Finally, the ethanol produced in the previous stage is utilized as a fuel source for various modes of transportation, such as cars, trucks, and airplanes. During this utilization phase, ethanol undergoes combustion, releasing carbon dioxide back into the atmosphere. This carbon dioxide is then rea...
Q1 Q1. The table shows how much carbon dioxide is produced when you transfer the same amount of energy by burning coal, gas and oil. (a) Use thegains marks
根据后文“Many environmental experts,however,argue that it often saves energy to buy food that is produced naturally in faraway places than consuming food grown locally in greenhouses.”(然而,许多环境专家认为,购买远方自然生产的食物往往比消费温室里本地种植的食物更节省能源。)可知,此处是指购买当地...
The raw material used to make carbon fiber is called the precursor. 90% of the carbon fibers produced are made from polyacrylonitrile. The remaining 10% is made from rayon or petroleum pitch. All of these materials are organicpolymers. The characterization of organic polymers is formed by a lo...
Carbon dioxide is the main gas we exhale. It is produced by all cells in the body during the process of cellular respiration, which cells use to make energy. The body must transport carbon dioxide to the lungs to get rid of it.
All living matter absorbs carbon from the atmosphere, including an amount of radioactive carbon-14. It is mostly found in atmospheric carbon dioxide because that is where it is constantly being produced by collisions between nitrogen atoms and cosmic rays. What can carbon-14 dating be used for?
How many total moles are produced when 0.69mol of ethanol (CH3CH2OH) are combusted with oxygen to produce carbon dioxide and water? How many total moles are produced when 0.63 mol of ethanol (CH3CH2OH) is combusted in oxygen to produce carbon monoxide and water? I...
This type of smoke detector is more common because it is inexpensive and better at detecting the smaller amounts of smoke produced by flaming fires. Inside an ionization detector is a small amount (perhaps 1/5000th of a gram) of americium-241. The radioactive element americium has a half-...
Carbon dioxide is an odorless gas produced from the burning of fossil fuels. The purpose of this lab is to examine and graph CO_{2} concentrations values over the years.Materials: A sharp pencil Procedure:1. Examine dat a table containing CO, concentrations each month from 1987-19912. Plot...
Hexane reacts with oxygen according to the equation shown below.If 35.7g of heptane react,how many grams of carbon dioxide will be produced?__C6H14 + __O2 = __H2O + __CO2 (NOT BALANCED)翻译过来大概是这样:已烷和氧气如下列方程式反应.如果35.7克的庚烷反应了,那么有多少克的二氧化碳会生成?_...