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ǰλãҳ > 2020-2021高考化学备考之氧化还原反应压轴突破训练∶培?易错 难题篇及详细答案 - 百度文库

2020-2021高考化学备考之氧化还原反应压轴突破训练∶培?易错 难题篇及详细答案 - 百度文库

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֪Mg2SiO4(s+4HCl(aq)2MgCl2(aq+SiO2(s+ 2H2O(l H =4904 kJmol-1

ijʯMg9FeSi5O20ʽɱʾΪ_____________ ͼڲһҵ______________

۾üʽ̼þƷкNaClFe2O3ΪᴿɲȡĴʩΪܽҺгԲƷϴӴжϲƷϴIJ__________ 𰸡b 4KClO39MgOFeO5SiO2

KCl3KClO4 -1527.6kJ /mol b CH3OH+8OH-6e-=CO32-+6H2O

ȡ

һεϴҺữҺ޳ϴ

1ԼԭԷ 2ԭغ͵غȻƽ 3ݸ˹ɼH

4ȼϵصĸͨȼϵһڼԻдĵ缫Ӧʽ

5дʽȻý󲻻˳д̶̼üҵȡNaOHķǵⷨжϲƷϴԭǼϿܸŵӡ ⡿

1aǼ壬׸b⻯壬лԭԣŨ׸ȷcŨ׸d̼Ũ׸ѡb

2еΪ+5ۣһΣΪȻأԪػϼ۽ͣԻԪػϼߣɸأԷʽΪ4KClO315276kJ /mol

4 ȼϵȼbΪ ״ڼʧȥ̼ӣ缫ӦΪCH3OH+8OH-6e-=CO32-+6H2O

5ٸݹθдʽȻý󲻻FeO5SiO2 裬ʽʾΪ 9MgO

ڴӹ̼ķӦԿҪҺͼڲõһҵ

KCl3KClO4

3ݸ˹ɷʽ-١2+ڡ2ɣӦ=-566+9082-57162= -

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жϲƷǷϴҪһεϴҺǷӣԲΪȡһεϴҺữҺ޳ϴ

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֪Mg2SiO4(s+4HCl(aq)2MgCl2(aq+SiO2(s+ 2H2O(l H =4904 kJmol-1 ijʯMg9FeSi5O20ʽɱʾΪ_____________ ͼڲһҵ______________ ۾üʽ̼þƷкNaClFe2O3ΪᴿɲȡĴʩΪܽҺгԲƷϴӴжϲƷϴIJ__________ 𰸡b 4KClO39MgOFeO5SiO2 KCl3KClO4 -1527.6kJ /mol b CH3OH+8OH-6e-=CO32-+6H2O ȡ<

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