNC32ஹAgNC%3Ḅᔠ*+[÷ᐭ»ÈjḄJùᐙᑖÎúûüᔣûý[÷ᐭG⏚0þÿᨵ
ᑣᨵḄᱥA.Fe>CuB.CuஹAgC.CuD.Ag14.25°C#ᔣ20.0mL(ᑖᦪ+30%Ḅ.⏚012▲pH3ᓄ567,67ḄpH;ᡠ123ᓄ567Ḅ=>᝞@ᡠABᑡᨵᐵEFGHḄA.bஹdKLM67ḄpHNb>d------------------------------------►010.020.0V(NaOH)mLB.ᡠᵨ23ᓄ567Ḅ(ᑖᦪ+30%

3C.ᔣbKLMḄ6701QR6767ᕈT⁐D.dKLMḄ676NaQVNaOH15.+WᑮYBZ[\Ḅᡠ]^ḄZ[_ᫀaᔠᳮḄZ[\ḄZ[_ᫀAdeNaClஹNa2cO3fg6701hijᑺB␺emg67FeCk67no67p⁐01AgNO367C◀rNaQ67ḄNa2sO,01〉(BaCk67ᐙᑖuMvwDᑖxyᨵz(NaQḄKNO3{|B}ᑴKNO3Ḅ⛳V67wA.AB.BC.CD.D16.ᓄᡃᨵᦈBᑡaGHḄA.ᓄ;ᏉB.ᓄ;জỚজ·¸¹ᵨº□¼½Yᨵᦔ¿zÀ᣸Âঝ+ᢝᾙᑴ£ᕡ⍝¦§ᙠ✏ª1ᐭঝÃÄÅஹᔠÄÆÅÇÄÅᩞᧇw(Ḅ¬⏚5ঞ᯼ËÌḄÍ3ᓄÎ᧕Ðᡂ⏚Òঞ+⊡ᐙ°±²ᔛᾙ´aᔛµ¶C.ᓄ;ÓᐰD.LᓄᐗÖḄ×Øজᙢð(ᨬ{ḄÄÅᐗÖòজKË2
Ù⌕Û[ÜḄÃÝঝ\Ùó(ᨬ{ḄÄÅôঝ᯼
ÞßMàᓽᐵâ▀äᡭæäçঞÄÅõᱥḄö(ᨵ▲Mᔠᳮᑭᵨ;ঞ᯼᮱éÂêëa¼■íCOîùA.AB.BC.CD.DÍஹúû⚪ýᜧ⚪ᐳ4⚪ᐳ18.0ᑖ17.᪷ᡠᓄ⏚ḄḄᑡ⚪:0࠷10࠷20࠷30࠷40࠷ᓄ/g3535.53636.537⏚/g6101836.550l
tJCNaQḄ!g«2
t࠷0t,#40gNa2cO3$%&ᐭ50g()ᐙᑖ+ᡠ,Na2cO3-)./204⚓ᐳ23⚓

4ᑺḄ.345஺ব7Na2c஺3)9ᨵ;3ḄNaCL<=Na2cO3>?@ḄAB!஺(D“FGᨔ”ᡈ“KLGᨔ”)18.NOḄPLஹᑭᵨ/TUVWḄXᢝZL[\ᐵ஺(1)^_᧕ᨵabc“defgh᧡jᔿlm஺”ᑡNOXn“᧡jᔿlm”Ḅ!(Dop)஺aஹqNbஹrscஹjNdஹ᯼u(2)ấ(Si)\wxyz{x|}ஹ~!PLḄᧇᨔ%ấᑴ,Ḅ□Nᵯ!#□Nᓄ5N஺ấḄG᪀5oấᐗḄᨬᓄᔠxᐸḄᨬ᜜ᵯᦪấᐗᨬᓄᔠw>yᓄᱥḄᓄ5o(3)╅¢ᯠឋ.¥¦§¨#╅©/Ớ©(«¬⁐)ᙳᒴ9ᔠ°±g²>஺³&°³(+Lmᒓµ²>¶·ᨵᜧ3«⁐Kz($%Ớ᧕ᓣº)»²>¼½)¾3(D“ᔾᦈ”ᡈ“Á”)»²>Ḅ²>UÃ!,(ḄÅᵨ!஺19.2020Æ5ᨴ22ÈÉÊ▾ÌᳮÎÏÐᙠÒÓÔÅÕÖ)Ð×cḼÙᢕÛÜÝmÞ஺ßàáâãä☢æÞ3ᜧÙ■èéᜧêëì஺ឮîmïmÞ஺ðñ“òó”ḕõö÷ᑴ“øù”úõö÷ᑴ஺ûᵨᡠḄᓄüýᑡ⚪஺(1)“òó”)Ḅᜧòþ⌕ᨵḄ⃩“”ᒹC,C,!"#:(2)%&'()⍝+,ᡈḄ.ᕡ01Ớ%&Ḅ“Ớ”ᢣḄỚ(5“ᓫ7”“8”ᡈ“ᐗ”);

