<p>I have a couple reactions I am confused about</p>
<p>Acid anhyrdride + h2o = an acid</p>
<p>So which of these would they accept
- N2O5 + h2o → H+ + No3-
or
N2O5 + h2o → HNo3</p>
<li> P2o5 + h2o → h3po4
or
p2o5 + h2o —> h + h2po4
or
p2o5 + h2o —> h + hpo4
or
p2o5 + h2o → h + po4</li>
</ol>
<p>Also for basic anhydrides
3. K2o + h2o → K+ + Oh-
or
K2o + h2o → Koh</p>
<li> Cao + H2o → Ca(oh)2
or
Cao + H2o → Ca + oh</li>
</ol>
<p>i dont know, which ones they would accept. Please help me.</p>
<ol>
<li><p>N2O5 + h2o --> H+ + No3-
This one as nitric acid is strong and disassociates completely</p></li>
<li><p>P2o5 + h2o --> h3po4
I think this is phospuric acid. Also it doesnt dissassociate completely as it is a strong acid. </p></li>
<li><p>K2o + h2o --> K+ + Oh-
Alkali metals are soluble and the disassociate. </p></li>
<li><p>Cao + H2o --> Ca(oh)2
Because Ca and OH form precipitate. </p></li>
</ol>
<p>I think you should go over the solubility rules. They help quite a bit</p>
<p>Oh I had no clue that they had to do with sol. rules. I know the rules well though. Thanks!</p>