oxygen怎么读
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jiangbo0229 共回答了16个问题
|采纳率87.5%- oxygen 英['ɒksɪdʒən] 美[ˈɑksɪdʒən]
n.[化]氧,氧气
[例句]It even has an onboard oxygen canister.
它甚至还随身携带氧气瓶. - 1年前
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|采纳率87%解题思路:氧气的化学性质比较活泼,能与许多物质发生化学反应,也有些物质不能和氧气反应.氧气不易溶于水,在液态或固态时是淡蓝色的.A、由于氧气能支持燃烧,可用带火星的木条检验氧气.故正确;
B、鱼、虾能在水中生存,说明氧气能够溶于水,氧气的溶解性是不易溶于水.故错误;
C、氧气在-183℃变为淡蓝色液体,故错误;
D、氧气的化学性质比较活泼,故错误.
答案:A.点评:
本题考点: 氧气的化学性质;氧气的物理性质.
考点点评: 解答本题要掌握氧气的物理性质和化学性质两方面的知识,例如氧气在不同的状态下颜色是不同的,氧气不易溶于水,溶解在水中的少量氧气可以供给水中生物的呼吸作用.1年前查看全部
- The two elements _____water is made are th oxygen and hydrog
The two elements _____water is made are th oxygen and hydrogen.
A that
B which
C of which
D with which简彼特1年前1
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郁郁而活 共回答了25个问题
|采纳率92%C.
前面半句如果不用从句说法就是:
Water is made of two elements.
那么用从句就成了:
The two elements of which water is made are...
介词在这里在疑问代词which之前,相似的用法还有:
I speak two languages one of which is English.
This is the process by which the sauce is reduced.1年前查看全部
- Trees can give out oxygen. 这句的同一句(只改GIVE OUT )
山宽水窄1年前1
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蜜兔子 共回答了11个问题
|采纳率90.9%Trees can emit oxygen.1年前查看全部
- Write the symbol of oxygen. Try to do this without referring
Write the symbol of oxygen. Try to do this without referring to a table of elements.
问的是元素符号还是符号?我写O就OK了吗?
How many protons (and electrons) are in an atom of lithium?
答案是3吗?生命的盲肠1年前1
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静流鑫情 共回答了17个问题
|采纳率94.1%你答的是SAT的题吧?
问题1:写出氧的符号.尝试不要看元素周期表.答:O
问题2:锂元素中有多少质子和电子?它问的有点问题,应该是or,因为原子中质子数=电子数
如果原题是and,那么就是6.如果是or就是3.
回答完毕.1年前查看全部
- 英语翻译Kinetics of acid-oxygen leaching of low-sulfur Ni-Cu mat
英语翻译
Kinetics of acid-oxygen leaching of low-sulfur Ni-Cu matte at atmospheric pressure
A study of the leaching of low-sulfur Ni-Cu matte in acid-oxygen (CuSO4-H2so4-O2)solution at atmospheric pressure was described in present work .This matte was obtained from high grade Ni-Cu matte by magnetic separation ,which mainly contained Ni-Cu alloy and small quantity sulfides .The effects of variations in temperature ,agitation,oxygen flow rate ,particle size,acid concentration and concentration of copper ion were all studied.It was found that the matte particles were leached by shrinking core mechanism and electrochemical in natural .At a temperature range of 30-60℃,the surface reaction was rate-limiting step,with an apparent activation energy of 41.9 kj.mol-1.But at higher temperature(70-85℃),the rate process was controlled by diffusion through the product layer,with an apparent activation energr of 7.3 kj-mol-1.mmm1002001年前1
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jidengjiam6204 共回答了14个问题
|采纳率92.9%动力学酸氧低硫镍铜浸出亚光在大气压力
作者:低含硫镍锍酸铜氧(硫酸铜,硫酸,氧气)在常压浸出液中描述的研究是目前的工作.这是从高档亚光镍铜锍得到了磁分离,主要含镍铜合金及少量硫化物.在温度,搅拌,氧气流量,颗粒大小,浓度和铜离子浓度变化的研究都影响.有人发现,通过缩小磨砂粒子在自然的核心机制和电化学淋溶的30-60℃温度范围.,表面反应速率限制与41.9 kj.mol- 1的表观活化能步骤.但是在较高温度(70-85℃),运动过程进行控制,通过产品扩散层,具有7.3千焦耳- mol - 1的表观活化能energr.1年前查看全部
