2021年河南省中考化学二模试卷（附答案详解）

《2021年河南省中考化学二模试卷（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。

2021
ᓭḕὃᓄᔁ1.2021•ᐰ•⚪ᱥᐙᔜḄᓄ!"ᑡ$%&“(⎃*+⏀”./01Ḅᓄ23Ḅ45A.6789B.;*<=C.>?@AD.B□ᖆEFGᑴ2.2021.ᐰ•⚪JKᙢᳫN᝱P᛻!RST&UᯠWXYZ4TRSḄ[\]^஺"ᑡᨵᐵbcdefg᎝Ḅ45A.ijᜐᳮmnᵯpB.qᦈmsᛛᧇC.vwxyz{|}D.~Yᵨ3.2021.ᐰ•⚪"ᑡdᔠᓄḄ45A.ᣩᑡYᐗᕜᑴᐗᕜ⊤B.┱ᡂᑖḄẆb¡¢ᜧ¤¥C.ᡃᓄ§¨©ªᙠ$¬ᑴGḄẆ®f¢ᜧᡂ¯D.⍝±²Ḅ³´µW¶·¸©Ḅᑖ´¹!ᓄᡂº»¼½¾¿ÀḄÁ4.2021ᐰ•⚪ᑖ´4᪀ᡂᱥḄÃÄÅ»஺"ᑡᱥÆᨵÇᑖ´Ḅ45A..ÇᓄÈB.ÇᓄÉC.ÊÇD.Ë⏚Í5.2021•ᐰ•⚪Î4ᡃÏÐÑNÒÓdÔÕḄᱥ!"ᑡᨵᐵÎḄ¹c½ÖḄ45A.ÎᡂÎ×¹Øᑖ´ÔÙÚᑖB.NÒÔᵨÛÜḄÝcÞßÎàᓄC.ᨵÎNᡂḄáâ»ãᨵ⏚ᡈåæD.ᵯçÎèé᩽ëNḄìíᢝïG6.2021ᐰ•⚪"ᑡèðñdòᑮᐸâèõḄḄ45ö÷ßøB.ᦈùì

1.úûWüýþₚD./••,┤ᩩ┑7.2021•ᐰ•⚪ᔠ!"21#$Ḅ&⌕(ᩞᧇ+᝞-!Ḅ./0᪀23-஺5ᑡ789:Ḅ"A.(<=(ᐗ?7///B../Ḅ᪶ᑁC/ᦪ!22C.ᐗ?F

2D.t2°CÜ+ᔣ65gᵬᱥCḄ⛳ÖáPðᐭ75gf+òᡂÖCC«ᑖᦪ!10%ḄÖá11.2021♦ᐰ⚪ó?ூCONHZ2௃"ôÓ´ᵨ\õஹ[ö÷ẚù¿ᵨஹúû«ᨬýḄÔ᝱ûÿ஺
ᑖᡂឋᕡḄA.B.ᓄC.D.ᓄ12.2021•ᐰ#•$%⚪“()*+,-).᪆”ᓄ112᪶456᝞8ᓄ9:;Ḅ-)<=>?8@ᑡᨵᐵ<=ḄDEFGḄ஺——9IJ®——ᐢIJ•M•IJA.NOPᣚ<=B.9ᐗḄᓄᔠTUᦋWC.ᑖJ,IJḄXYUWᓄD.ᓄ9Z9ᐗ[ᐗḄ\]^_1`213.2021.ᐰ#•$%⚪@ᑡbcZ<=de\]fᜧḄA.h┤⏚kᑖB.ᓄlZmᐭo]pq⏚C.rᙠtZ:;dᓄ_ᮞvD.wᮞeᙠtZxPW\14.2021ᐰ#•$%⚪yᨵ3.3g⏚z,⏚╅Ḅ|ᔠᱥ~Omᐭb]Ḅᓄl~ᐳᡂ4.66g,ᑣI|ᔠᱥZᐗḄ\]A.0.32gB.0.46gC.0.64gD.0.96g15.2021ᐰ#•$%⚪yᨵHஹCஹNஹNeஹ஺ᐗZ⌱〉Ḅᐗᵨᓄ1ᵨt஺tZᐙ◱⇧ᵯᐝḄ;᩽᧕[⊈£¤¥¦ᔠḄᨵ§஺16.2021•ᐰ#•$%⚪¨᩟ª«“᯼ᦋ”ᜧḄᨵᦔ®¯ᐸZ“”ᢣᜩᯠᐸ´⌕ᡂᑖᵬ·஺ᵬ·ᙠtZ:;Ḅᩩ¹[º»ஹ;ᐸ¼ᐰ:;Ḅᓄ1½c¾_:ᙠÀ:ᩩ¹@Á\]Ḅᵬ·[<=ᡂ10.8gÂ0ஹ4.4gCO2,Á\]ḄCO,ᑣÃm<=ḄḄ\]_஺17.2021.ᐰ#•$%⚪᝞8ᡠ>ÅPᐜᔣÈᳫÊBᜐÌmÍ]ÎÌmÏÌÐÑÒᑺdÔÔ᧳ÖÈᳫÊ)×ᑮ~_Ù⁐ÛÜÝᔣAᜐÌmÍ]ḄÞßàád)×ᑮBᜐ~W£ᵫãäå-æᐹᨵḄឋ\ÛèᦋᵨᐸéêëåyìíḄyîÒÎᑏåðêë஺

