Question
Complete the following reaction.
$HCOOH + H _2 SO _4 \longrightarrow$
$HCOOH + H _2 SO _4 \longrightarrow$
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Slag
sodiumtetrafluoridodihydroxidochromate (III)
Complete the following.
$Na _2 Cr _2 O _7+ KCl \longrightarrow$ ?