2CrO₄²⁻(aq) + 2H⁺(aq) ⇄ Cr₂O₇²⁻(aq) + H₂O(l)

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There is no reason to think the results are biased or not conducted properly but you should not assume the results are correct just because they were done in a laboratory so the answer would be c. it is likely to be reliable because the results support the conclusion presented.

Aseasonal prevailing wind in the region of south and southeast asia, blowing from the southwest between may and september and bringing rain (the wet monsoon ), or from the northeast between october and april (the dry monsoon ).

Answer the same molecular formula;