https://keystagewiki.com/index.php?action=history&feed=atom&title=Identifying_Pure_Substances 2026-04-11T10:43:16Z Revision history for this page on the wiki MediaWiki 1.32.1 https://keystagewiki.com/index.php?title=Identifying_Pure_Substances&diff=12908&oldid=prev 2019-04-03T19:32:40Z

<p></p> <table class="diff diff-contentalign-left" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #222; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #222; text-align: center;">Revision as of 19:32, 3 April 2019</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1" >Line 1:</td> <td colspan="2" class="diff-lineno">Line 1:</td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==Key Stage 3==</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==Key Stage 3==</div></td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>===Meaning===</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>===Meaning===</div></td></tr> <tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>'''Identifying Pure Substances''' is a set of [[method]]s that can be used to determine if a [[substance]] is a [[mixture]] of other [[<del class="diffchange diffchange-inline">substances</del>]] or whether it is pure.</div></td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>'''Identifying Pure Substances''' is a set of [[method]]s that can be used to determine if a [[substance]] is a [[mixture]] of other [[<ins class="diffchange diffchange-inline">substance</ins>]]<ins class="diffchange diffchange-inline">s </ins>or whether it is pure.</div></td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>===About Identifying Pure Substances===</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>===About Identifying Pure Substances===</div></td></tr> </table>

NRJC https://keystagewiki.com/index.php?title=Identifying_Pure_Substances&diff=4213&oldid=prev 2018-09-27T16:57:42Z

<p>Created page with &quot;==Key Stage 3== ===Meaning=== &#039;&#039;&#039;Identifying Pure Substances&#039;&#039;&#039; is a set of <a href="/index.php/Method" title="Method">methods</a> that can be used to determine if a <a href="/index.php/Substance" title="Substance">substance</a> is a <a href="/index.php/Mixture" title="Mixture">mixture</a> of other substances...&quot;</p> <p><b>New page</b></p><div>==Key Stage 3==<br /> ===Meaning===<br /> '''Identifying Pure Substances''' is a set of [[method]]s that can be used to determine if a [[substance]] is a [[mixture]] of other [[substances]] or whether it is pure.<br /> <br /> ===About Identifying Pure Substances===<br /> : To identify if a [[substance]] is pure the experimenter should try several [[Separating Mixtures|separation]] techniques.<br /> To find if a [[liquid]] is pure:<br /> : 1. Filter the substance. If a residue is left in the filter paper, then the substance is not pure.<br /> : 2. Distill the substance. If a material is left behind during distillation then it is not pure.<br /> To find if a [[solid]] is pure:<br /> : 1. Dissolve the solid in a solvent.<br /> : 2. Place a drop of the solution on chromatograph paper and use the same solvent to complete a chromatography experiment. If two or more separate patches appear, then it is not pure.</div>

NRJC