3ñCÐóÒᑺôᳫÊ□118.2021♦ᐰ#•$%⚪᝞8ᡠ>ÅP«õö÷ø஺1
èᵨãÅPùøCO`úCOAᜐûᐭBᜐ_ᓄü)×ᑮḄyî_2
èᵨãÅP$%ýþÿ
AᜐᐭḄCO,BᜐFe23,ᑣBᜐḄ;CᜐḄᓄ;ᨵ“⁐”ᢈᵯ!ᰚ#Ḅ$ᓄ%ᑮ'$(ᨵᦔ*+᣸-./ឋ1ᑏ-345Ḅᓄ19.2021•ᐰ8•9:⚪ᵬஹ>ஹ?ஹ@ABCᓄDEḄFᓄᔠᱥᙳJᨵKLMᐗOᐸC?ᙠRSTDᵨVᦋX⏚ឋZ[>Ḅ\]ᑖ_`a56,bcdeᨵ᝞gᡠiḄjᓄᐵl“”⊤i45nopᑖᱥ`'45ᩩrsᶍu஺ᵬḄᵨ⌶A@ḄᓄA;>?Ḅᓄ20.2021.ᐰ8•9:⚪RSTDzᑴ|}~ḄᓄᵨV⌱ᑭᵨᓄzᑴ``aᑖᦪ16%Ḅᓄ-azᑴḄᐭAgNC3ᨵ%ᓄḄ`aᡂ`aḄ2.5ᑣzᑴḄᓄḄ``aᑖᦪo▭ᑮ0.1%
,1ᑏ-ᩩḄ஺21.2021ᐰ89:⚪C8¡CⅾJ£ᓄ¤¥᝞¦§Ḅ¨©ª«C“ᢗ®¯ៜᐝ²”ᒹJ¤¥
ᙠ´µ¶·¯¸ᑮª¹T%ᑮº(»ឋ஺1
☜½¾
H2O+C=------------+C஺஺¿4⚓ᐳ21⚓

4(2)¡£ᵨÂÃÄᑏḄÅÆÇÈÉÊË⁐ᑭᵨÌÂḄÍÎឋ`Ï22.(2021ᐰ8•9:⚪)᝞g1AᑭᵨÑÒ»Ó|¾C$JaḄÔÕg2AᑭᵨÖ×ᘤ|ÔÕᑁµ~ஹ$}~ÚÛÜÝÞeßᓄḄàá஺$~Ö×ᘤÖ×ᘤgI82প1ᑖ᪆g2Càá(½“X”“Y”ᡈ“Z”)]5ḄAÛÜḄßᓄ஺(2)|¾C$JaḄoæC⌱çÑÒḄèAÍÎÏ23.(2021•ᐰ89:⚪)éK␺ë✌⛲ḄᡂᑖAîï(Zn-CuᔠL)ðAîLñò᝞¶óᫀ:ᫀ
a᪵÷VÓøCᐭùaḄúû⏚üýAᔲᨵÿ
஺ᨵ
ᑣᑣ஺ᫀ᪵!"#$ᨵᑣᑣ஺ᫀ%ᵨᓡ()ᜳ᪵ᙠ⏀-./012345678஺(1)ᑏ4ᫀ:ᡠ<=Ḅᓄ@AB஺(2)⌱4EᔠᫀḄ:G"#$HIJKL஺(3)ᑏ4ᫀ%MNḄO78o24.(2021.ᐰR•TU⚪)᪷Y᝞[ᡠ\]^_`aᑡc⚪஺(1)[1ᡠ\]^dᵨefgᑴi஺জᑏ4ᑭᵨl]^ᑴ:GiḄᓄ@AB஺ঝᑏ4nfজᑴiḄo஺(2)p[2ᡠ\]^Ḅaqrst[1u
]^Mvbqrstᦈx]^Mv,zpᑴḄi{|஺}p[2Ḅ]^⊡᦮ᑮḄ஺

51225.(2021ᐰRTU⚪)ᓭ"ᨵᐰRᜧᑁ▮"ᵪ஺"ᵪ3Ḅ"◀᜜z¡ᨵCaCLMgQONa2sO4%Gz#ឋᩖ®஺¯°I!Ẇ°ឋ@³´µ¶ᐸᡂᑖº»nf¼½ef᝞a¾¿:"᪵ᐭÁḄÂᐙᑖ#IÄÅÆǾ¿ᔣÆ$ÉÊᐭÅNaOH#$ஹNa2cO3#$OBaCk#$ÑÊÒNÄᙳ☟^Õᔣ/Ö×$ᐭØ஺efÙÚ⊤Ü᝞aᡠØ(ØᙳÅefÒNḄᓄ@ABef78)ᨵß⁐áâ2NaOH+MgCl=2Mg(OH)"¡ᨵ22জNaOH#$
.I+2NaClMgCl2ᨵß⁐áâ"¡ᨵঝNa2c஺3#$—
CaCl2ᨵß⁐áâNaS0I+BaCl=BaS0"¡ᨵ2424ঞBa஺#$
I+2NaClNaSO24(1)}ᗐ/Þ⊤ÜḄᓄ@AB஺(2)ᨵé@ê/ÞefᐭBaCk#$Äoë"¡ᨵNa2s஺4,ᐸKLì஺lé@êzpᨬîᡠ3ß⁐áâÆ4ᐭÁḄïð⏚4Ḅᑣë"¡ᨵNa2sO,஺ò:óé@êô⌕ö᦮ØḄ÷øùᓽz345678ö᦮ÄØḄ÷øù(ᵨ⊤ÜḄùû⊤\)஺¯°Eᢣþὁ
◤⌕
ᑮ᝞1ᐭᐭBa(OH)₞"Na’CO,#"'-i±a-T%"a&”|%"b)&+ᓄḄ.|1(3)2ᐭḄNa2cO3%"%"a89ᨵ;<ᩖ>?@ABCDE(F⌕ᑏABHIJKL)஺N6⚓ᐳ21⚓

6(4)2ᐭḄNa2cCh%"〉RS%"aTUVW᝞XYZᔣ%"a8ᐭ\⏚%"aḄpH^ᓄ᝞2ᡠ`஺aᐭVimLḄ\⏚b%"8Ḅ%>c;ᑖfghmiJniᡠ%"ᑮ+ᓄjḄ>mini(kᡈ“=”)஺2(5)2ᵨ10gpqᑖ^>Ḅrsᓄjt.u40g\⏚vwᑴy+ᓄjᐙᑖvw{ᡠ%"Ḅ>c47.8g஺ᑣ}ᔠᱥ8rsᓄjḄ>ᑖᦪ?

