Question

Complete the following chemical equations:

$bold i bold right parenthesis bold space bold Cr subscript 2 bold O subscript 7 superscript 2 minus end superscript space plus space bold H to the power of plus space plus space bold I to the power of minus space rightwards arrow ii right parenthesis space bold MnO subscript 4 superscript minus space plus space bold NO subscript 2 superscript minus space plus space bold H to the power of plus rightwards arrow$

Solution

bold i bold right parenthesis bold space bold Cr subscript 2 bold O subscript 7 superscript 2 minus end superscript space plus space 14 bold H to the power of plus space plus space 6 bold I to the power of minus space rightwards arrow space 2 bold Cr to the power of 3 plus end exponent space plus space 3 bold I subscript 2 space plus space 7 bold H subscript 2 bold O bold ii bold right parenthesis bold space bold 2 bold MnO subscript bold 4 superscript bold minus bold italic space bold plus bold italic space bold 5 bold NO subscript bold 2 superscript bold minus bold italic space bold plus bold italic space bold 6 bold italic space bold H to the power of bold plus bold rightwards arrow bold italic space bold 2 bold Mn to the power of bold 2 bold plus end exponent bold italic space bold plus bold italic space bold 4 bold NO subscript bold 3 superscript bold minus bold italic space bold plus bold italic space bold 3 bold H subscript bold 2 bold O

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