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      <title> by Mihaela Jura</title>
      <link>https://padlet.com/jura_mihaela/ys0p3n625cwz</link>
      <description></description>
      <language>en-us</language>
      <pubDate>2014-05-07 09:22:10 UTC</pubDate>
      <lastBuildDate>2017-05-17 06:36:27 UTC</lastBuildDate>
      <webMaster>hello@padlet.com</webMaster>
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      <item>
         <title>&amp;nbsp; &amp;nbsp;Carbonati si hidrocarbonati&amp;nbsp;</title>
         <author>jura_mihaela</author>
         <link>https://padlet.com/jura_mihaela/ys0p3n625cwz/wish/27460480</link>
         <description><![CDATA[<p><b>Carbonați</b>&nbsp;sunt săruri disociate a&nbsp;<a href="http://ro.wikipedia.org/wiki/Acid_carbonic">acidului carbonic</a> H<sub>2</sub>CO<sub>3</sub>.</p><p> Aici aparține legătura realizată prin anionul de carbonat CO<sub>3</sub><sup>2-</sup>.</p><p><b>Hidrocarbonatii</b>- substanta organica constituita din carbon, hidrogen si oxigen.</p><p>          Structura chimica</p>]]></description>
         <enclosure url="http://upload.wikimedia.org/wikipedia/commons/thumb/3/32/Carbonate.svg/150px-Carbonate.svg.png" />
         <pubDate>2014-05-07 09:25:08 UTC</pubDate>
         <guid>https://padlet.com/jura_mihaela/ys0p3n625cwz/wish/27460480</guid>
      </item>
      <item>
         <title>                  Proprietati</title>
         <author>jura_mihaela</author>
         <link>https://padlet.com/jura_mihaela/ys0p3n625cwz/wish/27460764</link>
         <description><![CDATA[<p>Carbonații sunt săruri ionice de aceea la temperatura camerei se prezintă sub formă solidă cristalizată. </p><p>Anionul de carbonat nu are culoare, din această cauză culoarea este determinată de cationi. Carbonații nu au miros (sunt inodori).</p>]]></description>
         <enclosure url="" />
         <pubDate>2014-05-07 09:29:27 UTC</pubDate>
         <guid>https://padlet.com/jura_mihaela/ys0p3n625cwz/wish/27460764</guid>
      </item>
      <item>
         <title>&amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; Raspindirea si utilizarea</title>
         <author>jura_mihaela</author>
         <link>https://padlet.com/jura_mihaela/ys0p3n625cwz/wish/27460887</link>
         <description><![CDATA[<p><p>Carbonatul de calciu este prezent în&nbsp;<a href="http://ro.wikipedia.org/wiki/Calcar">calcare</a>, ciment, beton, sau îngrășăminte chimice (amendamente)</p><p>Se află de asemenea&nbsp;<a href="http://ro.wikipedia.org/wiki/Carbonat_de_calciu">carbonat de calciu</a>&nbsp;ca:</p><ul><li>In&nbsp;<a href="http://ro.wikipedia.org/wiki/Marmur%C4%83">marmură</a>&nbsp;utilizat în construcții</li><li>In&nbsp;<a href="http://ro.wikipedia.org/wiki/Cret%C4%83">cretă</a>&nbsp;folosit în școli</li><li>In&nbsp;<a href="http://ro.wikipedia.org/wiki/Medicin%C4%83">medicină</a>&nbsp;este folosit ca antiacid îi hiperaciditatea gastrică, sau tratarea rahitismului</li><li>In&nbsp;<a href="http://ro.wikipedia.org/wiki/Farmacologie">farmacologie</a>&nbsp;ca emulgator la prepararea de pulberi, alifii, drageuri</li><li>In&nbsp;<a href="http://ro.wikipedia.org/wiki/Industrie">industria</a>&nbsp;alimentară fiind notat E 170 (colorant netoxic)</li><li>In&nbsp;<a href="http://ro.wikipedia.org/wiki/Cosmetic%C4%83">cosmetică</a>&nbsp;ca pulberi sicative</li><li>In tehnică și&nbsp;<a href="http://ro.wikipedia.org/wiki/Agricultur%C4%83">agricultură</a>, îngrășăminte chimice, ca prisme pentru aparate optice</li><li>In&nbsp;<a href="http://ro.wikipedia.org/wiki/Biologie">biologie</a>, în natură este folosit de organismele marine pentru alcătuirea cochiliilor</li></ul></p>]]></description>
         <enclosure url="" />
         <pubDate>2014-05-07 09:31:08 UTC</pubDate>