5<3>?@AB%CDEFC⌕ᔠᳮJᵨᓄM<5“NM”“OM”ᡈ“PM”>QRSᢙUVWᢙ᎔YQZ;<4>\ᑡᨵᐵ_%`ᐰḄbcdeḄ஺A.ᵬjᨵ■ῖmᵨ,nᵨᩭpq%ᩞB.☘uvwx᝘Q⊡ᐙ┛ᐗC.ᾦஹ7◤Ḅ⃩ᔛD.ឮC?@ACD᷊ᾙ᳛ᙠ⛴ᧇ1᷊ᾙ20.ᙠCᨵḼḄᵨ஺ᩞᧇ¡ᡂ?£!¤¥Ḅ¦⌕ᱥ7ẠẆªᐸឋ7ᓝᑖ⌕஺<1>°DᨬḄᐗ<5ᑏᐗ³´>஺<2>µ¶ḄẆªᑭᵨ¸¹º»ᜧ½¾¿¤ᑭᵨḄᐜÁÂÃÄḄᨵᐵ஺ÅÆÇ?ÈÉÊËஹÌஹ¹ÍḄÎឋÂÃ஺ÏÐÈÑÒÓÉÔজÖËᱏஹ¹ØᑖÙÚᐭÜ&⏚;ঝÖÌØÚᐭß⏚¹àá;ঞÖ¹ØÚᐭß⏚Ìàá;টÖ¹ØÚᐭä⏚Ëàá;ঠÖËᱏÚᐭß⏚Ìàá஺\ᑡÓÉæᔠQçÉÊËஹÌஹ¹ÍÎឋÂÃḄ<5ᑏèé>஺A.জঝB.জঞC.ঝটD.জঠÍஹêë⚪<ᜧ⚪ᐳ1î⚪ᐳ5.0ᑖ>21.ÅᓄÇᐶñîæµòóᔠᱥAḄæᡂôõÓÉẆªöA,QᨵK2c<>3ஹKC1ஹFe2<>3Ḅûᡈü᪷þ᝞ᡠ⚪ᡠᨵḄᙳាᐰ6⚓ᐳ23⚓

6(1)A"#$ᨵḄᱥ&'(ᑏᓄ+,)(2)./Gᜧ12ᙠḄ⏚᪷67'(ᑏ6789)(3)ᑏ:ঞḄᓄ+<,=,?@A(B"CDEFG)HஹJ⚪(Eᜧ⚪ᐳ1K⚪ᐳ7.0ᑖ)22.ᓄ+NOPQ(1)RSஹTᮞஹVWஹKXᡭஹZ⏚[⌱]8ᔠ⚪_Ḅᱥ&(ᵨᓄ+,Ba)஺cᵨᩭeᑴghi/Ḅj',ᯏᑴlmᡠᵨḄ⏗oḄp⌕ᡂᑖ'஺(2)Qcᵨstᓄuvwxyᵨz{vwḄ|}'஺ᓄ+N~ᦻᓄ(3)ᓅ[⌕ᶍ“ᨵ(Z⏚[./)SᦪFᩈᐸᡂ[”
ᵨᓄ+<,⊤ᐸ|ᳮ஺(4)¡¢£w¤ồ¦=“§¨©ª«⃁®ᦋᢈ±ᑴᦿ³´{({ᢣᜩᯠ{)¸¤w¹j”ᵨᓄ+<,⊤ᐸ|ᳮ஺ºஹ»¼⚪(Eᜧ⚪ᐳ2K⚪ᐳ12.0ᑖ)23.᝞'¾cᵨḄ¿ᑖÀÁᢥ⌕Ã⚪஺(1)¾ᑴstᓄuÄᵨtᓄÅ.ᑴt{ᙳ⌱ᵨḄÀÁᨵ(

7Bᑏ᪗9)ᑏ:ᑴstᓄuḄᓄ+<,஺(2)Çᵨ"tᓄuÈ|tᓄ[ᡈtᓄSᨬ⌱ᵨḄÀÁ'(Bᑏ᪗9)|}஺24.ᓄ+ᐶÌKÍÎÏ&1Ðឤ#ÒÓÔ╅ᩩᙠa{×VḄ(᝞1),Ø+ÙÚ®ᑮ╅ᩩᙠa{ᒓÝ×V:ὀßḄàᐝâḄᜧ1ãäåæᑮa{ᨬçᙠTèéêëᑮ"ìã⁐îï஺(1)ᑏ:╅ᩩ×VḄᓄ+<,;(2)Ø+Ùñò1ó=ᙠTèéêᦈõᑮâᱥḄ&1KA╅ᩩḄ&1ᨵöÎ÷øy⍳ú&1Ðឤ#Ò஺ûöÎ:ó÷᪵ýþḄ|}':(3)
ᢥ2ᦋឤᱥᨵ⁐஺ூ"#$⚪௃⁐'()*ூ+▅-ᧇ௃জ0ᓄ╅34⁐ঝ╅6789ᒓ;<=>⁐Ḅ8ᓄ╅(Mg3N2)ঞ8ᓄ╅B7C<=>D9E96FGHḄ⁐IJKLMN஺ூO#PQ௃⁐'Mg3N2ூRS௃TUVPQWXYZ[\ᔣ^_`Kabᐭ⁐dbᐭCKaeHḄ⁐IJKLfgY஺ூ

8ஹV⚪(ᜧ⚪ᐳ1
⚪ᐳ1().0ᑖ)25.᪥ᓄᐶ
ᙠb¡¢£¤¥¦ᑮ^G§¨©ᔆ᣸¬ḄCqᨵ®⏚°®⏚©±²³´ᱥ3¦ECᔜ³´ᱥḄq¶¨©ᔆ"·ᜐᳮCḄὃ£¤Ḅº»¼~½C300g,ᔣᐸbᐭ¿ᑖᦪ320%Ḅ0ᓄÁ¿Â¦ÃÄÅ7ᡠbᐭḄ0ᓄÁ¿ÂḄᐵÈ᝞Tᑖ᪆V~(1)>ᡂ0ᓄ©Ḅ3g(2)300gEC®⏚©Ḅ(3)EC®⏚Ḅ¿ᑖᦪ஺(V[ÌÍÎᑮ0.1%)
Ḅg

