Anonymous
Anonymous asked in 科學其他:科學 · 1 decade ago

I.S. Acid Rain

Questions

1. The limestone statue is corroded by acid rain.

(a) What is acid rain?

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(b) What chemical does limestone contain?

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(c) How does acid rain corrode limestone?

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1 Answer

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  • 1 decade ago
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    不知道你想要中文解還是英文@@

    題目是

    石灰石雕像被酸雨侵蝕

    a.什麼是酸雨

    酸雨就是pH值小於5.6的雨水稱為酸雨

    工業廢氣例如二氧化硫,二氧化氮,二氧化碳

    會和雨水反應形成亞硫酸,硝酸,碳酸

    便可能使雨水pH小於5.6

    b.這題應該是問石灰石有什麼化學成分吧

    主要是碳酸鈣

    c.酸雨怎麼侵蝕石灰石

    石灰石主要成分是碳酸鈣

    酸雨含有氫離子

    CaCO3+2H+----->Ca2+ +CO2+H2O

    碳酸鈣和氫離子(酸)反應使鈣變成可溶的鈣離子和二氧化碳以及水

    可溶的鈣離子會被雨水帶走,所以腐蝕

    就這樣

    Source(s): 自己
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