第1个回答 2012-04-07
Practical chemical:
I think that chemistry is a very interesting and important practical disciplines and scientific fields. It exists in our lives all the time. There are already hundreds of different physiological and chemical activities just in your body: red blood cells transport oxygen, DNA replication, digestion and absorption ... the use of the chemical can also manufacture of nuclear weapons, a variety of drugs, plastics and all sorts of industrial supplies for human need. Chemistry also has many interesting chemical reactions, such as: reduction reaction, oxidation, condensation, polymerization, esterification and the silver mirror reaction etc. However, there is danger of the energy on Earth may one day be consumed, therefore chemistry came in handy. Solar energy not only has the "inexhaustible, unlimited features, and the sun produces solar energy far exceeds the Earth energy consumption, so it is also superior than other clean energy. Study the photosynthesis of green plants, study film photo-sensitivity, and raised only be able to efficiently convert solar energy into electrical energy photoelectric conversion materials and devices, chemical and other science and technology will solve the problems we are facing a huge contribution. So let us learn all the science and technology, to save this beautiful but fragile Earth!本回答被提问者采纳
第2个回答 2012-04-14
Practical chemistry
I think chemistry is a very interesting, important, practical science and scientific fields. It every hour and moment does not exist in our life. Just in your body, there are hundreds of chemically related physiological activities: red cell delivery of oxygen, DNA replication, digestion and absorption ... ... The use of chemical and nuclear weapons, various drugs, plastics, industrial supplies and other human need. Chemical and many interesting chemical reactions, such as: reduction, oxidation, condensation reaction, polymerization, esterification, silver mirror reaction ... ... However, in the face of the earth energy is there may be consumed in the crisis, then, the chemical comes in handy. Because the solar energy is not only the "inexhaustible, be inexhaustible" characteristics, and the sun produces solar far exceeds the energy consumption of the earth, so superior to other clean energy. Study of the photosynthesis of green plants, to study film ability, raise only can effectively convert solar energy into electrical energy and the photoelectric conversion materials and devices, chemical and other technology to solve the problems we face make enormous contribution. So, let us learn all the science and technology, to save the beautiful and fragile planet!
第3个回答 2012-04-14
Practical chemical:
I think that chemistry is a very interesting and important practical disciplines and scientific fields. It exists in our lives all the time. There are already hundreds of different physiological and chemical activities just in your body: red blood cells transport oxygen, DNA replication, digestion and absorption ... the use of the chemical can also manufacture of nuclear weapons, a variety of drugs, plastics and all sorts of industrial supplies for human need. Chemistry also has many interesting chemical reactions, such as: reduction reaction, oxidation, condensation, polymerization, esterification and the silver mirror reaction etc. However, there is danger of the energy on Earth may one day be consumed, therefore chemistry came in handy. Solar energy not only has the "inexhaustible, unlimited features, and the sun produces solar energy far exceeds the Earth energy consumption, so it is also superior than other clean energy. Study the photosynthesis of green plants, study film photo-sensitivity, and raised only be able to efficiently convert solar energy into electrical energy photoelectric conversion materials and devices, chemical and other science and technology will solve the problems we are facing a huge contribution. So let us learn all the science and technology, to save this beautiful