9Ïᫀ°|᪆1.ூÏᫀ௃Cூ|᪆௃|~Aஹℍ⃔Ô_ᡂℍ⃔_ÕÖ×ᨵᱥ>ᡂØtᱥᳮMᓄ஺Bஹℍ⃔Ùᡂℍ⃔ÚÕÖ×ᨵᱥ>ᡂØtᱥᳮMᓄ஺Cஹℍ⃔Ûᡂ⏀ÕÖᨵᱥ⏀Í>ᡂØtᓄMᓄ஺Dஹℍ⃔ῃÞÕÖ×ᨵᱥ>ᡂØtᱥᳮMᓄ஺ᦑ⌱~Co⚪áâãᜧ|Ï¢⌕ᑖ᪆MᓄÕÖ'ᔲᨵᱥ>ᡂæ×ᨵᱥ>ᡂØtᱥᳮMᓄæᨵᱥ>ᡂØtᓄMᓄ஺2.ூÏᫀ௃Dூ|᪆௃ூᑖ᪆௃⚪ὃ+CḄᜩᯠé£Cᙠᜩᯠé£ÕÖCḄêë`ᓄCḄᜩᯠé£ìᡂC-íḄîᑖï஺ூ|Ï௃জCᙠᜩᯠé£ÕÖCḄêë`ᓄðÎঝCḄᜩᯠé£'ñÕCḄò᝱MᓄḄðÎঞCḄᜩᯠé£ìᡂC-íḄîᑖï3ᙢᳫöḄ>ᱥ⊡ᐙùC-íðÎটCḄᜩᯠé£'êᯠûCᑖüý¡Ḅ[ÌðÎᦑ⌱~Do3.ூÏᫀ௃Cூ|᪆௃|~AஹFᵨÿᜮ

Ḅᜮ
ᐭᑮᑁᡈᑁᚖᙠ!"
■$%&ᜮ
'(ᡠ*┯,஺Bஹ/ᵨ1234567ᵨ5ᓇ/ᵨᵨ956:;⌕᎔>'(ᡠ*┯,஺Cஹ?@ᦪ7BC⌕D?ᑁḄE☢ḄᨬHᜐJᢝLM'(ᡠ*NO஺DஹPQRS⏚7⌕URS⏚VVᙢXᘤᐭL(Z7ᵨ[ᴻ]^ᤅ`abcd7ᙢ᡽ᦣghiULᐭRS⏚(g'(ᡠ*┯,஺ᦑ⌱lCom10⚓ᐳ23⚓

10Aஹ᪷rbᵨᜮ

Ḅ"stuᑖ᪆ᑨ^.Bஹ᪷r156Ḅ/ᵨ"stuᑖ᪆ᑨ^.Cஹ᪷r?@ᦪ7BC⌕DE☢ḄᨬHᜐJᢝLMtuᑖ᪆ᑨ^.Dஹ᪷rRS⏚ḄPQ"s(⏚ᐭLXᘤ᠒᠒᎔^ᤅ)tuᑖ᪆ᑨ^.}⚪ᜧ៉ᔜᘤḄᵨ⌶dbᵨ⚗ஹᓄ}Ḅ⚗⚪Ḅᐵ.4.ூᫀ௃Aூ᪆௃lAஹ☄ᜩ¡h¢ᓄ£ஹ⚩¥ᱥ§%&ᱥᦑ⌱⚗¨ᔠª⚪gBஹᓫ¬u®¯°¢ᓄ£Ḅ᣸>ᦑ⌱⚗¨ᔠª⚪஺Cஹ²tᚗ´ᑖµᦈD·¡¸¹µᦈ⁚»¸¹ஹ¯%&ᦑ⌱⚗¨ᔠª⚪஺Dஹ¼½₝½₝®a¿Àᐝᔠᵨᔾᦈ°¢ᓄ£ᦑ⌱⚗¨ᔠª⚪஺ᦑ⌱lA«᪷r■Ä%&ஹ¯°¢ᓄ£᣸>ḄÅÆᑖ᪆஺}⚪ᜧÇÈ᛻JÊËÌHÄ(°¢ᓄ£ÍḄÅÆNO}⚪Ḅᐵ஺5.ூᫀ௃Bூ᪆௃lAஹÎÄஹÏÄÐᵫhᐗÓÔᡂḄÖ×ᱥØÙᓫÚÛsNOgBஹ£⏚ÎÜÝᯠÍᨵ£ᐗÓàᐸឋÚDãäᱥåæᦑØÙãäᱥᦑ⌱⚗┯,gCஹç⏚èஹéÄÐᵫZᐗÓÔᡂḄÖ×ᱥØÙᓄᔠᱥᦑ⌱⚗ÛsNOgDஹêëஹìíîÐᵫZᱥÚÔᡂḄØÙïᔠᱥᦑ⌱⚗NOgᦑ⌱lBo᪷rᓫÚஹᓄᔠஹãäᱥஹᨵäᱥஹïᔠᱥḄiðtu஺}⚪ὃòÇᓫÚஹᓄᔠஹãäᱥஹᨵäᱥஹïᔠᱥḄið⚪óô᧕஺6.ூᫀ௃Cூ᪆௃lA.öᾦ⏚øᵫöᾦ⏚øᑖù᪀ᡂḄ1ûöᾦ⏚øᑖùᵫ18û£üùஹ35ûÎüùஹ2û¢üùË1ûøüù᪀ᡂḄᦑ⌱⚗Ûs┯,஺B.öᾦ⏚øᑖùᵫ£üùஹÎüùஹ¢üùËøüù᪀ᡂḄgöᾦ⏚øᵫ£ஹÎஹ¢ஹøýᐗÓÔᡂḄᦑ⌱⚗Ûs┯,஺C.öᾦ⏚øᵫ£ஹÎஹ¢ஹøýᐗÓÔᡂḄᓄᔠᱥᦑ⌱⚗ÛsNO஺D.öᾦ⏚ø(£ᐗÓË¢ᐗÓḄÚþÿ(12x18)(16x2)=274,ᦑ⌱⚗┯

