In chemistry,what is the difference between the structure and composition of matter?This is the question.I don't ask you to translate this sentence.

My ____(主要的）subject in college is chemistry.What about yours? What subject is ____, physics or chemistry? what is the relationship between chemistry and nature? so what happens here is we have a morden day analogy for what the oceans were a like in terms ofboths the chemistry and the biology.翻译? In chemistry,what is the difference between the structure and composition of matter?This is the question.I don't ask you to translate this sentence. This is the professor____taught me chemistry in 1980.急 minor in chemistry There is a new( ) lab in our school.A.chemical B.chemistry C.chemicals D.chemistry's 英语翻译As a result of what is now know in physics and chemistry,scientists have been able to make important discoveries in biology and medicine一句话怎么俩动词啊 is know 谁帮我解释下 I like chemistry very much because the teacher often e()with some根据首字母!I like chemistry very much because the teacher often (e )with some chemicals in class.I don't know what to do here because everything is(u )Tom is careless,He isn't the when is your chemistry lesson? 初三英语作文,90秒rules in the chemistry（what we can do,and what we can't do） The old man ____(whom/that)teaches chemistry in a college is a professor. It is one of the most important linkages in organic chemistry and constitutes the key fu 英文请翻译一下啊啊啊..Mass spectrometry and chromatography are widely used instrumental techniques in chemistry.问题是,What are the main principles on which each of these techniques is based.这里的each是要回答Mass spectrometry还 a chemistry problemA 340ml can of soft drink contains 25.5 g of wugar, 3 g of phosphoric acid, some colourant and flavour enhancer. What is the percentage sugar and phosphoric acid in the drink? chemistry chemistry