7ᫀJ᪆1.ூᫀ௃Dூi௃ᓄ^ᓄJᱥᳮ^ᓄḄᑨfூ᪆௃Aஹᨵᱥ>ᡂᱥᳮ^ᓄᦑ⌱⚗┯Bஹ¡¢£ᨵᱥ>ᡂᱥᳮ^ᓄᦑ⌱⚗┯Cஹ¤¥¦§ᨵᱥ>ᡂᱥᳮ^ᓄᦑ⌱⚗┯Dஹ¨□ᖆ«¬ᑴ®ᓄ^ᓄᦑ⌱⚗¯°ᦑ⌱Doᨵᱥ>ᡂḄ^ᓄ±ᓄ^ᓄᨵᱥ>ᡂḄ^ᓄ±ᱥᳮ^ᓄஹ¡¢£ஹ¤¥¦§²ᱥᳮ^ᓄ஺ᓄ^ᓄḄᱯ´ᨵᱥ>ᡂ஺ᑨµᱥᳮ^ᓄJᓄ^ᓄḄ¶·ᔲᨵᱥ>ᡂ஺¹ὃiὃ»ᱥᳮ^ᓄJᓄ^ᓄḄ¼f½ẠឋÀÁÂÃ⌕ᢕÅᐵÇiᔲᨵᱥ>ᡂÈ⚪ÊËÌ᧕Î஺¹ὃiÏ⌕Kᙠ⌱Ñ⚪JkÒ⚪8஺2.ூᫀ௃Aூi௃ᓄuÓ᛻ஹÒÕḄÖ×Ø■Úூ᪆௃:A.ÜÝᵯß89ᨵᨵàḄáâᡠCãäᜐᳮÜÝᵯßæ⌼ᡂèéÖ×ஹᙢXëÖ×ìí┯B.îᦈÜðᛛᧇóô⁚ö÷øùôúû⁐Ö×ìí¯°C.ýþÿ
D.ᵨᓄᧇḄᱥ#$ᓄ%Ḅ᣸'()*+ᦔ-஺ᦑ⌱1Ao᪷3⌼ᡂ6᛻Ḅ89■;6᛻Ḅ<=ᩭᑖ᪆஺A⚪ὃDE⌼ᡂ6᛻Ḅ89■;6᛻Ḅ<=FGHᜧ஺3.ூLᫀ௃CூOPQ௃ᓄRḄSᔊUVẆXYZூ)᪆௃)1Aஹ\ᣩᑡ_ᙠᓄRaḄb⌕defgEᐗiᕜklmnᑴpᐗiᕜk⊤ᦑ⌱⚗s஺BஹtᓄRuvw┱yz{|pfᵫ$~ᡂḄᦑ⌱⚗s஺8⚓ᐳ21⚓

8CஹᡃtᓄRuᙠᑴḄẆX|Eᜧᡂf$ᓄf%⏚ᦑ⌱⚗s┯஺Dஹ⍝Ḅ8~ḄᑖRsᓄRᡂ\¡¢aḄ£Rᦑ⌱⚗s஺ᦑ⌱1Co᪷3£Ru¤ᔜ¦ᙠ£RapḄde§¨ᑖ᪆)LA⚪.A⚪©ªᓫE)ᓄRḄSᔊUᐵᓄRR£ᡂᨵᑭ°±RR²ᓄRḄᐶ´µ¶RḄ·¸¹º».4.ூLᫀ௃CூOPQ௃ᑖஹ8ஹ¼ஹᐗiVᱥ½¾¿ḄᐵÀூ)᪆௃)1A.Á$ᓄfᵫÁ$ᓄᑖ᪀ᡂḄHÃ$ᑖHᔠ⚪¡B.#$ᓄ═fᵫ#$ᓄ═ᑖ᪀ᡂḄHÃ$ᑖHᔠ⚪¡C.Æ$fÆ᝱Ḅ$fᵫ$ᑖ᪀ᡂḄÈᔠ⚪¡D.%⏚fᵫ¼V%⏚᪷¼᪀ᡂḄHÃ$ᑖHᔠ⚪¡஺ᦑ⌱1Co$ᑖ᪀ᡂ$$~Ãᨵ$ḄÃᨵ$ᑖ஺⌕É)LÊËÌ⚪Í⌕ᳮ)~ÏÐᑖஹ8ஹ¼ஹᐗiVᱥ½¾¿ḄᐵÀ9V¾ÑᐵḄOP.5.ூLᫀ௃BூOPQ௃ᑖஹᵯ)Óz{ஹÔÓVÕÓ9ᐸ␺Øூ)᪆௃)1AஹÓÙᡂÓÚÓᑖ¿Ḅ¿◞ÙᜧÓᑖAÜÝᨵᦋÙᦑ⌱⚗s┯஺Bஹßà◀âÓḄãäឋ┛ஹ╅ᓄᔠᱥèÔÓÕᓄᦑ⌱⚗s஺CஹᨵÓᡂḄé-Hêᨵ⏚ᡈìí᝞ᙠ$ᡂÓᦑ⌱⚗s┯஺Dஹᵯ)Óz{ï᩽Ḅññòóᦑ⌱⚗s┯஺ᦑ⌱1B„Aஹ᪷3ᑖḄôAឋ½§¨ᑖ᪆ᑨö஺Bஹ᪷3ßà◀âÓḄãäឋ┛ஹ╅ᓄᔠᱥ§¨ᑖ᪆ᑨö஺Cஹ᪷3ᨵÓᡂḄé-§¨ᑖ᪆ᑨö஺