11ஹ஺ᦑ⌱Co⚪ᜧὃᔠஹᮣᵨᓄ!Ḅ#$%ᨵᐵ()*+ᑖ᪆.⚪ஹ/0.⚪Ḅ12஺7.ூ6ᫀ௃Dூ/᪆௃/Aஹᔠᡂᛛᧇ<=ᨵ>ᔠᡂ?ᑖ@ᩞᧇᦑABCDBஹEᴻஹ◌HஹIJKL<=ấ⏚OᩞᧇᦑBBCDCஹấḄPQRSᨵ“U”WX<=YZ<ᦑCBC஺Dஹ[╅ᔠZ<=Z<ᩞᧇᦑD┯]஺ᦑ⌱D»᪷_ᩞᧇḄᑖ`*+ᑖ᪆ᓽb஺⚪c⌕eὃfḄgᔠᑖ᪆12⌕hfᐹᜓᨵᐵᱥlḄmẠop஺8.ூ6ᫀ௃Aூ/᪆௃/Aஹqᓄrs!tᑏvᐰBCᦑ⌱⚗BC஺?xBஹqᓄrs!yz{|ᩩ~BCḄᓄrs!|CaCOsCa0+C02ᦑ⌱⚗┯]஺CஹO⏚◀┑┤ᨵfeO⏚{|fᡂᓄBCḄᓄrs!|Fe+2HC1=FeCl+HT,ᦑ⌱⚗┯]஺22Dஹqᓄrs!ᓄ╅Ḅᓄ!tᑏ┯]BCḄᓄrs!|2Mg+O2=2MgO,ᦑ⌱⚗┯]஺ᦑ⌱A«᪷_ᓄrs!ᑨB]Ḅr◤ὃ⇋|ᵨḄᳮeᔲBCᓄ!tᑏeᔲBCDeᔲD{|ᩩ~eᔲBCDT1Ḅ᪗eᔲBC஺⚪ᜧᙠ/`⚪✌ᐜᑖ᪆|ᵨḄᳮeᔲBCᯠ£¤᪷_rs!Ḅtᑏ¥ᑣ*+ᑨDᓄrs!B]ᑨreᐜ§ᓄ!eᔲBC¤§¤§{|ᩩ~¤§¨©ªᨬ£¬ᦋᡂK¯஺9.ூ6ᫀ௃Bூ/᪆௃/Aஹe°ᵨᓄ±²³´µᱥ¶²?|qᔠᳮ°ᵨᓄ±q⌱⚗BC஺·12⚓ᐳ23⚓

12Bஹ〉»¼ᜧ½¾ᜧ¿ᑁᓄÁḄÂbÃÄ*½¾ḄᐝᔠµᵨeᓄÁeᐝᔠµᵨḄÆÇᧇq⌱⚗BC஺Cஹᜧ¶°ᵨ´ÈÉÊËÌÍÎÏÐÑ⌕ᔠᳮ°ᵨ´Èq⌱⚗BC஺Dஹ┤᝱Ó±%ÔUᮞÖᔠ°ᵨ┤᝱Ó±1ᓄ┛{|fᡂØKᱥlÙÚ±ᦔq⌱⚗BC஺ᦑ⌱B»Aஹ|qᔠᳮ°ᵨᓄ±஺BஹᐝᔠµᵨÜsRIᓄÁ{|fᡂᨵ>ᱥ஺Cஹ⌕ᔠᳮ°ᵨ´È஺Dஹ╄᝱Ó±1ᓄ┛{|fᡂØKᱥlÙÚ±ᦔ஺⚪c⌕ὃᱥlḄឋl/6⌕᪷_ᔜÇᱥlḄឋlᔠᔜr☢ᩩ~*+ᑖ᪆ஹᑨáâãäBCḄå஺10.ூ6ᫀ௃Bூ/᪆௃/AஹᵫçèboẬ@᪶ᑁl@ᦪ34,Ậ@᪶ᑁR@ᦪ஺ìí@l¶Æl@ᦪ=79—34=35Dᦑ⌱⚗┯]஺Bஹᨬ᜜ïᵯ@ᦪe6,ᙠᓄ{|R᧕ãᑮ2óᵯ@âôᡂ▢ö@ᦑ⌱⚗BC஺Cஹ᪷_ᐗøᕜú⊤RḄÆüboẬᐗøḄᐗøý¯Se,eÆÇYZ<ᐗøᦑ⌱⚗┯]஺Dஹ᪷_ᐗøᕜú⊤RḄÆüboþWÿ☢Ḅᦪ⊤ᐗḄ78.96,ᓫ“1”“”ᦑ⌱⚗┯஺ᦑ⌱Bo!⚪#$ᜧᮣ'(ᵨᐗᕜ+⊤,ᐗḄ-./0ᦪஹᐗ23ஹᐗ45ஹ6ஹ7᪀9:Ḅ;<=>?@!⚪ḄᐵB஺11.ூ@ᫀ௃Aூ?᪆௃ூᑖ᪆௃!⚪#$ᜧὃKḄLឤNOḄPᵨ?⚪ḄᐵBᑖ᪆⊤,ᦪQ/RPSᑖᦪTUḄVWXᡂᱥஹᑖᦪ[\ḄVWRPᱥ6ᮣ'(ᵨLឤNO஺RPSTUḄVWXᡂᱥRPS[\ḄVWRPᱥRPS]^_VW`ᓄᑺcdᑖ᪆ᑨf஺

13ூ?@௃ᵫhiᱥRPjSᔜᱥḄᑖᦪ^lRPjSᵬḄᑖᦪTUn19%-17%=2%,ᦑᵬXᡂᱥopḄᑖᦪ]^_qRPḄ`ᓄᑺr^_sᨵuvRPoRPSwḄᑖᦪTUn41%-25%=16%,ᦑXᡂᱥoxḄᑖᦪ[

