2021年广东省中考化学三模试卷（附答案详解）

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2021
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1Rᐭ〉UBaCk%V◀XḄFI&SO/(4)Ca(0H)2)MgCk*+%,ᡂMg(0H)2.CaQᡠP012&Ca(OH)4-MgCl=22Mg(OH)I+CaCl22(5)
3YᨵUḄZ[ᓄ┛%ᨬ^_ᑮḄ&`ᓄ┛%ᡠPRᐭ〉UḄa⏚bV◀XUḄZ[ᓄ┛(6)cd%ᴻḄeᵨ&ᤅg%■ijklmn⌼ᡂpqr஺ᦑuᫀw(1)ᧅ(2)FeO+6HC1=2FeCl+3HO@ᑖA*+;2332(3)SOt(4)Ca(0H)+MgCl=Mg(OH)1+CaCl2222(5)ya⏚;(6)ᤅg%■ijklmn⌼ᡂpqr஺(1)᪷z
ᵨᑮḄᘤ{u|⚪(2)᪷z[ᓄ)a⏚*+Ḅ,ᡂᱥᑏG012%᪷z*+ḄᱯᑨG*+(3)᪷zB⏚J>?L⁐MNὃ⇋(4)᪷zZ[ᓄ┛)`ᓄ╅*+,ᡂZ[ᓄ╅MN.`ᓄ┛%ᑏG012ᓽ(5)᪷z
3YᨵUḄZ[ᓄ┛{u|⚪(6)᪷zcd%ᴻḄeᵨ{u|⚪஺|⚪ᨵm%ᳮAPᮞwᧇ,`ᓄ┛Ḅ1%aḄᓄឋஹ⏚ḄᓄឋஹᱥᑖFḄ0ஹ012Ḅᑏ&Au|⚪Ḅᐵ஺

1514.ூuᫀ௃ᑖᧅ2H2஺2^^21120+஺2Taজঝঠ2HC1+CaCO=CaCl+32H0+C0TC22ூA᪆௃A(1)ᘤIḄ³´&ᑖᧅᦑµᑖᧅ(2)¶·¸¹ᵨজஹঝஹট»ᔠ¼ᡂḄ½¾〉ᵨ?¿ÀlÁᑴÃ[Ä%ᓽ[ᓄZᙠMnO?Æ[ᓄÇḄÈᓄeᵨÁᑖAwÉ.[Ä,ᓄ012w2H2஺242H2஺+0Tᦑµ2MnO22HO—^2H0+0T2222(3)[ÄÍ᧕?É%ÏmÐÉÑ%ᡠPᵨ½¾ঢᦈÔ[Ä%ᑣÄÖ+×aØÙÚÛᐭᦑµa(4)ÜᓄᐶÞÑ»ᙠ¶·¸ᑭᵨᮞ)àmḄa⏚ᑴᜓCO2,â*+>?¿ÀlÁᑴÃÄÖ%wãä_åæḄÄᑣd,½¾+⌱ᵨèᘤ»ᔠwজঝঠ%ᮞḄé⌕ᡂᑖ&ë⏚┛%ë⏚┛)a⏚*+,ᡂ`ᓄ┛ஹÉ.Æ[ᓄë%ᓄ012w2HC1+CaCO=CaCl+H0+C0Tᦑµজঝঠ2HC1+CaCO=CaCl+H0+3222322C0T2(5)AஹÆ[ᓄë)É*+,ᡂë⏚%ë⏚/Vîï⁐Ḅðñ#ò⁐%ᦑA┯ôBஹ`ᓄZ?Éöᡂa⏚%a⏚ÍVî÷øñ#⁐%!ù·%ᦑB┯ôCஹÆ[ᓄëஹë⏚)ú⏚ûÍ*+%¼`ᓄZ?ÉöᡂḄa⏚V)ú⏚û*+,ᡂ`ᓄûL⁐MN.ú⏚%Pù·%ᦑC஺ᦑ⌱Co(1)ýþᘤḄ³´(2)᪷zÄÖḄᑴᜓ½¾ᑴÃᳮ(3)᪷z[ÄḄÏmÐÉÑᩭᑖ᪆(4)᪷ᑴᓄḄᳮஹᑴᜓḄᩭᑖ᪆(5)᪷ᓄḄᩭᑖ᪆஺ᔠᳮ#$%&'(ᙢ*+%ஹᑖ᪆%&,-./%01Ḅ23&45⌕(7#$%ஹ*+%ஹᑖ᪆%&8(9ᓄ(:;ᝈ=Ạ஺15.ூBᫀ௃EFGḄᩈᩩJKᓄLMN(ᡈP⏚LR)STḄUVWXYᮞ[\]^_`S0+2NaOH=Na2sO3+H022m16⚓&ᐳ18⚓