9Dஹ᪷3ᵯ)ÓḄz{gZ§¨ᑖ᪆ᑨö஺A⚪FGHᜧ÷øᵯ)ÓḄz{gZஹᑖḄôAឋ½ஹìíḄᨵÓᡂḄé-ùf)LA⚪Ḅᐵú஺6.ூLᫀ௃DூOPQ௃ᓄRz{ûᫀḄüýVþÿஹ
ឋஹᔠᐸᵨஹḄ┤⇨ᐸ■ஹ
ூ᪆௃A.ᱏᱏᑜ"#$%&ᑮᱏ($ᶇ*+,#-.ᱏḄ/0ᜧ2ᱏḄ/0#3ᫀ567B.
8Ḅ09:;#ᵨ<=>ᵨᩭᦈA
8#᣸CḄ:Ḅ8DᓽFᦈAḄ
88D#3ᫀ567C.
ឋḄ3GHIJḄKLMNᙠ:P#QRSTUᘤ᜜X#YIJZᨵ
\ᑈC#^_
#3ᫀ567D.`JaḄb┑def
gh#Nᨵ┤⇨#iGjkb┤⇨Ḅᩩm#3ᫀ┯o஺ᦑ⌱D஺A.᪷t9u/0Ḅ3Gᩭᑖ᪆7B.᪷tᦈA
8Ḅ3Gᩭᑖ᪆7C.᪷t
ឋḄ3Gᩭᑖ᪆7D.᪷tb┤⇨Ḅᩩmwjk3Gᩭᑖ᪆஺x⚪z0^{|ᜧ#ᓄ~3ᫀḄ{ὃ~Ḅ⌕#{ᦟe~z#ᙠᐹ8⚪⌕ᐸᳮᳮ#>᪷tᱥḄᱥᳮឋᓄ~ឋᔠḄᑖ᪆ᑨ஺7.ூᫀ௃Bூ¡௃᪶᜜ᵯ¤᣸¥¤᪀=§<ூ᪆௃Aஹ¨Ḅ©ªa«ᨵ“”¯°#2ᐗ²#ᦑA-G^567Bஹᵫ¨Ḅ¤᪀=§<>#¨¤Ḅ᪶ᑁ¤ᦪF22,ᦑB-G567Cஹ¨¤Ḅ᪶᜜ᨵ¶·ᵯ¤¸#¨ᐗ²¹2º¶ᕜ¼#ᦑC-G^567Dஹ¨¤Ḅᨬ᜜¸ᵯ¤ᦪ{2,;24,ᙠᓄ~¾aᜫÀᵯ¤#ᦑD-G^56஺ᦑ⌱Bo¤᪀=§

10¤ᦪ=᪶᜜ᵯ¤ᦪ#F¤7ʤᦪு᪶᜜ᵯ¤ᦪ#F□Ȥ7ʤᦪÑ᪶᜜ᵯ¤ᦪ#F▢Ȥ7tÓᑖ᪆.x⚪z0^ᜧ#ὃ~Ô¤᪀=§<ᐸ§ÕḄᳮ#.6Ô¤a᪶ᑁ¤ᦪ᪶᜜ᵯ¤ᦪÖ×ḄᐵÙ{⚪ḄᐵÚ.8.ூᫀ௃Cூ¡௃ᓄ~3ÛÜஹᓄ~¾ḄÝᔠÞᵨூ᪆௃AஹÇᓄ~3ÛÜßà¾ᩩm#Nᨵáâ#56Ḅᓄ~3ÛÜFãᵯஹஹ2H2஺ä2H2T+஺2æᦑ⌱⚗┯o஺BஹÇᓄ~3ÛÜNᨵáâ#f
è☢Nᨵ᪗ëT,56Ḅᓄ~3ÛÜF4P+5O—2PO,ᦑ⌱⚗┯o஺225CஹÇᓄ~3ÛÜìᑏîᐰ56#Ǿ{KðᓫKðᓄᔠᱥ¾ᡂóKðᓫóKðᓄᔠᱥḄ¾#2ᣚ¾#ᦑ⌱⚗56஺Dஹ;õᡭ{÷⏚ùúḄûª#eüýaḄþ⏚¾ᡂÿᓄ
ஹᓄḄᓄNaHCC>3+HC1=NaCl+C0T+H0,ᦑ⌱⚗┯஺22ᦑ⌱C,᪷ᓄᑨḄ◤ὃ⇋ᵨḄ"ᳮ$ᔲ&ᓄ'ᑏ$ᔲ&$ᔲ)*&+ᩩ-$ᔲ&T1Ḅ᪗/$ᔲ.1ᓄ'ᑏ2᪷+ᱯ4567Ḅ+89:ᓄᔠஹᑖ=ஹ>ᣚஹ@ᑖ=A஺7⚪CDEᜧᓄᑨ$ᐜHᓄ$ᔲ2H)*2H+ᩩ-2HIJKLᨬNOPᦋᡂST&UVWX67+89Ḅᱯ4$=Y7⚪Ḅᐵ[஺9.ூYᫀ௃Aூ`ab௃cJᡠeᐗghᐸjᵨஹkᓄlmnkᓄjᵨஹopḄ┤⇨hᐸ■tஹᓄḄᓄឋvூ=᪆௃=A.cJxḄyzᐗg{⌕ᨵ~ஹஹஹஹஹ┶ஹஹஹỚஹẬ஺ỚpcJ◤ḄyzᐗgỚ᧕cJᵬᜧᦑA┯஺B.ᵨᑺ◀$ᑺᐹᨵkᓄjᵨᦑB஺C.ᓄ+ᡂ⏚⏚⏚ឋᡠḄpHᕈ¢⏚ឋᦑC஺D.ᙠop⊤☢¦§¨©■ªop┤⇨ᑭᵨ◞IḄ"ᳮᦑD஺

