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	<id>https://keystagewiki.com/index.php?action=history&amp;feed=atom&amp;title=Cobalt_%28II%29_Oxide</id>
	<title>Cobalt (II) Oxide - Revision history</title>
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	<updated>2026-04-06T09:42:49Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://keystagewiki.com/index.php?title=Cobalt_(II)_Oxide&amp;diff=12179&amp;oldid=prev</id>
		<title>NRJC: Created page with &quot;==Key Stage 4== ===Meaning=== Cobalt (II) Oxide is a solid (STP) chemical compound with the formula CoO.  ===About Cobalt (II) Oxide=== :...&quot;</title>
		<link rel="alternate" type="text/html" href="https://keystagewiki.com/index.php?title=Cobalt_(II)_Oxide&amp;diff=12179&amp;oldid=prev"/>
		<updated>2019-04-02T15:45:06Z</updated>

		<summary type="html">&lt;p&gt;Created page with &amp;quot;==Key Stage 4== ===Meaning=== &lt;a href=&quot;/index.php/Cobalt_(II)_Oxide&quot; title=&quot;Cobalt (II) Oxide&quot;&gt;Cobalt (II) Oxide&lt;/a&gt; is a &lt;a href=&quot;/index.php/Solid&quot; title=&quot;Solid&quot;&gt;solid&lt;/a&gt; (&lt;a href=&quot;/index.php/STP&quot; class=&quot;mw-redirect&quot; title=&quot;STP&quot;&gt;STP&lt;/a&gt;) chemical &lt;a href=&quot;/index.php/Compound&quot; title=&quot;Compound&quot;&gt;compound&lt;/a&gt; with the &lt;a href=&quot;/index.php/Chemical_Formula&quot; title=&quot;Chemical Formula&quot;&gt;formula&lt;/a&gt; CoO.  ===About Cobalt (II) Oxide=== :...&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;==Key Stage 4==&lt;br /&gt;
===Meaning===&lt;br /&gt;
[[Cobalt (II) Oxide]] is a [[solid]] ([[STP]]) chemical [[compound]] with the [[Chemical Formula|formula]] CoO.&lt;br /&gt;
&lt;br /&gt;
===About Cobalt (II) Oxide===&lt;br /&gt;
: [[Cobalt (II) Oxide]] is a [[base]].&lt;br /&gt;
: [[Cobalt (II) Oxide]] is held together by [[Ionic Bond|ionic bonds]].&lt;br /&gt;
: [[Cobalt (II) Oxide]] has a [[Giant Ionic Structure|giant ionic structure]].&lt;br /&gt;
: [[Cobalt (II) Oxide]] [[Chemical Reaction|reacts]] with [[acid]]s to produce a [[Cobalt (II)]] [[salt]] and [[water]].&lt;br /&gt;
:: [[Hydrochloric Acid]] + [[Cobalt (II) Oxide]] → [[Cobalt (II) Chloride]] + [[Water]]&lt;br /&gt;
:: 2HCl + CoO → 2CoCl&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt; + H&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt;O&lt;br /&gt;
:: [[Sulphuric Acid]] + [[Cobalt (II) Oxide]] → [[Cobalt (II) Sulphate]] + [[Water]]&lt;br /&gt;
:: H&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt;SO&amp;lt;sub&amp;gt;4&amp;lt;/sub&amp;gt; + CoO → CoSO&amp;lt;sub&amp;gt;4&amp;lt;/sub&amp;gt; + H&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt;O&lt;br /&gt;
:: [[Nitric Acid]] + [[Cobalt (II) Oxide]] → [[Cobalt (II) Nitrate]] + [[Water]]&lt;br /&gt;
:: 2HNO&amp;lt;sub&amp;gt;3&amp;lt;/sub&amp;gt; + CoO → Co(NO&amp;lt;sub&amp;gt;3&amp;lt;/sub&amp;gt;)&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt; + H&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt;O&lt;/div&gt;</summary>
		<author><name>NRJC</name></author>
		
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