16ூp᪆௃pq(1)KO2[\]^Xᡂ&tuEFGḄᩈᩩJK&ᦑwqEFGḄᩈᩩJK(2)KC)2[\]^yXᡂᓄz&ᓄz[ᓄL(ᡈP⏚LR)]^Xᡂ{⋎⁐ḄᓄL~&ᦑwqᓄL(ᡈP⏚LR)(3)PᙠKXSTḄUV⁐Fᯚ&ᦑwqSTḄUV(4)ᵫ&KᱥK7&ᦑwqW(5)ᵨ᥎Aᳫᴻ᜜&¡&¢SXYᮞ[\]^_`&ᦑwqXYᮞ[\]^_`(6)PKᱥᓄP,¤¥ᱥ&ᓄ¦MNt[ᓄP]^&Xᡂ§P⏚¦¨\&]^Ḅᓄ(©ª8qS0+2NaOH=NaSO+H0,ᓄP¬ᔾᦈ■°2232¤¥&ᦑwqS0+2NaOH=NaSO+H0..2232(1)᪷Ḅ±*+ᑖ᪆(2)᪷{⋎⁐~,ᓄL*+ᑖ᪆q(3)᪷PᙠK*+ᑖ᪆(4)᪷²³ᓄ(]^´᳛Ḅ4¶]^ᱥ·¸*+ᑖ᪆(5)᪷XYᮞ[\]^_`*+ᑖ᪆(6)᪷PKᱥ,¤¥ᱥᓄP&¹t[ᓄP]^*+ᑖ᪆஺º⚪ὃ½Ḅᑴஹឋ¿ÀKᱥḄᜐᳮ&ÂÃÄÅᦟᩞ:;,p⚪ḄᐵÉ஺16.ூBᫀ௃ADH0112g62ூp᪆௃pq(1)ᔠÌᵫÌͨÌÍஹÌÍ[ÎÌÍÏᡂḄḄᱥ¿&ᡠÑÍLᔠÌḄ,Fe(0H)3ஹÔLÕ&ᦑ⌱qAD(2)Lᑴ×Ḅ┤⇨Ú©Û8Jᩖ&mÝÞ]^82Fe+C)2+2X=2Fe(OH)2,Xᡂᱥᨵ2áLâஹ4áâஹ4áâ&]^ᱥᨵ2áLâஹ2áâ&ᡠÑᑣXḄᓄ(ª8ä0q(3)200gFe2()380%ḄçLÕ&Lᐗ¶Ḅ¿8200gX80%XéX100%=112g1OU(4)জᵫ⊤:&íîὑ50gðñ⏚òóô11.6g—8.8g=2.8g,ᡠÑa=8.8g—2.8g=6gᡠÑaḄᦪ86ঝ#ᡠᵨðñ⏚ḄM¿¿ᑖᦪ,xFe+2HC1=FeCl+H2T2

1756732.8g50gxx56_2.8g7350gxxx=7.3%ᦑBᫀ8:(1)AD(2)HO2(3)112g(4)জ6;ঝᡠᵨðñ⏚ḄM¿¿ᑖᦪ,7.3%஺(1)᪷ᔠÌᵫÌͨÌÍஹÌÍ[ÎÌÍÏᡂḄḄᱥ¿*+ᑖ᪆(2)᪷ᓄ(]^2ü&ᐗ¶ýþஹâáᦪÿ
ᑖ᪆(3)᪷ᐗ=ᱥxᐗᑖᦪ
ᑖ᪆(4)জ᪷ᦪ⏚Ḅᐵ!ᑨ#᪵%&'()ὑ⏚+Ḅ᪷ᒕ-./Ḅ01ᔠ3Ḅঝᑭᵨ⏚+Ḅ7+8Ḅᓽ:0;⏚+8+Ḅᑖᦪ஺=⚪?⌕ὃBCᓄEFGHḄIJ!KLMᜧ!OPQ⚪ḄRឋ7UVឋ஺18⚓!ᐳ18⚓