To get well, a chemistry treatment is necessary哪里错了?

---- You haven’t got the textbook for my chemistry course yet. ---- I know, and we _____ to get it for the last 5 weeks. A．will have been trying B．have been trying C．will be trying D．had tried

we have maths and chemistry in the morning 对划线提问 ,划线的in the morning

AP Chemistry (16)
How many ways to collect gas?
How to displace the air?
What are their advantages?

You haven't get the textbook for my chemistry course yet.回答I know,and we __to get it for the last 5 weeks.

Chemistry titration problem?
Tris(hydroxymethyl)aminomethane, commonly called TRIS or Trizma, is often used as a buffer in biochemical studies. Its buffering range is pH 7 to 9, and Kb is 1.19 multiplied by 10-6 for the following aqueous reaction.
(HOCH2)3CNH2 + H2O (HOCH2)3CNH3+ + OH -
Question:
1.A buffer is prepared by diluting 42.2 g TRIS base and 65.9 g TRIS hydrochloride (written as TRISHCl) to a total volume of 2.0 L. What is the pH of this buffer?
2.What is the pH after 0.49 mL of 12 M HCl is added to a 200.0 mL portion of the buffer?
Chemistry titration problem2?
A buffer solution contains 0.10 mol of propionic acid, HC3H5O2, and 0.10 mol of sodium propionate, NaC3H5O2, in 2.60 L.
What is the pH of the buffer after the addition of 0.01 mol of NaOH?
Chemistry titration problem 3?
Aniline hydrochloride, [C6H5NH3]Cl, is a weak acid. [Its conjugate base is the weak base aniline, C6H5NH2 . The acid can be titrated with a strong base such as NaOH:
Assume 48.2 mL of 0.100 M aniline hydrochloride is titrated with 0.185 M NaOH. (Ka for aniline hydrochloride is 2.4 multiplied by 10-5.)
Calculate the pH of the solution after adding 5.0, 10.0, 20.0, and 30.0 mL of the base.

He can also learn Chinese,math,physics,chemistry and many other subjects.找错
3Q

长难句 句子成分分析
we may define chemistry as the science in which we deal with the chemical change in matter as a result of which it is possibile to form a new substance 请帮忙具体划分一下句子的主谓宾等成分 定语从句部分 以及 "in matter as a result of" 在句子里的成分 作用

我每周一九点上化学课的英文--------------I （ ）chemistry at（ ）（ ）every Monday

英语翻译
如：History Physic Geography Chemistry Maths Music Art P.E.

What do you think of chemistry?---- I find ____ very interesting.A it B its C/ D it was应该选哪个

Our chemistry teacher announced that he would do the experiment in a different way ____________ we might find interesting.
A which B.in which
原因

We must do something( )(stop) the ( )(chemistry) factory from( )(pour) the waste water( )(介词) the

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

首字母填空
The passage about chemistry is hard to understand.It has many t_______.
As a stuent,my first t______(job,piece of work to be done)is to study hard.

——Where did you come across our chemistry teacher ? ------ It was in the supermarket ______ I purchased mooncakes. A．that B．which C．where D．when

1.I have many books,some of __________ are on chemistry.
A.them B.that C.which D.those
2.They were interested __________ you told them.
A.in which B.in that C.all that D.in everything
3.The astronaut did many experiments in the spaceship,__________ much help for knowing space.
A.which we think it is B.which we think are of
C.of which we think is D.I think which is of
4.The great day we looked forward to __________ at last.
A.come B.came C.coming D.comes
5.I like the second football match __________ was held last week.
A.which B.who C.that D./

She is ___ newcomer to ____ chemistry but she has already made some important discoveries.
A. a; / B. a ; the
选哪个,怎么分析的?

