The colorless gas composed of nitrogen ... but it is usually stored and transported as a liquid under high pressure. The ...
Liquid contained in glass B' was colorless; it becomes blue ... then one decigramme of copper sulphate is dissolved in it. Ammonia is added in small portions until an intense blue color appears.
Methanol is the ideal replacement for fossil fuels in numerous key industries. This conclusion was reached by the engineering and consulting firm ILF Consulting Engineers, the patent and law firm ...