Cr2O7 元素Oxidation Number (Avg)Count电负性 Cr+021.7 O+073.4 指令 Enter the formula of a chemical compound to find the oxidation number of each element. A net ionic charge can be specified at the end of the compound between { and }. For example: ZnCl4{2-} or NH2NH3{+}. ...
2K2Cr2O2+ H2SO4= O2+4KSO +2Cr2(SO4)3+ H2O ReactantsProducts K44✔️ Cr44✔️ O831❌ H22✔️ S110❌ Sis not balanced. Add9molecules ofH2SO4to the reactant (left-hand) side to balance Sulfur: 2K2Cr2O2+10H2SO4= O2+4KSO +2Cr2(SO4)...