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硫代硫酸钠（Na2S2O3）是重要的化工原料，易溶于水，在中性或碱性环境中稳定，在酸性溶液中分解产生S、SO2． Ⅰ．Na2S2O3的制备．工业上可用反应：2Na2S+Na2CO3+4SO2＝3N...
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高三下学期化学《》真题及答案
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硫代硫酸钠Na2S2O3俗称大苏打海波是无色透明的单斜晶体易溶于水不溶于醇．硫代硫酸钠Na2S2O
﹣2
+2
+6
+4
硫代硫酸钠Na2S2O3是一种用途广泛的物质某硫代硫酸钠样品中含有少量的硫酸钠现取16g该样品放入烧
Na2S2O3的名称为
硫酸钠
亚硫酸钠
硫代硫酸钠
硫代二硫酸钠
配制0.1mol∕L硫代硫酸钠Na2S2O3标准溶液称取g硫代硫酸钠或g无水硫代硫酸钠溶于1000m
硫代硫酸钠Na2S2O3可用做分析试剂及鞣革的还原剂它受热遇酸易分解工业上可用反应2Na2S＋Na2
硫代硫酸钠是一种重要的化工产品某兴趣小组拟制备硫代硫酸钠晶体Na2S2O3·5H2OⅠ.[查阅资料]
硫代硫酸钠Na2S2O3可用做分析试剂及鞣革的还原剂它受热遇酸易分解工业上可用反应2Na2S＋Na2
硫代硫酸钠Na2S2O3晶体是一种恒温保温瓶的填充物硫代硫酸钠属于
氧化物
酸
碱
盐
氧化还原滴定中硫代硫酸钠的基本单元是
Na2S2O2
1/2Na2S2O2
1/3Na2S2O2
1/4Na2S2O2
Na2SO3的名称为
硫酸钠
亚硫酸钠
硫代硫酸钠
硫代二硫酸钠
亚硫酸钠Na2SO3是一种重要的化工原料大量用于染料工业亚硫酸钠中硫元素的化合价是
+6
+2
一2
+4
硫代硫酸钠晶体是一种恒温保温瓶的填充物硫代硫酸钠Na2S2O3属于
氧化物
酸
碱
盐
Na2S2O3硫代硫酸钠是常用的化工原料下列说法正确的是1硫代硫酸钠的相对分子质量为_______2
下列各物质的学名是Na2S2O3叫硫代硫酸钠CaSx叫多硫化钙Na2O2叫过氧化钠KO2叫超氧化钾试
硫代碳酸钠
多硫碳酸钠
过硫碳酸钠
超硫碳酸钠
硫代硫酸钠晶体是一种恒温保温瓶的填充物俗称海波大苏打硫代硫酸钠Na2S2O3属于
氧化物
酸
碱
盐
Na2S2O3的名称为
硫酸钠
亚硫酸钠
硫代硫酸钠
硫代二硫酸钠
硫代硫酸钠Na2S2O3是一种重要的化工原料大量用于染料工业．硫代硫酸钠中硫元素的化合价是
﹣2
+2
+4
+6
硫代硫酸钠Na2S2O3是一种重要的化工产品易溶于水遇酸易分解Na2S2O3稀溶液与BaCl2溶液混
氧化还原滴定中硫代硫酸钠的基本单元是
Na2S2O3
1/2Na2S2O3
1/3Na2S2O3
1/4Na2S2O3
硫代硫酸钠是一种重要的化工产品某兴趣小组拟制备硫代硫酸钠晶体Na2S2O3·5H2OⅠ.[查阅资料]
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如图已知函数fx的图象关于坐标原点对称则函数fx的解析式可能是
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已知i是虚数单位则2+ii＝
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高三下学期生物
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