         <guid>https://padlet.com/jura_mihaela/ys0p3n625cwz/wish/27460887</guid>
      </item>
      <item>
         <title>&amp;nbsp; &amp;nbsp;Metodele de preparare&amp;nbsp;</title>
         <author>jura_mihaela</author>
         <link>https://padlet.com/jura_mihaela/ys0p3n625cwz/wish/27461323</link>
         <description><![CDATA[<p>carbonat de calciu+ apa+ bioxid de carbon --&gt; hidrocarbonat de calciu</p>]]></description>
         <enclosure url="http://upload.wikimedia.org/math/d/4/1/d418a536af774d68d1e6cd74951b1b9b.png" />
         <pubDate>2014-05-07 09:38:44 UTC</pubDate>
         <guid>https://padlet.com/jura_mihaela/ys0p3n625cwz/wish/27461323</guid>
      </item>
      <item>
         <title>Soda calcinata sau anhidra</title>
         <author></author>
         <link>https://padlet.com/jura_mihaela/ys0p3n625cwz/wish/27473658</link>
         <description><![CDATA[<p>Na2CO3</p>]]></description>
         <enclosure url="http://i00.i.aliimg.com/photo/269951976/SODA_ASH_LIGHT.jpg" />
         <pubDate>2014-05-07 12:50:11 UTC</pubDate>
         <guid>https://padlet.com/jura_mihaela/ys0p3n625cwz/wish/27473658</guid>
      </item>
      <item>
         <title>Creta</title>
         <author></author>
         <link>https://padlet.com/jura_mihaela/ys0p3n625cwz/wish/27473772</link>
         <description><![CDATA[<p>CaCO3</p>]]></description>
         <enclosure url="http://i01.i.aliimg.com/photo/v0/152281997/CaCO3_powder.jpg" />
         <pubDate>2014-05-07 12:51:19 UTC</pubDate>
         <guid>https://padlet.com/jura_mihaela/ys0p3n625cwz/wish/27473772</guid>
      </item>
      <item>
         <title></title>
         <author></author>
         <link>https://padlet.com/jura_mihaela/ys0p3n625cwz/wish/27474733</link>
         <description><![CDATA[<p>Descompunerea la caldura: carbonat de calciu--&gt; oxid de calciu+ bioxid de carbon</p>]]></description>
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         <pubDate>2014-05-07 13:00:38 UTC</pubDate>
         <guid>https://padlet.com/jura_mihaela/ys0p3n625cwz/wish/27474733</guid>
      </item>
      <item>
         <title></title>
         <author></author>
         <link>https://padlet.com/jura_mihaela/ys0p3n625cwz/wish/27474869</link>
         <description><![CDATA[<p>Formarea acidului carbonic</p>]]></description>
         <enclosure url="http://upload.wikimedia.org/math/d/5/f/d5f367e5c57b7c66c9d800ac7b192960.png" />
         <pubDate>2014-05-07 13:02:02 UTC</pubDate>
         <guid>https://padlet.com/jura_mihaela/ys0p3n625cwz/wish/27474869</guid>
      </item>
      <item>
         <title>Bicarbonat de calciu</title>
         <author></author>
         <link>https://padlet.com/jura_mihaela/ys0p3n625cwz/wish/27475150</link>
         <description><![CDATA[<blockquote>Ca(HCO3)2</blockquote>]]></description>
         <enclosure url="http://900igr.net/datai/geografija/Unikumy-Urala/0013-021-Kungurskaja-peschera.jpg" />
         <pubDate>2014-05-07 13:04:52 UTC</pubDate>
         <guid>https://padlet.com/jura_mihaela/ys0p3n625cwz/wish/27475150</guid>
      </item>
      <item>
         <title>CaCO3 (solid)+H2O</title>
         <author>jura_mihaela</author>
         <link>https://padlet.com/jura_mihaela/ys0p3n625cwz/wish/27476541</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://www.youtube.com/watch?v=x1BxJ3YGb8s" />
         <pubDate>2014-05-07 13:18:05 UTC</pubDate>
         <guid>https://padlet.com/jura_mihaela/ys0p3n625cwz/wish/27476541</guid>
      </item>
      <item>
         <title>CO2+H2O</title>
         <author>jura_mihaela</author>
         <link>https://padlet.com/jura_mihaela/ys0p3n625cwz/wish/27476745</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://www.youtube.com/watch?v=2KbEV85rJhs" />
         <pubDate>2014-05-07 13:19:32 UTC</pubDate>
