<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31298132</termId><termName>reactivity</termName><termType>PT</termType><termNote><![CDATA[ The quality or condition of tending to react, especially the tendency of a substance to undergo chemical reactions. ]]></termNote><termCreatedDate>2026-03-30 20:19:54</termCreatedDate><relation><relationType>UF</relationType><termId>31298133</termId><termName>reactive</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31296909</termId><termName>attributes and properties by specific type</termName><termType>PT</termType></relation></term>  </Zthes>