sodium+carbonate
官显松2747那位高人知道SSC溶液具体的成分和作用原理啊分子实验中用到的SSC溶液具体是做什么的啊? -
咸羽翠17534077413 ______[答案] SSC(saline sodium citrate)缓冲溶液是分子生物学中最标准的印迹和杂交处理溶液,其含有Sodium Chloride,Sodium Citrate,Trizma Base等成分.20倍SSC分子生物级浓缩缓冲溶液是一种旨在用于各种杂交实验达到变性和清...
官显松2747英文作文吃快餐的好处和坏处 -
咸羽翠17534077413 ______[答案] 第一篇 The Advantages and Disadvantages of Eating Fast Food Fast foods,such as hamburger and pizza only need a short ... such as Monosodium glutamate (MSG) and sodium which can improve the taste of food.However,eating fast foods also has ...
官显松2747关于快餐的好处与坏处的英语作文 -
咸羽翠17534077413 ______[答案] 第一篇 The Advantages and Disadvantages of Eating Fast Food Fast foods,such as hamburger and pizza only need a short ... such as Monosodium glutamate (MSG) and sodium which can improve the taste of food.However,eating fast foods also has ...
官显松2747什么是化合物 -
咸羽翠17534077413 ______[答案] 化合物是指从化学反应之中所产生,由两种或两种以上元素构成的纯净物(区别于单质).例如:氯化钠(sodium chloride,NaCl)是一种透过盐酸(hydrochloric acid,HCl)和氢氧化钠(sodium hydroxide,NaOH)的化学作用(中和反应)而成的化合物.
官显松2747Na+一K+泵是载体蛋白吗?它能体现载体蛋白的专一性吗? -
咸羽翠17534077413 ______[答案] 这个问题涉及到细胞上的两类膜蛋白.一种是泵(pump),另一种是离子通道(channel). 主动运输的蛋白我们最熟悉的就是钠钾泵.它主要是用来形成细胞膜内外的钠钾离子的梯度,使得细胞保持内部高钾离子,外部高钠离子的状态,这样就形成了...
官显松2747澄清石灰水与少量小苏打溶液混合的化学方程式Ca(OH)2+NaHCO3(少量)=H2O+CaCO3 想知道生成物是怎样推出来的 -
咸羽翠17534077413 ______[答案] 解析: 首先看反应实质,澄清石灰水与少量小苏打溶液混合,先是OH-与HCO3-中的H反应生成水H2O,HCO3- + OH- = CO32- + H2O ,生成的CO32-再和Ca2+结合生成CaCO3,由于Ca(OH)2过量,则有一个OH-没有和HCO3-反应,而和Na+结合生...
官显松2747...why metals are able to conduct heat and electricity?.2.explain why the melting point of magnesium(649 c)is much higher than the melting point of sodium(97.9 ... -
咸羽翠17534077413 ______[答案] 1.coz,the metals consist of atoms surrounded by electrons,the electros has electroconductivity. 2.It seems that the sodium has a better oxidability.Please check the sodium atom's nature and the periodic table of chemical element(atom or electro structure)...
官显松2747NaHCO3+Bacl反应的化学方程式? -
咸羽翠17534077413 ______[答案] 从理论上说,碳酸氢钠是不可能与氯化钡反应的,因为如果发生反应那只能是NaHCO3+BaCl2==BaCO3↓+HCl+NaCl,但BaCO3是可以溶解于HCl溶液的,也就是说上面的反应根本不会发生.