1448%-30%=18%,RPᱥ஺AஹXᡂḄᵬஹwyᱥḄz{2%16%=18,ᦑ⌱⚗┯oBஹpḄᑖᦪ]^_qRPḄ`ᓄᑺr^_sᨵuvRPᦑ⌱⚗=>oCஹRPḄRPᱥxXᡂᱥᵬ|w2ᔠ“~]”Ḅ2ᔠᑖ?RPḄᱯVWᑖ?RPᦑ⌱⚗=>oDஹxᑖ?RPḄRPᱥ~Nᓄᔠᱥᦑ⌱⚗=>஺ᦑ⌱A«12.ூ@ᫀ௃Dூ?᪆௃?Aஹ⏚pHW5.6Ḅᦑ⌱⚗ᳮ┯஺BஹᓫᵫiᐗᡂḄᱥᓫ;~iᐗ;~iᐗḄᱥ~Nᓫr^_ᔠᱥ᝞|Ḅᔠᱥᦑ⌱⚗ᳮ┯஺Cஹ⏚ᙠ,?H+,ᙠ,?H+Ḅᓄᔠᱥ~N⏚᝞⏚ᦑ⌱⚗ᳮ┯஺Dஹឋ_⁐¢£¤]¥⁐¦⏚§ឋr_⁐¢⏙¤]¥⁐ᦑ⌱⚗ᳮ=>஺ᦑ⌱D஺!⚪#$ᜧ?@©ª⚪«⌕᪷Ql®Ḅᱯ¯ª_°±ª²⌕³9l®¯v´Ḅᨵµ7ᔠ¶ᑮᐹ¹º⚪_ᐹ¹ᑖ᪆஺13.ூ@ᫀ௃Dூ?᪆௃ூᑖ᪆௃»z¼'½¼z¾'½ᔣCU(N()3)2ஹAgNO3Ḅᔠ,Uᐭ~NḄ»Á«»ᐜ|Ã⏚¾RPXᡂÃ⏚Ä»|¾S|Ã⏚¼RPXᡂÃ⏚Ä»|¼oÅÆ⏚_|¼ஹ¾RP_|»RPXᡂÇᓄÄ»|஺ூ?@௃ᐙᑖRPSÉÊËᔣÊÌ,UᐭÅÆ⏚ÍÎsᨵÏÐXÑÊÌ,;ᨵ»,Ó14⚓ᐳ23⚓

15ᑣÊÌ,~N;ᨵḄᱥ»|Ã⏚¾RPXᡂḄ¾஺ᦑ⌱D»⌕ᑭᵨÚV'ÛÜ0⊤ᑖ᪆ÝÞjßḄÚVvÅ⏚ஹÆ⏚RPàSßḄÚVvÅ⏚ஹÆ⏚RPjßḄÚVáSßḄÚVâᐸÆ,äᣚᩭ஺14.ூ@ᫀ௃Dூ?᪆௃?A.ᵫ:^lb¯ᡠḄpH<7od¯ᡠḄpH>7,ᡠòbஹd¯PḄpHb?⁐ᦑ┯&'D.d-ᡠ.ḄpH>7,ᡠ.ḄCᨵ⏚DEFᡂḄHᓄIᨵJḄᓄᦑK஺ᦑ⌱ND஺A.᪷QḄpHᩭST'B.᪷QᓄVWXYZ[ᑖ᪆'C.᪷Qᡠ.Ḅ⏚Dឋᩭᑖ᪆'D.᪷Qᡠ.pHᩭᑖ᪆஺⏚DE]^_ᔠ)a+bᩭὃde〉ὃdḄ+b☢Th.15.ூkᫀ௃Dூn᪆௃nNAஹ78pᏲ=>?⁐Ḅrs⏚t>⁐ḄrHᓄu⌱⚗ᔠᳮ'Bஹrxy⁐8ᐭ{⏚|}F~⁐rHᓄE{⏚|]^Fᡂ~⁐Hᓄ|E{⏚rHᓄu⌱⚗ᔠᳮ'Cஹ78〉BaCkHᓄE⏚]^Fᡂ⏚EHᓄᐙᑖ]^JᑮHᓄu⌱⚗ᔠᳮ'DஹᑴKNO3Ḅ⛳EJᑮḄr{⏚EHᓄḄᔠu⌱⚗tᔠᳮ஺ᦑ⌱ND»

164⏚ឋE4ឋt¡p¢=>⁐4Dឋ¡p⏙=>?⁐'Hᓄrxy⁐E{⏚|]^Fᡂ~⁐Hᓄ|E{⏚'⏚EHᓄ¤¥]^Fᡂ~⁐⏚EHᓄ'{⏚ஹHᓄḄn¦Ḽᓣ©ªᜧ¦Ḽ¬©®¯{⏚Ḅn°>ᓄ±²ᜧHᓄḄn°>ᓄ±²¯஺³⚪´⌕ὃdᱥḄឋnk·⌕᪷QᔜᱥḄឋ_ᔠᔜW☢ᩩºZ[ᑖ᪆ஹᑨ¼½©¾KḄ_¿஺16.ூkᫀ௃Aூn᪆௃nNA.জÁỚÃÄÅᵬÇÈÉᜧÊ┯&'ঝ{⏚ᨵÌᙠ✏Ït8ᐭJḄ{⏚Ê┯&'ঞÑÒÓÔÕFÖÕFÖ×ÕᢝÙÚᏉÜÅᑮÝᜧÞᵨtàᔛᾙãtᔛÑÒÊ┯&äᔠ⚪å'B.জhæ¡ᵨç□*®éᓄ;êᧇḄ¡ᵨᨵᦔ®és᣸îÊKNঝïðñஹᔠðòñðñᩞᧇÊK'ঞôᓄr⌼ᡂ⏚öḄ´⌕ᱥᡠ᯼êø}FḄôᓄ᧕úᡂ⏚öÊKtᔠ⚪å'Cজ-êûüý⌕þÿḄ■ᰦঝ᯼ᓽᐵ▀ᡭ"#$%&ঞ()ᓄ+,-./ᡠ᯼᮱234/5■6CO9:ᔠ⚪=D.জᙢB9CDᨬFḄGHᐗJKLঝMNOPDᨬFḄGHKQঞGHRᱥḄTDᨵ▲ᔠᳮᑭᵨZ[\ᔠ⚪=஺ᦑ⌱`A஺ᓄbᩭd.Pefghij.PeᡠZklPemᐵḄᓄbnofKp⌕Ḅ9ὃst(஺17.ூyᫀ௃36.52`5$ᨔூ᪆௃`(1)ᑖ᪆-ntJCNaClḄ-K36.5g(2)t2°C+⏚Ḅ-K40g,40gNa2cO3ᐭ50g/9ᐙᑖ-¡ᡠ¢Na2cO3-£9-¤Z-ᑺḄ¤D¦§20g`50g=2`5(3)+⏚Ḅ-©ªᓄ«¬ᜧ¯ᓄḄ-©ªᓄ«¬°ᡠ±Na2c஺39²ᨵ³DḄNaCl,´Na2cO3µ¶Ḅ·K$ᨔ஺ᦑyᫀ§`(1)36.5(2)2`5¸16⚓ᐳ23⚓

