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      <title>Saggio alla fiamma by Giuliana</title>
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      <description>Il segreto dei fuochi d&#39;artificio</description>
      <language>en-us</language>
      <pubDate>2015-11-17 16:37:04 UTC</pubDate>
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         <title>Sostanze</title>
         <author>giulianan</author>
         <link>https://padlet.com/giulianan/saggioallafiamma/wish/81864350</link>
         <description><![CDATA[<p>HCl diluito al 30% (acido cloridrico)</p><p>Sr(NO3)2 (nitrato di stronzio)</p><p>CuCl2 (cloruro di rame)</p><p>BaCl2 (cloruro di bario)</p><p>LiCl (cloruro di litio) in soluzione</p><p>KCl (cloruro di potassio)</p><p>NaCl (cloruro di sodio)</p>]]></description>
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         <pubDate>2015-11-17 16:58:50 UTC</pubDate>
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         <title>Attrezzatura</title>
         <author>giulianan</author>
         <link>https://padlet.com/giulianan/saggioallafiamma/wish/81866209</link>
         <description><![CDATA[<p>filo metallico</p><p>fornello</p><p>becker</p>]]></description>
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         <pubDate>2015-11-17 17:03:24 UTC</pubDate>
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         <title>Procedimento</title>
         <author>giulianan</author>
         <link>https://padlet.com/giulianan/saggioallafiamma/wish/81867207</link>
         <description><![CDATA[<p>- abbiamo intinto il filo in acido cloridrico, poi l'abbiamo passato sulla fiamma per pulirlo</p><p>- dopo aver pulito il filo, abbiamo preso con esso qualche granello del sale da analizzare portandolo sulla fiamma</p><p>- abbiamo ripetuto l'operazione per ogni sostanza da analizzare, pulendo il filo in acido cloridrico dopo ogni saggio</p>]]></description>
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         <pubDate>2015-11-17 17:06:00 UTC</pubDate>
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         <title>Risultati</title>
         <author>giulianan</author>
         <link>https://padlet.com/giulianan/saggioallafiamma/wish/81869801</link>
         <description><![CDATA[<p>Avvicinando i sali alla fiamma, essa si colorava di colori diversi a seconda del metallo contenuto nel sale.</p>]]></description>
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         <pubDate>2015-11-17 17:12:52 UTC</pubDate>
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         <title>Sr(NO3)2</title>
         <author>giulianan</author>
         <link>https://padlet.com/giulianan/saggioallafiamma/wish/81870782</link>
         <description><![CDATA[]]></description>
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         <pubDate>2015-11-17 17:15:30 UTC</pubDate>
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         <title>CuCl2</title>
         <author>giulianan</author>
         <link>https://padlet.com/giulianan/saggioallafiamma/wish/81871209</link>
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         <pubDate>2015-11-17 17:16:38 UTC</pubDate>
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         <title>BaCl2</title>
         <author>giulianan</author>
         <link>https://padlet.com/giulianan/saggioallafiamma/wish/81872082</link>
         <description><![CDATA[]]></description>
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         <pubDate>2015-11-17 17:18:50 UTC</pubDate>
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         <title>LiC</title>
         <author>giulianan</author>
         <link>https://padlet.com/giulianan/saggioallafiamma/wish/81873033</link>
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         <pubDate>2015-11-17 17:21:45 UTC</pubDate>
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         <title>KCl</title>
         <author>giulianan</author>
         <link>https://padlet.com/giulianan/saggioallafiamma/wish/81873565</link>
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         <pubDate>2015-11-17 17:23:29 UTC</pubDate>
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         <title>NaCl</title>
         <author>giulianan</author>
         <link>https://padlet.com/giulianan/saggioallafiamma/wish/81874054</link>
         <description><![CDATA[]]></description>
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         <pubDate>2015-11-17 17:24:57 UTC</pubDate>
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         <title>Conclusioni</title>
         <author>giulianan</author>
         <link>https://padlet.com/giulianan/saggioallafiamma/wish/81874327</link>
         <description><![CDATA[<p>Il fenomeno può essere spiegato dal modello atomico di Bohr: quando si fornisce energia a un atomo, i suoi elettroni vanno a livelli energetici superiori e tornano poi al loro stato fondamentale, restituendo l'energia acquistata sotto forma di energia elettromagnetica. Poiché atomi diversi possiedono una diversa struttura elettronica, essi assorbono e poi rilasciano quantità di energie diverse. A seconda del colore della luce emessa si vede quanta energia hanno precedentemente assorbito.</p>]]></description>
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         <pubDate>2015-11-17 17:25:46 UTC</pubDate>
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