11ᦑ⌱A஺A.᪷ᓄᐗgncJᏉ°ᐵ±ᑖ᪆஺B.᪷ᑺkᓄjᵨᑖ᪆஺C.᪷ᓄ+ᡂ⏚´µ=Y&஺D.᪷op┤⇨ᩩ-h·ᨵḄop■┤Ḅ¸¹´µᑖ᪆=Yᓽ©஺ᓄn»¼¼½ᐵ»¾E¿ᓄÀᓄ`aᩭ=»xÃÄÅ⚪஺10.ூYᫀ௃Dூ`ab௃È=DÉPhᐸᵨஹÈvḄvzᑖᦪஹÈ=ឋÈ=DḄᐵ±ஹËᨔhᵨூ=᪆௃=AஹtJCÏᵬஹÐÑXᱥvḄÈ=D½SÓ⌱⚗Ô&BஹÕtJCÏᵬஹÐÑXᱥvḄ⛳È×:È=D½SØÈvvzᑖᦪ½SAᓣÚÛØ2Ý,ßàᡂE⛳È×á$ÈvvzᑖᦪßEàØÈvvzᑖᦪ½SÓ⌱⚗Ô&CஹᵬḄÈ=DâÚDàᓄãäåᜧÐḄÈ=DâÚDàᓄãäåæᵬxçᨵèzÐÏ©éêëᓾí⛳È×ḄîïᵬÓ⌱⚗Ô&Dஹ12஺:ÏᵬḄÈ=D$30g,65gᵬᱥvḄ
È×xÈvvz=65gxö⚶&XlUUgT100%=15g,ᔣ65gᵬᱥvḄ⛳È×xþᐭ75gᡂᑖᦪ77%X100%«10.7%Ḅ⌱⚗஺ᦑ⌱Do᪷%ᱥḄ'()*+ᑨ-./0(1ᱥḄ'(ᜧ3456᪷%ᱥḄ'()*+ᑨ-7Ḽ0(Ḅ9ᓄᱥḄ'(9ᓄ;<6⛳>>⛳>?@+ABCᓄ6⛳>Ḅᑖᦪ=ḄEFx100%6100g+'(Hᑖᦪ=IJx100%6'()*KLᙢ⊤OP'(9ᓄḄQRS'()*+TPU/ᙠU0(WḄ'(U6U/0(WUḄ'(KAUXKU60(YUᱥḄ'(Z[U.11.ூ]ᫀ௃Cூabc௃dឤLRḄfᵨh12⚓ᐳ21⚓

12ூ'᪆௃'lmHnᨵpஹrஹsஹtuvᐗm᪷%dឤLRxfyzᐗmv{9lm|}ᑖ'~ᡂ/vឋᕡḄnᐗmK~ᡂtᓄsஹ/tᓄpᨵᕡᑣK஺ᦑ⌱Co᪷%dឤLRxfyzᐗmv{9ᔠ⚪ᑖ᪆']஺⚪(ᜧdឤLR(xfyzᐗmv{9)Kᮣᵨ']⚪Ḅᐵ஺12.ூ]ᫀ௃Aூabc௃ᓄxf{Ḅ¡ᔠᵨஹfᵨ¢£'¤¥¦ூ'᪆௃'ᵫ¢¨xfO©axfᵫᓄª>tᙠc«ḄᩩWxf~
ᡂ>ᓄ®¯°2H2s+0—2SX+2HO»22A.xfᵫ/vᓫ¹/vᓄᔠᱥxf~ᡂº/vᓫ¹º/vᓄᔠᱥ»¼½ᣚxf⌱⚗6B.ᙠxfᱥHªᐗmÀ+1Áᙠ~ᡂᱥHªᐗmXÀ+1Á⌱⚗┯Ã6C.ᵫ¢¨xfO©axfyzÄÅḄv{9⌱⚗┯Ã6D.ᓄªHªᐗm¹ᐗmḄ4(lx2)32=116,⌱⚗┯Ã஺ᦑ⌱Ao¨Ê¢¨᪀̯©ᑖ᪆xfᱥஹ~ᡂᱥÍxfᩩᑏPxfḄᓄ®¯°%ᐸÐᑖ᪆ᑨ-ᨵᐵḄÑ⚪.⚪ÒÌ¢¨£ÅḄxfÓ©ὃÕÖ¢¨×YᓄxfḄØbÙÒÌ¢¨O©ÚÛ¨ᱥ>¢¨£ÅὶÝÞᩭஹS¢¨Ḅà(ᑖ᪆ᱥḄ9ᓄ']á{⚪Ḅᐵ஺13.ூ]ᫀ௃Dூabc௃dឤLRḄfᵨூ'᪆௃'Aஹâ═⏚åᙠæ}ᩩW~ᡂ═⏚åஹtᓄ═>txfzt⍎Pxfzèéêᦑ⌱⚗┯Ã஺BஹtᓄëHæᐭíîï⏚~ᡂrᓄë>7ḼxfḄèḄ⌲ñéêòóᐰxféêò0,ᦑ⌱⚗┯Ã஺CஹõᙠöH«÷zᓄᮞù~ᡂtᓄp>úxfzèéêᦑ⌱

