https://teaching.ncl.ac.uk/bms/wiki//api.php?action=feedcontributions&feedformat=atom&user=180102099 2026-04-15T01:14:21Z User contributions MediaWiki 1.44.0 https://teaching.ncl.ac.uk/bms/wiki//index.php?title=Catalyst&diff=23345 2018-12-09T13:43:03Z

<p>180102099: Created page with &quot;&amp;nbsp;A catalyst is a substance that can be in a solid, liquid or gaseous form. The aim of a catalyst is to increase the rate of a reaction by lowering the activation enthalp of ...&quot;</p> <hr /> <div>&amp;nbsp;A catalyst is a substance that can be in a solid, liquid or gaseous form. The aim of a catalyst is to increase the rate of a reaction by lowering the activation enthalp of a reaction.&amp;nbsp;Meaning a higher majority of molecules can react, so more product is formed from reactants. A catalyst itself is unchanged at the end of a reaction, therefore, can be re used.&amp;nbsp;</div>

180102099 https://teaching.ncl.ac.uk/bms/wiki//index.php?title=Positive_ion&diff=23343 2018-12-09T13:35:12Z

<p>180102099: Created page with &quot;A positive ion is a molecule that has a non zero charge. This is due to the molecule losing one or more electon(s). This results in a positive charge as there are now more proton...&quot;</p> <hr /> <div>A positive ion is a molecule that has a non zero charge. This is due to the molecule losing one or more electon(s). This results in a positive charge as there are now more protons (which are postive) than electrons (negative) causing an overall postive charge. An example of a positive ion is Na+. This has 11 protons and 10 electrons.&amp;nbsp;</div>

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