Chất nào sau đây là hiđroxit lưỡng tính? A. <span class="MathJax_Preview" style="color: inherit;"><span class="MJXp-math" id="MJXp-Span-1"><span class="MJXp-mstyle" id="MJXp-Span-2"><span class="MJXp-mi MJXp-italic" id="MJXp-Span-3">F</span><span class="MJXp-mi MJXp-italic" id="MJXp-Span-4">e</span><span class="MJXp-mo" id="MJXp-Span-5" style="margin-left: 0em; margin-right: 0em;">(</span><span class="MJXp-mi MJXp-italic" id="MJXp-Span-6">O</span><span class="MJXp-mi MJXp-italic" id="MJXp-Span-7">H</span><span class="MJXp-msubsup" id="MJXp-Span-8"><span class="MJXp-mo" id="MJXp-Span-9" style="margin-left: 0em; margin-right: 0.05em;">)</span><span class="MJXp-mrow MJXp-script" id="MJXp-Span-10" style="vertical-align: -0.4em;"><span class="MJXp-mn" id="MJXp-Span-11">3</span></span></span></span></span></span><script type="math/tex" id="MathJax-Element-1">\Large Fe(OH)