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      <title>Soal Kimia by Helmida Fitri</title>
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      <language>en-us</language>
      <pubDate>2025-10-15 22:11:54 UTC</pubDate>
      <lastBuildDate>2025-10-15 22:19:37 UTC</lastBuildDate>
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         <author>helmidafitri77</author>
         <link>https://padlet.com/helmidafitri77/tqt3d54tvmnd6h9m/wish/3634509265</link>
         <description><![CDATA[<p>Jika&nbsp; 500 mL air dipanaskan dengan menggunakan lampu spirtus. Jika jumlah etanol yang terbakar 2 g, ternyata suhu air naik sebesar 5,14 <sup>o</sup>C. Efisiensi kalor pada proses pemanasan tersebut adalah ....</p><p>(ΔHf C<sub>2</sub>H<sub>5</sub>OH = –227 kJmol<sup>–1</sup>; CO<sub>2</sub>(g) = –393; 5 kJmol<sup>–1</sup>; H<sub>2</sub>O(g) = –242 kJmol<sup>–1</sup>; kalor jenis air = 4,18 Jg<sup>–1</sup>K<sup>–1</sup>; Ar H = 1; C = 12; O = 16)</p><p>A.&nbsp;&nbsp; 1%</p><p>B.&nbsp;&nbsp; 2%</p><p>C.&nbsp;&nbsp; 10%</p><p>D.&nbsp;&nbsp; 20%</p><p>E.&nbsp;&nbsp;&nbsp; 40%</p>]]></description>
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         <pubDate>2025-10-15 22:18:08 UTC</pubDate>
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         <title>1. Apa penyebab efisiensi percobaan Ananda kurang dari 100 % </title>
         <author>helmidafitri77</author>
         <link>https://padlet.com/helmidafitri77/tqt3d54tvmnd6h9m/wish/3634509664</link>
         <description><![CDATA[<p><br/></p><p><br/></p><p><br/></p><p><br/></p><p><br/></p><p><br/></p><p><br/></p><p><br/></p><p><br/></p><p><br/></p><p><br/></p><p><br/></p><p><br/></p><p><br/></p><p><br/></p><p><br/></p><p><br/></p><p><br/></p><p><br/></p><p><br/></p><p><br/></p><p><br/></p>]]></description>
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         <pubDate>2025-10-15 22:18:43 UTC</pubDate>
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         <title>2. Sebagai seorang murid SMA, apa yang Ananda lakukan dalam kehidupan sehari-hari supaya dapat menghemat energi</title>
         <author>helmidafitri77</author>
         <link>https://padlet.com/helmidafitri77/tqt3d54tvmnd6h9m/wish/3634509941</link>
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         <pubDate>2025-10-15 22:19:06 UTC</pubDate>
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         <title>3. Sumber bahan bakar fosil yang digunakan saat ini sangat terbatas ketersediaannya di alam. Kita harus mecari sumber energi terbarukan. Sebutkan sumber enegi yang terbarukan</title>
         <author>helmidafitri77</author>
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         <pubDate>2025-10-15 22:19:36 UTC</pubDate>
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