13⚗┯Ã஺Dஹ~ûᮞèᙠöHü½9~ûᮞ¹xf~ᡂªtᓄ┛~ᡂḄªtᓄ┛K¹öHḄtᓄpxf~ᡂp⏚┛>xfzèþᜧᦑ⌱⚗஺ᦑ⌱D஺᪷%dឤLR,xfzèþᜧÿᨵ
ᱥ,ᑖ᪆ᑨ஺⚪ᜧᳮឤஹ!"ᜧḄ$%&'()⚪Ḅᐵ+஺14.ூ)ᫀ௃Cூ123௃ᓄ56Ḅ78ஹឤḄᵨூ᪆௃:;⏚=>;⏚╅@Ḅ;ᐗBCᐰEᓄᑮ;⏚G@HIJKᔠᱥ@;ᐗBḄ&:4.66gxN=0.64g஺ᦑ⌱:C஺ᓄ5⍳SឤᓽḄᱥḄU>VWXᡂḄᱥḄU>&HZᓄ5[ᐗBḄ\]^J_Ḅ\]ஹ`aᦪ^஺ᓄ5⍳Sឤᓽᓄ5[ᐗBḄ\]^J_Ḅ\]ஹ`aᦪ^c&dᑏᓄ5fg6ஹᑨᱥḄᓄ56ஹᑨᓄ57ᦪஹhᐵf☢78ḄjẠ஺15.ூ)ᫀ௃NeCOூ123௃ᓄ56ூ᪆௃:lᨵ
mᵯopqrstuv⁐Ḅᐝᓄ5ឋz{|
@}~ᐙ◱⇧ᵯᐝ~
Ḅ
ᐸᓄ56ZNe஺᩽᧕⊈ᔠḄᨵ
&ᓄᐸᓄ56ZCO஺ᦑ)ᫀZ:NeCO஺✌ᐜ᪷⚪(ᱥḄᓄ5ᯠ᪷⚪¡ᡠ£¤ḄᐗBஹdᑏᓄ56Ḅf¥>¦§ᑏtᱥḄᓄ56ᓽ~஺⚪ᜧ¨©ª«¬ᱥḄឋஹᵨ⌶ஹ¯ᡂ°ᓄ56Ḅdᑏ&'()I]⚪Ḅᐵ+ᡠᙠ⚪o²³´µ¶tḄᐗB@⌱·ᩭ¯ᡂᱥ஺
16.ூ)ᫀ௃¹ºᑮᵬ¼ḄḼ¾3+2O^CO+2HO16g222¿14⚓ᐳ21⚓

14ூ123௃ÂᵨÃᧇÅÆ᛻ḄÈÉஹÃÊÃÊḄᩩÌூ᪆௃:ÃÊ◤⌕uoÏÐÑaᩩÌ:জ~Ãᱥஹঝ
ᡈ|
ஹঞ¹⌕ºᑮḼ¾3ᦑᵬ¼ᙠ|
@ÃÊḄᩩÌ&
Ö×ஹ¹ºᑮᵬ¼ḄḼ¾3஺ᜩᯠ
ḄÙ⌕ᡂᑖ&ᵬ¼ᵬ¼ᙠ3ÃᩩÌÚÃÊXᡂÛᓄ>ÜḄᓄ5fg6ZCH4+2O—C0+2H2O஺22ᙠ3ÃᩩÌÚḄᵬ¼
Xᡂ10.8gH2஺ஹ4.4gCÝ2>ḄCO,ᵬ¼@ḄÞᐗBCᐰEᓄᑮÜ@ᑣᵬ¼Z10.8gxàx100%áx100%
=lo1O4.8g,Xᡂᓄ:4.8gxgx100%-4.4gx^x100%
+âX100%
=5.6g«ãäḄ
ḄZ10.8g+4.4g+5.6g-4.8g=16g஺ᦑ)ᫀZ:
¹ºᑮᵬ¼ḄḼ¾3CH+2O—C0+2HO:16g஺4222ÃÊ◤⌕uoÏÐÑaᩩÌ:জ~Ãᱥஹঝ
ᡈ|
ஹঞ¹⌕ºᑮḼ¾3ᜩᯠ
ḄÙ⌕ᡂᑖ&ᵬ¼ᵬ¼ᙠ3ÃᩩÌÚÃÊXᡂÛᓄ>Üᓄ5[ᐗBḄ\]>ᙳ^ᑖ᪆)஺⚪ᜧª«ÃÊḄᩩÌஹᓄ5fg6Ḅdᑏf¥ஹᮣzçᵨឤV&'()⚪Ḅᐵ+஺17.ூ)ᫀ௃ᑖ_ᙠᙢçéê⁐ëìíî>ïð⏚ñᔠᳮᓽ~Ýூ123௃ᑖ_ூ᪆௃:᝞óᡠôõöᐜᔣøᳫúBᜐüýÜþüÿ
⏙ᑺ᧳ᳫᑮ⁐ᔣAᜐḄ!"#$ᑮBᜐ%&'(ὅ*ᨵ,--./0ᑖ23ᑮ4
Ჩ6஺ᕈ9ឋ;<
=%&ᵫ?@ABCᐹᨵḄឋE<ᑖ2ᙠGHᙢ3஺ᦋᵨL⁐MNOP⏚RᔠᳮᓽVWXYAZ[\Z]஺ᦑ_ᫀaᑖ2ᙠGHᙢ3L⁐MNOP⏚RᔠᳮᓽVW஺᪷c!"#$ᑮBᜐ%&ᑖ᪆஺e⚪ghGᜧjkᑖ2ḄleឋE