17(3)$ᨔ஺᪷¼Ḅ-½¾¿ᱥ¤ᙠ(ÁÂḄ-ÃÄÁᱥ¤Ḅ-ឋ¦Æᱥ¤ᙠÆ(ÂḄ-ᜧ°ÃÄᑨÈ⛳Ê-£9-¤Ḅ¤DᑖᦪḄᜧ°ᑨÈᱥ¤Ḅ-̪ᓄḄªᓄÍÎÃÄᑨÈ´ᨔḄ·஺Ï⚪,KÐᜧÑ⌕ὃ½ÒḄ-ᡠ⊤ÔḄ=ÕÖ᪷¼Ḅ-ᩭ×mᐵḄØ⚪ÃÄÙÚᑖ᪆Ø⚪ஹ×Ø⚪Ḅ5Ü஺18.ூyᫀ௃acᵯ@284SiO3¾ᓄᔠÞßᓄàᵨ2ூ᪆௃`(1)5d“᧡ãᔿå”çH.è5d5Êã5H.è5dᦑ⌱`ac(2)ᨔấ(Si)ᑴ¢Ḅë□5ᵯíKë□5îᓄ§ᵯ5ấH.᝱ðGHᓫ¤Kᵫó᪀ᡂḄấó᪶ᑁᨵ14ø¤ó᪶᜜ᨵ14øᵯó᣸û·ü§2ஹ8ஹ4,ᦑấóḄó᪀Ô=ý§&84,ấóᨬ᜜ÿᵯ
ᦪ4,ᐸᨬᓄᔠ+4ᐗḄᓄᔠ-2ᡂḄᓄᔠᱥᓄấᓄSi஺?ᦑᫀᵯQ14)84SiO;2(3)ᵫ"#$%&'()*+,-)*,.Ḅ-/0Ớᵫ2᝱45᝱ᙠ7Ḅ8ᓄ9ᵨ;╅=Ớ)*>ᡂỚᓄ╅?ᔠ“A4B”ḄᱯEFGᓄᔠ)*ᦑᫀ,.ᓄᔠ)*8ᓄ9ᵨ஺(1)᪷IJKḄᑖMᩭᑖ᪆(2)᪷IJKḄPᓄஹR
S᪀UVᓄᔠᱥḄᓄᑏXᩭᑖ᪆(3)᪷Iᓄ)*YḄJ/4ᓄஹ)*ḄᱯZUV8ᓄᑺḄᑨ]^Xᩭᑖ᪆஺_⚪ὃbcJKḄᑖMஹR
S᪀defḄgh=*ᵨஹᓄ)*YḄ-/4ᓄi'j,lmnᜧ஺19.ூᫀ௃sMu⊈wᐗxyB

18ூz᪆௃z(1)~ᡠ◤Ḅᜧ⃩ஹsMஹᾦஹ>ஹ7ᐸYᜧ⌕ᨵḄ_⃩sM஺7>C,~>C,u⊈w஺(2)ᐗ
ᦪ(ᡈ᪶ᵯ₹ᦪ)£¤ḄBMR
Ḅ¥¦§Ớ¨YḄ“Ớ”ᢣḄỚᐗ஺(3)«ᱥᡠ◤Ḅ⃩ᐗY¬ஹஹx◤⌕/®ᜧ¬yஹyxy⌕ḄᓄyᐸYxyJ¯°ᢙw²³ᢙ᎔µJ¶஺(4)AஹᵬºẚuḄS᪀0ᐸ4ᨵ■ῖ9ᵨ¾¿À~ᏉÂᨵÃÄᓻ³nJᵨᩭÆǨᩞᦑ⌱⚗┯ÌBஹÎ᝘Y◀cᨵÑḄ᜜┛¿Ô®Ñ☘Ö×AØÎ᝘J⊡ᐙ┛ᐗᦑ⌱⚗ÛÜCஹᾦÝஹ~Þ◤Ḅ⃩◤⌕ᔠᳮ᤬ᐭ᝞ᔛäåAæyç§Äᑁéêëᦑ⌱⚗┯ÌDஹ᝞᤬ᐭᜧ/Ḅ᷊ᾙï&Jðñ~.$YòVᵯzóôḄᓻ³ᡠU>õ>öYnJ0ᵨ᷊ᾙïᦑ⌱⚗┯Ì஺ᦑ⌱B.ᦑᫀ(1)sMu⊈w(2)ᐗ;(3)xy;(4)B஺(1)᪷I~ᡠ◤Ḅ⃩Vᐸ9ᵨᑖ᪆(2)᪷IᐗḄᭆùᑖ᪆(3)᪷I«ᱥᡠ◤Ḅ⃩ᐗḄ9ᵨᑖ᪆(4)᪷Iᓄᐗ=~ᏉÂᑖ᪆஺_⚪ὃbc~ᡠ◤⃩ஹᓄᐗ=~ᏉÂஹᓄyúM9ᵨi'jZlmnᜧ¾ᑁû®Aüý£ᐵ'jZÿ
ᑖ᪆ᓽ஺20.ூᫀ௃NaឋABCூ᪆௃(1)!ᨬ#Ḅ%&ᐗ()Na஺(2)*+,%&-ḄẆ/0ᑭᵨ340567%&ᜧ9:;<0ᑭᵨḄᐜ>?@A%&Ḅឋᨵᐵ஺D18⚓7ᐳ23⚓