Do you think this chemistry lesson is interesting?Why?【读短文回答问题】
My friend Paul will never forget his first chemistry teacher.He was a little man with thick glasses,but he had a strange way of making his classes lively and interesting.And his lessons were not easily forgotten.
　　Paul remembers one of his first lessons from this teacher.After the students were all in the chemistry lab,the teacher brought out three bottles.One was filled with petrol（汽油）,one with castor oil（蓖麻油）and one with vinegar（醋）.“Now watch carefully,”said the teacher.
　　He then filled a cup with some of the petrol,some of the castor oil and some of the vinegar.As the students watched him quietly,he mixed the three together.After that,he held up one of his fingers and showed it to the class.He then dipped it into the cup.After a few seconds he took his finger out.“Now watch,”he said.“Remember,you must do everything as I do.”
　　He put a finger in his mouth,tasted it and smiled,looking rather pleased.Then he handed the cup around the class of students.Each student dipped a finger into the mixture and sucked （吮吸）it.Instead of smiling,each of them made a face.The mixture tasted terrible.
　　When the cup was at last returned to the teacher,he said sadly,“I'm sorry,none of you watched carefully enough.Yes,I sucked a finger,but the finger I put into my mouth was not the one I had dipped into the cup.”
　　It was Paul's first important lesson as a student of chemistry and he never forgot it.
Do you think this chemistry lesson is interesting?Why?【至少6句话】

38.We study Chinese,maths,chemistry and biology at school.
A B C D
找出错误
但我觉得B也可以啊,maths=math,

we were required to take more organic chemistry classes than other courses each week.
我们每周上更多的有机化学课.以上翻译对吗?如不对,请指正!

Organic Chemistry Question
How is the difference in behaviour between ethene and ethane accounted for?
Answer in english will be better,thanks

chemistry question about acid
what are the basicity of HCl and CH3COOH?

A chemistry question
Explain why chlorine is a gas at room temperature

【求解释】Jim knows little of mathematics,___ of chemistry.
A.and still less
B.as well as
C.no less than
D.and still more

several of the people in my chemistry class suddenly got sick last night and had to go to the hospital.three other classmates of mine were already in the hospital with a mysterious illness.为什么three other claamates of mine 有错?

Chemistry问题【高悬赏】
1：An element is a substance that is made up of only one kind of atoms.
One kind是指同一个的atom,还是Metal或者non-metal两大类中的一类?
2：an element=an atom?有什麼分别?最好举个例子.

--Does she study physics or chemistry? --she studies _____
A either B none C neither D all

都要有理由
1、The chemistry problem is （） difficult （） I can't work it out
A、too to B、so that C、very to D、too that
2、It changed （） the beginning of the new team
A、on B、in C、at D、for
3、He told me,“Always keep your dream.”Wtith tears in my eyes,I （） the university
A、came over to B、ran into C、got out of D、went into
5、Jim,please help me （c ） the bananas into pieces
第五题是首字母填空

化学High School Chemistry problems---urgency
4 solutions
0.1M NaF
0.1M MgCl2
0.1M C2H5OH
0.1M CH3COOH
answer following questions which refer to the 100mL samlples of aqueous solutions at 25°C in the stoppered flasks
1.which solution has the lowest electrical conductivity?explain
2.which solution has the lowest freezing point.explain
3.above which solution is the pressure of water vapor greatest?explain
4.which solution had the highest pH.explain.
i am really really confused and struggling in this kinda question...so appreciate anyone who can help
M is mole/L in the problem
in china it usually means the molar mass

I have Chemistry classes ____ day, Monday, Wednesday and Friday. 选择题
A. each other B. every other C. this and other D. all other 选哪个?其他三项为什么错了?

英语翻译
The very successes of physics and chemistry have ensured that biology shoud now present the key problems of the whole of natural science,offering a challenge to the understanding of the world in which we live,which will call for far more extensive and at the same time better co-ordinated effors than all those which science has deat with in the past.

My chemistry is very poor. I _______ physics _______ math.

[ ]

A. like, than B. learn, than C. prefer, to D. would rather, than

Thomas Edison ____ already ____ a chemistry lab for himself by the time he ____ ten.
A.has…built…was B.had…built…was C.would…build…was D.was…building…is

Chemistry seems to be _____ for me of all the subjects. A．difficult B．too difficult C．more difficult D．the most difficult

There is a new( ) lab in our school.A.chemical B.chemistry C.chemicals D.chemistry's

第一课的句子.
biology chemistry english japanese geography
russian history IT chinese mathematics
physics PE(physical eduction)
1、how many of the subjects are science subjects?
如何回答?
根据上面单词回答

初三词性转换
全都变为形容词
weigh
silence
chemistry
medicine
electricity
education
relation
wound

Physics and chemistry are ______(科学）,they are very interesting.

The prizes for physics and chemistry are ( )to the Swedish A cademy of Sciences.
括号里选填(reward ,award).