Structured questions
... There are several alternative sources of energy. For each of the following sources of energy, state ONE advantage and ONE disadvantage of using each of them as an alternative to fossil fuels. (1) Solar energy (2) Geothermal energy ...
... There are several alternative sources of energy. For each of the following sources of energy, state ONE advantage and ONE disadvantage of using each of them as an alternative to fossil fuels. (1) Solar energy (2) Geothermal energy ...
05 Halogen deriv. of hydrocarbons. Alcohols,ethers, esters
... isomeric alcohols follow the order primary > secondary > tertiary. Noneseless, isopropylalcohol is used commercially instead of normal propyl alcohol, because it is cheaper. Isopropyl alcohol is slightly more active than ethyl alcohol against vegetative bacterial growth, but alcohola are largely ine ...
... isomeric alcohols follow the order primary > secondary > tertiary. Noneseless, isopropylalcohol is used commercially instead of normal propyl alcohol, because it is cheaper. Isopropyl alcohol is slightly more active than ethyl alcohol against vegetative bacterial growth, but alcohola are largely ine ...
Production of Materials by Jason Yu #2
... IDENTIFY DATA, PLAN AND PERFORM A FIRST-HAND INVESTIGATION TO COMPARE THE REACTIVITIES OF APPROPRIATE ALKENES WITH THE CORRESPONDING ALKANES IN BROMINE WATER ANALYSE INFORMATION FROM SECONDARY SOURCES SUCH AS COMPUTER SIMULATIONS, MOLECULAR MODEL KITS OR MULTIMEDIA RESOURCES TO MODEL THE POLYMERISAT ...
... IDENTIFY DATA, PLAN AND PERFORM A FIRST-HAND INVESTIGATION TO COMPARE THE REACTIVITIES OF APPROPRIATE ALKENES WITH THE CORRESPONDING ALKANES IN BROMINE WATER ANALYSE INFORMATION FROM SECONDARY SOURCES SUCH AS COMPUTER SIMULATIONS, MOLECULAR MODEL KITS OR MULTIMEDIA RESOURCES TO MODEL THE POLYMERISAT ...
Common ethanol fuel mixtures
Several common ethanol fuel mixtures are in use around the world. The use of pure hydrous or anhydrous ethanol in internal combustion engines (ICEs) is only possible if the engines are designed or modified for that purpose, and used only in automobiles, light-duty trucks and motorcycles. Anhydrous ethanol can be blended with gasoline (petrol) for use in gasoline engines, but with high ethanol content only after minor engine modifications. Ethanol fuel mixtures have ""E"" numbers which describe the percentage of ethanol fuel in the mixture by volume, for example, E85 is 85% anhydrous ethanol and 15% gasoline. Low-ethanol blends, from E5 to E25, are also known as gasohol, though internationally the most common use of the term refers to the E10 blend.Blends of E10 or less are used in more than 20 countries around the world, led by the United States, where ethanol represented 10% of the U.S. gasoline fuel supply in 2011. Blends from E20 to E25 have been used in Brazil since the late 1970s. E85 is commonly used in the U.S. and Europe for flexible-fuel vehicles. Hydrous ethanol or E100 is used in Brazilian neat ethanol vehicles and flex-fuel light vehicles and hydrous E15 called hE15 for modern petrol cars in the Netherlands.