Use of xsi:schemaLocation

[Thropp, Shawn]

I am trying to determine if the following is legal.  I have been searching the W3C recommendations and can't determine if it is:

 

<element xmlns="http://somenamespace.org"

               xmlns:xsi = "http://www.w3.org/2001/XMLSchema-instance"

               xsi:schemaLocation="http://somenamespace.org schema.xsd">

   <element1></element1>
   <element2></element2>
   <newElement xmlns="http://someothernamespace.com" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://someothernamespace.com otherschema.xsd">
      <newElement1></newElement1>
      <newElement2></newElement2>
   </newElement>
</element>

Can XML instance use the xsi declaration and the schemaLocation declaration as I did in the <newElement> element?

 

Thanks

Schawn