15ூ௃ᓄஹ!ᓄḄᓄឋEூo᪆௃oa(1)!ᓄᐹᨵឋ;ᓄᙠᩩᡂOᓄVᑮḄZ]v⁐wx⌲z%ᡂ&⁐஺(2)!ᓄᐹᨵឋ;ᓄᡂOᓄ!"#$ᴻA6AZḄZ]<&|⁐}~⌲z%v஺Cᜐᓄ£ᓄ┛ᡂ⏚┛¥¦OḄᓄ§¨©aC0+2Ca(OH)=CaCOJ+H0„232³ᵯᵯoᰚ¶Ḅᓄ@ᑮO·Ḅᓄ§¨©aeO—4Fe+3O2F232ᦑ_ᫀa(1)v⁐wx⌲z%ᡂ&⁐³ᵯ(2)&|⁐}~⌲z%vC0+Ca(OH)=CaCOI+H0FeO—4Fe+3O22322232(1)᪷c!ᓄᐹᨵឋ;ᓄᙠᩩᡂOᓄᑖ᪆o_஺(2)᪷c!ᓄᐹᨵឋ;ᓄᡂOᓄᓄ;½¾¿Mᮞ%ÁÂᵯoᰚ¶Ḅᓄ@ᑮO·ᑖ᪆o_஺e⚪ghGᜧjk!ᓄḄᓄឋE(VÃឋஹឋÄ)ஹᓄஹᓄḄZ]ÄÅ;ᮣÇ3ᵨ3)2௃CaO+H0=Ca(OH)222ூ௃ᱥEḄÔ␺Öூo᪆௃oa×c⚪ØVᵬஹÚஹÛஹÜ<Ý6ᓄÞßḄàáᓄᔠᱥᙳãᨵä!áåæᐗèᐸ6ÛᙠêëìÞᵨíᦋî⏚ឋïðñAÛ£ᓄ┛ÚḄ[òᑖ2E56,öÚ;ᡂ£ᓄ┛ñAÚᓄ┛£ᓄ┛;ᡂᵬᵬ;ᡂᓄ┛ñAᵬ⏚┛⏚┛Ü;[÷øᓄ£ᓄ┛ஹᓄ┛ᑖÖ;ᡂÜñAÜùᓄ┛ᡈú⏚┛ûñAḄᱥEüý᪾ÿ
ᔠᑖ᪆ᵬ⏚┛ᑣ⏚┛Ḅᵨ⌶ᩞᧇ(ᡈ⊡┛ᑺ!ᔠᳮᓽ)%&'CaCkூᡈCa(N()3)2!ᔠᳮᓽ௃%&01ᓄ┛ᑣ1ᓄ┛ᑮ41ᓄ┛Ḅ56789CaO+HO=Ca(OH)ᦑ@:ᩞᧇ(ᡈ⊡┛ᑺ)CaQூᡈCa(N()3)2௃CaO+HO=222Ca(OH)2஺DEᵬஹ0ஹGஹ'HIᓄJKLḄMNᓄᔠᱥᙳQᨵSTNUVᐗXᐸIGᙠ[\Kᵨ]ᦋ_⏚ឋab%&G0Ḅcdᑖefg56,k0lmᡂG%&o16⚓ᐳ21⚓

160Glmᡂᵬᵬlmᡂ0%&ᵬᵬr'lcstᓄGஹ0ᑖulmᡂ'%&'v%&Ḅᱥfwx᪾z
஺{⚪}⌕ὃKLᱥfḄឋf}⌕ᑭᵨtᓄzKLᱥfḄឋfᑖ᪆ᨵᐵ⚪ᔠᔜ7☢Ḅᩩ&஺20.ூᫀ௃16.3%gᦪ(ᡈgṹm┤!ᔠᳮᓽ)ூ¡௃ᨵᐵᓄJ56789Ḅ¢£ஹ¤ffgᑖᦪḄᭆ¦¢£ூ᪆௃§ᵫ789§NaCl+AgNC)3=AgC"+NaN()3©ᓄªr©ᓄ«Ḅfg¬§58.5§143.5,ᵫ®©ᓄª¤¯Ḅfgmᡂ°±fgḄ2.5²ᑣ³ᑴḄ©ᓄª¤¯Ḅ¤ffgᑖᦪµ▭§-^-XIOO%a16.3%·m{¸¹Ḅºg143.5x2.5ᦪµ▭gḄ»¼ᑣ³ᑴḄ©ᓄª¤¯Ḅ¤ffgᑖᦪ»ᜧᡈgṹm┤µ▭gḄ©ᓄª»¾¿À³ᑴḄ©ᓄª¤¯Ḅ¤ffgᑖᦪ»ᜧ!஺ᦑᫀ§16.3%gᦪ(ᡈgṹm┤!ᔠᳮᓽ)஺᪷E56Ḅ789Â&©ᓄªr©ᓄ«Ḅfg¬Ã᪷E¤ffgᑖᦪḄ¢£Ä9¢£஺Å⚪ḄÆÇÈᜧÉᳮ789ᓄJ789ḄÊËÅ⚪ḄÌẠ஺21.ூᫀ௃HᙠKÏÐḄᓄJឋfÈÑÒ2ூ¡௃ᓫfḄᓄJឋfஹfgÔឤÖ×Ḅ6ᵨூ᪆௃§(1)ᵫfgÔឤÖק56ØÙ®eNÚஹᦪÛᙳÈÜᵫ56ḄᓄJ78956Ø4ஹ1ஹ®eÝᦪᑖu2ஹ1ஹ1,56ÙḄmᡂᱥI4ஹ1ஹ®eÝᦪᑖu0ஹ1ஹ1,᪷E56ØÙ®eNÚஹᦪÛÈÜᑣÞ¼2Ý4®eᑣᓄJ9H2஺(2)ßᵨàáᑴᡂḄàáḄ}⌕ᡂᑖâãäå¾ᵨßæᑏâãḄèélêëìíÈî⁐ðᙠKÏÐḄᓄJឋfÈÑÒ஺ᦑᫀ§(I)H2(2)ᙠKÏÐḄᓄJឋfÈÑÒ஺(1)ᵫfgÔឤÖק56ØÙ®eNÚஹᦪÛᙳÈÜòóᑖ᪆஺(2)ßᵨàáᑴᡂḄàáḄ}⌕ᡂᑖòóᑖ᪆஺Å⚪ÆÇÈᜧôõKÏÐḄᓄJឋfÈÑÒஹᓄJ56ØÙ®eḄNÚᦪÛc!

