<svg xmlns="http://www.w3.org/2000/svg" xmlns:wrs="http://www.wiris.com/xml/mathml-extension" height="24" width="52" wrs:baseline="15"><!--MathML: <math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi>H</mi><mn>2</mn></msub><mi>S</mi><msub><mi>O</mi><mn>3</mn></msub></math>--><defs><style type="text/css"/></defs><text font-family="Arial" font-size="16" font-style="italic" text-anchor="middle" x="6.5" y="15">H</text><text font-family="Arial" font-size="12" text-anchor="middle" x="16.5" y="20">2</text><text font-family="Arial" font-size="16" font-style="italic" text-anchor="middle" x="25.5" y="15">S</text><text font-family="Arial" font-size="16" font-style="italic" text-anchor="middle" x="37.5" y="15">O</text><text font-family="Arial" font-size="12" text-anchor="middle" x="47.5" y="20">3</text></svg>