         <guid>https://padlet.com/jura_mihaela/ys0p3n625cwz/wish/27476745</guid>
      </item>
      <item>
         <title>Azurit</title>
         <author>jura_mihaela</author>
         <link>https://padlet.com/jura_mihaela/ys0p3n625cwz/wish/28055483</link>
         <description><![CDATA[<p>Cu<sub>3</sub>(CO<sub>3</sub>)<sub>2</sub>(OH)<sub>2</sub></p>]]></description>
         <enclosure url="http://mineralcatalog.com.ua/images/gems/thumbs/350/tn_image_29.jpg" />
         <pubDate>2014-05-15 05:22:38 UTC</pubDate>
         <guid>https://padlet.com/jura_mihaela/ys0p3n625cwz/wish/28055483</guid>
      </item>
      <item>
         <title>Aragonit</title>
         <author>jura_mihaela</author>
         <link>https://padlet.com/jura_mihaela/ys0p3n625cwz/wish/28055513</link>
         <description><![CDATA[<p>CaCO<sub>3</sub></p>]]></description>
         <enclosure url="http://mineralcatalog.com.ua/images/gems/thumbs/350/tn_image_265.jpg" />
         <pubDate>2014-05-15 05:23:39 UTC</pubDate>
         <guid>https://padlet.com/jura_mihaela/ys0p3n625cwz/wish/28055513</guid>
      </item>
      <item>
         <title>Magnezit</title>
         <author>jura_mihaela</author>
         <link>https://padlet.com/jura_mihaela/ys0p3n625cwz/wish/28055674</link>
         <description><![CDATA[<p>MgCO<sub>3</sub></p>]]></description>
         <enclosure url="http://mineralcatalog.com.ua/images/gems/thumbs/350/tn_image_1001.jpg" />
         <pubDate>2014-05-15 05:27:36 UTC</pubDate>
         <guid>https://padlet.com/jura_mihaela/ys0p3n625cwz/wish/28055674</guid>
      </item>
      <item>
         <title>Malachit</title>
         <author>jura_mihaela</author>
         <link>https://padlet.com/jura_mihaela/ys0p3n625cwz/wish/28055761</link>
         <description><![CDATA[<p>Cu<sub>2&nbsp;</sub>(CO<sub>3</sub>) (OH)<sub>2</sub></p>]]></description>
         <enclosure url="http://mineralcatalog.com.ua/images/gems/thumbs/350/tn_image_1007.jpg" />
         <pubDate>2014-05-15 05:29:49 UTC</pubDate>
         <guid>https://padlet.com/jura_mihaela/ys0p3n625cwz/wish/28055761</guid>
      </item>
      <item>
         <title>Siderit</title>
         <author>jura_mihaela</author>
         <link>https://padlet.com/jura_mihaela/ys0p3n625cwz/wish/28560151</link>
         <description><![CDATA[<p>FeCO<sub>3</sub></p>]]></description>
         <enclosure url="http://mineralcatalog.com.ua/images/gems/thumbs/350/tn_image_309_2.jpg" />
         <pubDate>2014-05-22 05:20:48 UTC</pubDate>
         <guid>https://padlet.com/jura_mihaela/ys0p3n625cwz/wish/28560151</guid>
      </item>
      <item>
         <title></title>
         <author>jura_mihaela</author>
         <link>https://padlet.com/jura_mihaela/ys0p3n625cwz/wish/28560731</link>
         <description><![CDATA[<p><span style="font-size: 13px;">O</span><span style="font-size: 13px;">btinerea carbonatului de sodiu</span></p><p><b style="font-size: 13px;">                 Na<sub>2</sub>S + CaCO<sub>3</sub>&nbsp;= Na<sub>2</sub>CO<sub>3</sub>&nbsp;+ CaS</b></p>]]></description>
         <enclosure url="" />
         <pubDate>2014-05-22 05:33:53 UTC</pubDate>
         <guid>https://padlet.com/jura_mihaela/ys0p3n625cwz/wish/28560731</guid>
      </item>
      <item>
         <title></title>
         <author>jura_mihaela</author>
         <link>https://padlet.com/jura_mihaela/ys0p3n625cwz/wish/28560826</link>
         <description><![CDATA[<p>Obtinerea carbonatului de amoniu</p><p><b>               2NH3 + CO2 + H2O &lt;=&gt; (NH4)2CO3</b></p>]]></description>
         <enclosure url="" />
         <pubDate>2014-05-22 05:37:40 UTC</pubDate>
         <guid>https://padlet.com/jura_mihaela/ys0p3n625cwz/wish/28560826</guid>
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