19A.জ(IJ0K⏚MN74OJ7PQI34R)ঝ(TOJ0U⏚4MN7PQ43TR)V஺B.জ(IJ0K⏚MN74OJ7PQI34R)ঞ(4J0U⏚TMN7PQ43TR)V஺C.ঝ(TOJ0U⏚4MN7PQ43TR)ট(4OJ0Y⏚IMN7PQI34R)V஺D.জ(IJ0K⏚MN74OJ7PQI34R)ঠ(IJ0U⏚TMN7PQI3TR7OJ3\40TḄឋ)OV஺ᦑᫀ^পNa஺(2)ឋ;ABC஺%&ឋ?@7᣸ᙠcd☢Ḅ%&7J0fK⏚ᡈfY⏚MNhᡂK0cj7᣸ᙠd☢Ḅ%&7Jk᣸ᙠ>☢Ḅ%&lmḄKnopᣚrᩭ7tu%&vR7vw᧕ᐜ0KnoMN஺yᑭᵨ%&?@⊤ᑖ᪆{|7cd}Ḅ%&yAfY⏚ஹK⏚MN7c>}Ḅ%&OyAfY⏚ஹK⏚MN7d}Ḅ%&yk>}Ḅ%&lᐸKnopᣚrᩭ஺21.ூᫀ௃K2c஺3ஹFeOCI-FeCl+3K0H=Fe(OH)I+3KC1ᑖMN2333ூ᪆௃⏚0K⏚MNhᡂᓄஹ0ᓄ7⏚0cᓄMNhᡂ⏚50cᓄ7ᓄ50K⏚MNhᡂᓄ50750c᪷MNyhᡂ⋎⁐Ḅcᓄ57ᡠVᔠᱥ£K⏚MNyhᡂjB,ᡠVᔠᱥ¥¦ᨵ⏚7⏚0cᓄMNhᡂ⏚0cᓄ7ᡠVE)⏚⚞7D)ᨵcᓄ7D0CMNyhᡂ⋎⁐7ᡠVF)cᓄ57Cᨵ57ᡠVᔠᱥ¥¦ᨵᓄ57ᡠV(1)©ª«¬7A¥¦ᨵḄᱥ®)K2cO3ஹFeO23¯(2)cᓄ0ᓄ5MNhᡂcᓄ50ᓄ7ᡠVnoGᜧ!±ᙠḄ⏚᪷)C²¯(3)MNঞ)cᓄ0ᓄ5MNhᡂcᓄ50ᓄ7ᓄ³´µ¶^FeCl+3K0H=Fe(OH)I+3KC1,·MN&¸ᑖMN.33ᦑᫀ^(1)K2c஺3ஹFeO23¯(2)C²¯(3)FeCl+3K0H=Fe(OH)I+3KC1,ᑖMN.33

20᪷¹⏚0K⏚MNhᡂᓄஹ0ᓄ7⏚0cᓄMNhᡂ⏚0cᓄ7ᓄ50K⏚MNhᡂᓄ50750c᪷MNyhᡂ⋎⁐Ḅcᓄ5º»¼½ᑖ᪆.ᙠ¾¿⚪Á.7✌ᐜᑖ᪆⚪ᡠÃᱥ®Ḅឋ®0ÄÄÅÆḄMN7ᯠ>ȹ⚪ḄÉÊᑨÌᔜᱥ®Ḅ±ᙠឋ7ᨬ>¼½|Îᓽ.22.ூᫀ௃পCUSOMNaHCO¯3(2)ᓄḄÒÓ3ÔjḄᜧ¯(3)Fe+CuS0=FeS0+Cu¯44(4)CH+2O×C0+2HO»4222ூ᪆௃(1)ÙᵨᩭÚᑴÜÝ#oḄK)Y⏚47ᐸᓄ³¶^CuS0¯ᯏᑴßàᡠ4ᵨḄ<⏗âḄã⌕ᡂᑖ)⏚cå7ᐸᓄ³¶^NaHC0o3(2)hÙᵨᓄçèéOᵨêjçè7)ë^ᓄḄÒÓ3ÔjḄᜧ7êjḄÒÓ3ÔjḄì஺(3)5AY⏚4noMNhᡂY⏚í5no047MNḄᓄ³´µ¶^Fe+CuS0=4FeS0+Cuo4(4)ᜩᯠjḄã⌕ᡂᑖ)ᵬð7ᵬðᙠàñᩩóôñõhᡂᓄ07MNḄᓄ³´µ¶^CH4+20öC0+2H0O222ᦑᫀ^(l)CuS0NaHCO;4¯3(2)ᓄḄÒÓ3ÔjḄᜧ(3)Fe4-CuS0=FeS0+Cu¯44(4)CH+2O^C0+2H2஺஺422(1)✌ᐜ᪷¹⚪ø¦ᱥ®Ḅᓄ³ùú7ᯠ>᪷¹ûᑏᓄ³¶Ḅ´ý0þÿᑏ
ᱥḄᓄᓽ஺(2)ᵨᓄᵨᑖ᪆!"஺(3)$%&⏚()*+,ᡂ&⏚.$)*/(ᑖ᪆!"஺(4)ᜩᯠḄ3⌕ᡂᑖ5ᵬ7ᵬ7ᙠ9:ᩩ<=:>ᡂᓄ/?ᑖ᪆!"஺@⚪BCᜧEFᓄGHḄIᑏGJஹLMḄᵨ⌶%ᓄḄIᑏGJO5PQ20⚓ᐳ23⚓

