div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imageimg data-url=2011-7-10-14h-cr2072-3ni-3ni2-2cr3-7h20-d-ni2-b-h20-c-cr2072-htmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: · 2011 7 10 · 14H+ + Cr2072- + 3Ni 3Ni2+ + 2Cr3+ + 7H20 D Ni2+ B H20 C Cr2072- 4 What is the oxidation number of chromium in Cr20 7 ion A +12 c 5 What is the oxidation loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader035vdocumentinreader035viewer20220710005fbc3f1e4f2b9866901c5272html5thumbnails1jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=2Page 2button div class=ts-imageimg data-url=2011-7-10-14h-cr2072-3ni-3ni2-2cr3-7h20-d-ni2-b-h20-c-cr2072-htmlpage=2 data-page=2 class=ts-thumb lazyload alt=Page 2: · 2011 7 10 · 14H+ + Cr2072- + 3Ni 3Ni2+ + 2Cr3+ + 7H20 D Ni2+ B H20 C Cr2072- 4 What is the oxidation number of chromium in Cr20 7 ion A +12 c 5 What is the oxidation loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader035vdocumentinreader035viewer20220710005fbc3f1e4f2b9866901c5272html5thumbnails2jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=3Page 3button div class=ts-imageimg data-url=2011-7-10-14h-cr2072-3ni-3ni2-2cr3-7h20-d-ni2-b-h20-c-cr2072-htmlpage=3 data-page=3 class=ts-thumb lazyload alt=Page 3: · 2011 7 10 · 14H+ + Cr2072- + 3Ni 3Ni2+ + 2Cr3+ + 7H20 D Ni2+ B H20 C Cr2072- 4 What is the oxidation number of chromium in Cr20 7 ion A +12 c 5 What is the oxidation loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader035vdocumentinreader035viewer20220710005fbc3f1e4f2b9866901c5272html5thumbnails3jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=4Page 4button div 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