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How many moles of ${H}_{2}O(l)$ are required to balance the following redox reaction under basic conditions?

$$Cr{(OH)}_{3}(s)+Cl{{O}_{3}}^{-}(aq)\rightarrow Cr{{O}_{4}}^{2-}(aq)+{Cl}^{-}(aq)$$

A

$1\text{ moles }{H}_{2}O(l)$

B

$2\text{ moles }{H}_{2}O(l)$

C

$4\text{ moles }{H}_{2}O(l)$

D

$5\text{ moles }{H}_{2}O(l)$

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