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Chemical Equations
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?
K
N
O
3
+
?
Cr
2
O
3
+
?
K
O
H
+
?
H
2
O
→
?
K
2
Cr
2
O
7
+
?
K
N
O
2
+
?
H
2
O
Error: Error in balancing the equation: There is an infinite amount of solutions.