div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imagea href=https:reader042vdocumentsusreader042viewer20220413015e11a270172d47445801965ahtml5page1jpg target=_blank img data-url=s3-ap-southeast-1-8-n02-vun-cu-c-can-to-c-mn02-xt-h2s04-1-to-khng-khhtmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: s3-ap-southeast-1amazonawscom€¦7 8 N02 vun Cu Cô can to có Mn02 xt H2S04 1 to không khí xanh 021 que dóm bùng cháy N02 nâu 2KC103 2KC1 + 3021 3NaN02 + H2S04 1 loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader042vdocumentsusreader042viewer20220413015e11a270172d47445801965ahtml5thumbnails1jpg width=140 height=200 adivdivdiv class=ts-pagebutton class=gotoPage data-page=2Page 2button div class=ts-imagea href=https:reader042vdocumentsusreader042viewer20220413015e11a270172d47445801965ahtml5page2jpg target=_blank img data-url=s3-ap-southeast-1-8-n02-vun-cu-c-can-to-c-mn02-xt-h2s04-1-to-khng-khhtmlpage=2 data-page=2 class=ts-thumb lazyload alt=Page 2: s3-ap-southeast-1amazonawscom€¦7 8 N02 vun Cu Cô can to có Mn02 xt H2S04 1 to không khí xanh 021 que dóm bùng cháy N02 nâu 2KC103 2KC1 + 3021 3NaN02 + H2S04 1 loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader042vdocumentsusreader042viewer20220413015e11a270172d47445801965ahtml5thumbnails2jpg width=140 height=200 adivdivdiv class=ts-pagebutton class=gotoPage data-page=3Page 3button div class=ts-imagea href=https:reader042vdocumentsusreader042viewer20220413015e11a270172d47445801965ahtml5page3jpg target=_blank img data-url=s3-ap-southeast-1-8-n02-vun-cu-c-can-to-c-mn02-xt-h2s04-1-to-khng-khhtmlpage=3 data-page=3 class=ts-thumb lazyload alt=Page 3: s3-ap-southeast-1amazonawscom€¦7 8 N02 vun Cu Cô can to có Mn02 xt H2S04 1 to không khí xanh 021 que dóm bùng cháy N02 nâu 2KC103 2KC1 + 3021 3NaN02 + H2S04 1 loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader042vdocumentsusreader042viewer20220413015e11a270172d47445801965ahtml5thumbnails3jpg width=140 height=200 adivdiv