- 英语翻译Oxygen Enhanced Exhaust Gas Recirculation for Compressio
英语翻译
Oxygen Enhanced Exhaust Gas Recirculation for Compression Ignition Enginesbabymng1年前1
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lili_tt 共回答了19个问题
|采纳率89.5%富氧废气再循环压燃式发动机,
或
压燃式发动机富氧废气再循环1年前查看全部
- water can de produced by_(cornbine)hydroge and oxygen
water can de produced by_(cornbine)hydroge and oxygen
正确形式填空8811364011年前1
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seebio 共回答了16个问题
|采纳率93.8%cornbining1年前查看全部
- water encourages the--------of iron and oxygen to from rust
water encourages the--------of iron and oxygen to from rust a reaction b decomposition c response d answer
七柯01年前2
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sweet83818 共回答了17个问题
|采纳率94.1%A reaction 反应,全文意思为水促进氧和铁的反应1年前查看全部
- 找一篇国外文献:Effects of temperature and oxygen depletion on metab
找一篇国外文献:Effects of temperature and oxygen depletion on metabolic rates of tomato and carro
这是文献的相关信息:
R.S.Criddle,R.W.Breidenbach,E.A.Lewis,D.J.Eatough,L.D.Hansen,Effects of temperature and oxygen depletion on metabolic rates of tomato and carrot cell cultures and cuttings measured by calorimetry,Plant Cell Environ.11 (1988) 695–701.aqualeilei1年前1
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beibei535 共回答了14个问题
|采纳率92.9%给你传附件了.1年前查看全部
- chloroplast,muscle,nerve,brain,cancer,oxygen和atmosphere可数吗?
chloroplast,muscle,nerve,brain,cancer,oxygen和atmosphere可数吗?
liver是不是不可数?马前兵1年前1
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sunyu1024 共回答了21个问题
|采纳率95.2%chloroplasts n.叶绿体(chloroplast的复数)
muscles n.肌肉(muscle的复数)
nerves n.神经;神经紧张;胆量(nerve的复数)
brains n.智力;脑髓(brain的复数)
cancers n.癌症(cancer的复数)
oxygen 氧气 不可数
atmospheres n.气氛(atmosphere的复数形式);氛围
livers n.肝脏(liver的复数)1年前查看全部
- 英语翻译Oxygen atmosphere promoted the densification in normal r
英语翻译
Oxygen atmosphere promoted the densification in normal rate sintering,while oxygen inhibited the densification in fast firing这一句呢?风_-_1年前2
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lu_zh 共回答了21个问题
|采纳率90.5%致密纳米ITO粉末在快速烧成试样的质量和烧结气氛的影响
氧气气氛促进正常率烧结致密化,而氧抑制快速烧成致密1年前查看全部
- oxygen is to us what fish is to water.这个句子怎么翻译 是个什么句子 句子成分是什
oxygen is to us what fish is to water.这个句子怎么翻译 是个什么句子 句子成分是什么
catcat61年前5
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8946228 共回答了16个问题
|采纳率100%氧气对我们来说就像鱼跟水的关系~~~
表语从句~~1年前查看全部
- Is oxygen are the only gas____ helps fire burn?
Is oxygen are the only gas____ helps fire burn?
A.that
Bwhich
C.it
为什么不能选B?烟花永殇1年前3
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檀小宝 共回答了22个问题
|采纳率81.8%要记,
先行词被only修饰时,只能用that,被最高级,不定代词或序数词修饰时,同样.
有助于燃烧的唯一气体是氧气吗
妮妮为你解答,如果还不明白欢迎追问1年前查看全部
- 一道初二主谓一致题.急4Water ________(consist)of hydrogen and oxygen
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dnahk 共回答了19个问题
|采纳率84.2%consists1年前查看全部
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