17Å⚪Ḅᐵö஺22.ூᫀ௃XøùᙠúûIür1û56kmᡂᱥூ¡௃úûḄýᡂூ᪆௃§(1)øùÿ
ᜧḄᑁᜧḼḄὑᑁ⌲!"#$ᐰஹ'()ᓾ#+',-./ᦋ12#D4ᡭ6789ᜳ;<ᜧᨬ>ឮ@#A஺C2EFGXIḄJḄ1ᓄ஺(2)NOᙠQERST/ᡂᱥJWXᵨZ[\QEḄ]஺ᦑ_ᫀab(1)X2(2)NOᙠQERST/ᡂᱥJW஺ᙠᨵQḄefgᘤEiᵨjk[\QE]lmnop⌕rstuv4bজḄeឋy2ঝᡠᵨ|}~J2ঞᦪo\⌕)ᓾᑮ'(2@ᡠ⌱◀ᑺ⌕ᐹᜓtuᱯbᙠQEj(RSQEḄ)2Ḅ᝱a2/ᡂḄᱥa᝱2ᑖ᪆_஺⚪(,ᜧᵨjk[\QE]Ḅmnᳮஹrs¡⚗£J¤¥_⚪Ḅᐵ§஺23.ூ_ᫀ௃Zn+H2s04=ZnSC)4+H2T¸⏚º»¼ºḄ½¾¿ÀឋÁZÂஹÃZ½ÄW1ÅᑣaÇÃÈÉÊËÌᑣaǽூÍÎ4௃½¾ḄᓄÏឋூ᪆௃b(1)ÐᫀoEÂÑÒÓ⏚/ᡂÓ⏚ÂÑÔḄᓄÏÐÕÖbZn+H2sO4=ZnS0+HTO42ᦑØbZn+HS04=ZnS0+HT«242(2)ÚᔠÐᫀÜḄoÝÞ»¼ßᐸáb¸⏚º»¼ºḄ½¾¿ÀឋÁZÂஹÃZ½஺ᦑØb¸⏚º»¼ºḄ½¾¿ÀឋÁZÂஹÃZ½஺(3)âÃÑ/ᡂÅ⁐Wᓄý,ÑÐᫀäEåḄËÌÑæçbÄW1ÅᑣaÇÃÈÉÊËÌᑣaǽ஺ᦑØbÄW1ÅᑣaÇÃÈÉÊËÌᑣaǽ஺½¾¿ÀឋèéE᣸ᙠÔë☢Ḅ½¾ÑÒÞ⏚ᡈÒÓ⏚/ᡂÞÑÔ᣸ᙠî18⚓ᐳ21⚓

18ë☢Ḅ½¾ñ᣸ᙠ>☢Ḅ½¾òóḄÞ»¼Eᣚᩭ஺âÃÑ/ᡂÅ⁐Wᓄý,Ñ஺⌕öᑭᵨ½¾¿Àèé⊤ᑖ᪆mnÔëùḄ½¾öSÒÓ⏚ஹÞ⏚úÔ>ùḄ½¾,öSÒÓ⏚ஹÞ⏚ëùḄ½¾öñ>ùḄ½¾òᐸÞ»¼Eᣚᩭ.MnO224.ூ_ᫀ௃2HO-^-2HO+0Tᡈ2HC1+CaC0=CaCi+H0+C0Tûüýþ22223222Ḅᩈᩩ
ᐭᑁᩈᩩᑣᡈᔣᑁᐭᮞᮞᑣᓄ!ூ#$%௃Ḅ()*ᦈஹ-ᔠ/0ᑖ234ூ5᪆௃571জ()9:;<=>9:?@AB⌱DEᓄFGᓄ═ᑴJKABᑭᵨNO⏚*⏚┛ᑴJᓄEᓄFᙠᓄSTᓄUᵨVWX)ᡂGO⏚*⏚┛WX)ᡂZᓄ┛ஹGᓄ[ᑏᓄ]/^_`aMnO2bcdefᡠBᓄ]/^_2H2
2^^2H2O+஺2Tᡈ2HC1+CaCO=3CaCl+H0+C0T222MnOzᦑjᫀ72HO^^-2HO4-0Tᡈ2HC1+CaCO=CaCl+HO+C0T»22223222ঝᐹᨵAឋABpqrsḄᩈᩩtᓄᑣABpᮞᡠBABuqrsḄᩈᩩ
ᐭᑁᑣᡈὅᑁᐭᮞᮞᑣtᓄwᦑjᫀ7uqrsḄᩈᩩ
ᐭᑁᩈᩩᑣᡈᔣᑁᐭᮞᮞᑣᓄ!஺
2xyzᐙᑖ|}~ᑺᡠBDa1
ᡠB⊡ᐰ9浓破ᦑjᫀ:酸
1জ᪷9:ᱯ%⌱Dᔠ〉WX[ᑏᓄ]/^_wঝ᪷ឋ⌱Dᔠ〉ᑺw
2᪷~Ḅ⌕⊡ᐰ9:஺ᙠ5@⚪✌ᐜ⌕u⚪Ḅ#$#ᯠᔠ]EḄ#$5j஺

1925.ூjᫀ௃Na2cO3+CaCl=CaCOX+2NaClZᓄ¯*ঝE°Ḅ⏚±WXK²23³)´⁐¶·¶·¸ᑖ¹5জঞঝᡈঞঝজᡈঞজঝ!»ᨵNaOHGNa2c஺3wJ½°¹

20UᔠᱥH;ᓄ)Ḅ*ᑖᦪᘂZX100%=47%[1UᔠᱥH;ᓄ)Ḅ*ᑖᦪ47%஺(1)]^<⏚)_'ᓄ┛8ᡂ<⏚┛ab#'ᓄ)ᑖ᪆(2)]^<⏚)_'ᓄcde8ᡂ<⏚fabᑖ᪆]^<⏚f_g⏚fḄឋᑖ᪆]^ijkᫀmnoᑺḄqrᑖ᪆(3)]^stuvᑖ᪆(4)]^<⏚)_w⏚xᳮzᑖ᪆(5)]^<⏚)_w⏚kt{|ᔠ⚪ᦪ^ᑖ᪆஺}⚪~⌕ὃᱥḄឋ#ᓄkt{~⌕ᑭᵨstஹijkᫀzᱥḄឋᑖ᪆#ᨵᐵ⚪|ᔠᔜk☢Ḅᩩ%|஺