[主观题] Which statement about ethanol is correct() A.AIt burns in air to form ethene and water B.BIt is prepared from ethene by fermentation C.CIt is prepared from glucose in an addition reaction D.DIt is the only product when ethene reacts with steam查看答案...
a. orange juice b. wine c. steam d. oxygen e. vegetable soup Pure substances: Pure substances are made from only one type of particles and a constant structure. The properties or the chemical composition of the pure substances remain th...
Sections were then counterstained with eosin for 1 min, washed with DW for 6 min, dehydrated with a graded sequence of ethanol consequences, anhydrous ethanol and xylene, then cover-slipped and dried overnight. The tissue sections were observed under the microscope (200×) and the Servicebio ...
The nutritional functions of tributyrin (TB) have been extensively studied, but questions remain regarding its influence on the growth of juvenile grass carp (Ctenopharyngodon idellus) and the regulation pathway to PepT1 in the intestine of grass carp. T
The samples were disinfected in a laminar air flow chamber by rinsing in 70% ethanol for 30 sec, followed by immersion in 20% (v/v) commercial bleach (2.0–2.5% active chlorine) for 20 min. The samples were then rinsed in sterile distilled water and the embryos were extracted. 4.2. ...