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8h+7=-113 -113+7==106/8=h=-13.25 h=-13.25
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To simplify the expression (3h - 2(1 + 4h)), first distribute the (-2) across the terms in the parentheses: [ 3h - 2 - 8h. ] Next, combine the like terms (3h) and (-8h): [ (3h - 8h) - 2 = -5h - 2. ] Thus, the expression in standard form is (-5h - 2).
12
8H+ + MnO4- + 5Fe2+--> 5Fe3+ + Mn2+ + 4H20