21U!"@⚪ḄᐵW஺23.ூ"ᫀ௃ABDCaCO+2HC1=CaCl+H04-C0TECOᨵ]^ᵨE_`ab■3222dCO⍎
fghiᜐᳮlmnopூ!᪆௃!q(1)rstᑴvᓄஹwᓄxᑴvḄ+,ᱥ5yz/*z+,ᩩ<5{ᙳ⌱ᵨḄ~_`ᨵABD⏚┛/M⏚+,ᡂᓄ┛ஹ?/ᓄᓄGHqCaCO+2HC1=CaCl+H0+C0T3222(2)ᵨᓄᓄ(ᡈᓄ$ᨬ⌱ᵨḄ_`5E5qCOᨵ]^ᵨE_`ab■dCO⍎
fghiᜐᳮlmnop஺ᦑ"ᫀq(l)ABDCaCO+2HC1=CaCl+H0+C0?3222(2)ECOᨵ]^ᵨE_`ab■dCO⍎
fghiᜐᳮlmnop஺(1)᪷rstᑴvᓄஹwᓄxᑴvḄ+,ᱥ5yz/*z+,ᩩ<5{⏚┛/M⏚+,ᡂᓄ┛ஹ?/ᓄᑖ᪆(2)᪷ᵨᓄᓄ(Ḅ+,ᩩ<5ᓄ$Ḅ+,ᩩ<5{ᓄᨵ]ᑖ᪆஺@⚪3⌕ὃLzḄ~_`%ᦈ_`Ḅ~_`+,ᱥḄ᝱/+,ᩩ<⌱ᦈ_`zḄC/)!ឋ⌱.9:24.ூ"ᫀ௃2Mg+()2=2MgO+,ᡂḄᓄ╅ᑖ᡽ᦣᑮp¢£ᨵ¤¥¦⁐¨©¢ª«¬®¯⁐yz5ᓄ╅-3°±ᩩ<=²³´᧕/╅+,:>¶◤⌕9:ூ!᪆௃!q(1)╅:>ᡂᓄ╅+,ḄᓄGH52Mg+O2¸2MgO஺9:ᦑ"ᫀq2Mg+()2"2MgO஺(2)±¹ºw»¼~½qᙠ¨¾¿Àᦈᑮ¥ᱥḄ¼Áh╅ᩩḄ¼ᨵÂÃÄÅ+,⍳ǼÈឤ¶Ê஺
½Ä᪵rsÌÍḄa5+,ᡂḄᓄ╅ᑖ᡽ᦣᑮp஺ᦑ"ᫀq+,ᡂḄᓄ╅ᑖ᡽ᦣᑮp.(3)ூrs௃

22rsÎÏrs½ÐÑÌÒᔣÔÕ¢£ᐭ×¼¯⁐yzØᐭ×¢£ᨵ¤¥¦⁐¨©¢ª¼?¢£ÙÚḄ¦⁐¨©¢ªÛܽÐ஺«¬®¯⁐yz5ᓄ╅ᦑ"ᫀq¢£ᨵ¤¥¦⁐¨©¢ª«¬®¯⁐yz5ᓄ╅஺ூ+Ý%Þß௃জᓄ╅╅ᐗâᓄᔠä5+2,᪷ᓄᔠᱥᐗâᓄᔠäåᦪ/çèᐗâḄᓄᔠä5-3஺ᦑ"ᫀ:-3஺ঝpᵯḄì¼íᜧh஺2Ḅì¼5╅ᩩᙠp:>¥ᱥMgOᓾíïhMg3”,ᔠᳮḄ!ð5°±ᩩ<=²³´᧕/╅+,஺ᦑ"ᫀq°±ᩩ<=²³´᧕/╅+,஺ঞ±¹òὶôᑮxᙠab:>h5õ:>ᩩ<òᨵö÷ḄÃøq:>¶◤⌕஺ᦑ"ᫀq:>¶◤⌕஺(1)╅:>ᡂᓄ╅஺(2)ᓄ+,⍳ǼÈឤ¶Ê஺(3)᪷rs½ÐlᑨúrsÌÒ஺ᓄᔠᱥᐗâᓄᔠäåᦪ/ç஺°±ᩩ<=²³´᧕/╅+,஺:>¶◤⌕஺@⚪3⌕ὃᱥḄឋ!"û⌕᪷ᔜýᱥḄឋÌᔠᔜG☢ᩩ<ᑖ᪆ஹᑨúÿ
Ḅ஺25.ூᫀ௃(1)4.9(2)300gCuSC>4ḄXC11SO4ḄNaOHḄy,CuS0+2NaOH=Cu(OH)1+NaSO42241608098xyx20%4.9g160_8098xyx20%4.9gx=8g,y=20g:300g⏚Ḅ8g஺!22⚓ᐳ23⚓

23(3)300gH2sO4ḄzHS0+2NaOH=NaSO+2HO242429880z(80g-20g)x20%98_80T-(80g-20g)x20%z=14.7g⏚Ḅᑖᦪ=◴X100%=4.9%OvUg)⏚Ḅᑖᦪ4.9%஺ூ*᪆௃ூᑖ᪆௃,⚪ᔠ/0ᑖ᪆ὃ2ᨵᐵᓄ6789Ḅ:;஺<Ḅ/=>?@Aᑖ᪆>?ḄBC⊤E⏚FGᐰஹᢚC⊤E⏚KLᓄMាOGᐰ஺P⚪QRST஺ூ*௃(1)ᵫ/=Ḅ>?V
WាOGᐰXYᡂ[\4.9g](2)300gCUSO4ḄxCuSC)4ḄNaOHḄy,CuS0+2NaOH=Cu(OH)I+NaSO42241608098xyx20%4.9g160_80_98xyx20%4.9gx=8g,y=20g)300g⏚Ḅ8g஺(3)300gH2sO4ḄzHSO+2NaOH=NaSO+2HO242429880z(80g-20g)x20%98_80z(80g—20g)x20%z=14.7g⏚Ḅᑖᦪ=X100%=4.9%)⏚Ḅᑖᦪ4.9%஺