用英文描述一个化学小实验
Electrolysis of water1. prepare at least 3 battery(5V)2. two litre distilled water 3. take two different wire into water and with tow electric poles4. at the end of wire which end in water take two test tube5. watch and learn why does one side has 8 times more volume than another6. conclusion: water is made by H and O and O has 8 more volume than H O has two more mole than H( H= hydrogen O=oxygen )
我写一个用镁和氧气做的实验。在我印象里这是我们化学课做的第一个实验。
A ring stand is setup and a crucible is placed on the ring stand.
A bunsen burner is placed under the ring stand and lit.
A strip of magnesium is taken and placed in the crucible.
The strip is oxidized and the flame and ashes are visible.
Method：1、Light up the bunsen burner with a match .
2. Use the crucible clamped up the article magnesium,hang over the bunsen burner.
Result： Release strong lights and heat,enerate oxidation reaction products .
Conclusion:Lively metal can develop severe chemical reaction with air.
The experiment is magnesium in lighting up in the air article, understand and lively metal and air heating response. We need to alcohol lamp, crucible clamp, matches and article magnesium. First of all, with the match to light lamp alcohol. Then use crucible clamped up article magnesium. On alcohol light lit. Experimental phenomenon is a strong light, heat, generating oxide. And then found lively and metal and air heating jitters after. Next,Next,it's time to witness the miracle
用英文描述一个化学小实验
Aim： To understand the combustion reaction between lively metal and air .Method：1、Light up the bunsen burner with a match .2. Use the crucible clamped up the article magnesium,hang over the bunsen burner.Result： Release strong lights and heat,enerate oxidation reaction p...
一个英语跟一个化学小问题
satisfied更侧重于满意,而pleased更侧重于高兴欣喜.次氯酸:HClO(氯的价态为+1)亚氯酸:HCLO2(氯的价态为+3)氯酸:HClO3(氯的价态为+5)高氯酸:HClO4(氯的价态为+7)氧化性HClO>HClO2>HClO3>HClO4
二溴二氟甲烷基本信息
从英文角度来看，其被称作“dibromodifluoromethane”、“Freon 12B2”、“Halon-1202”或者“R 12B2”，这些名称在不同行业中有着不同的应用和识别方式。其EINECS编号为“200-885-5”，这是一种在欧盟使用的化学物质注册编号系统。在分子结构上，二溴二氟甲烷的分子式为“CBR2F2”，分子量为“209....
L-酪氨酸乙酯基本信息
L-酪氨酸乙酯，以中文命名，指的是具有特定化学结构的化合物。在化学领域，它被广泛研究和应用，展现出丰富的性质和功能。其英文名称为L-tyrosine ethyl ester free base[1]，这一表述强调了它的化学结构特点和自由基状态。此外，L-酪氨酸乙酯还被称为ethyl tyrosinate、H-Tyr-OEt、Tyrosineethylester...
有关化学的英文 请翻译
element 第二种原子跟第一种原子的质量比 will also be in ratios of small whole numbers。仍然是小的整数 不同原子间的结合是按照一定的小的整数比进行的。而且它们的质量比也是整数比。也就是不仅个数比，质量比也是。如二氧化碳，数目比1：2，质量比：24：32=3：4，还是比较小的整数比。
科技小短文---介绍一种化学新材料,
纳米是英文namometer的译音，是一个物理学上的度量单位，1纳米是1米的十亿分之一；相当于45个原子排列起来的长度。通俗一点说，相当于万分之一头发丝粗细。就象毫米、微米一样，纳米是一个尺度概念，并没有物理内涵。当物质到纳米尺度以后，大约是在1—100纳米这个范围空间，物质的性能就会发生突变，...
高中化学的一个小问题
即是说CO32-大量存在时，其pH高于HCO3-大量存在时的pH 所以当加入少量NaOH时，溶液中依然存在HCO3-，加入过量NaOH时溶液中就大量存在CO32-了 即Ca(HCO3)2+NaOH(少量)=CaCO3↓+NaHCO3+H2O Ca(HCO3)+2NaOH(过量)=CaCO3↓+Na2CO3+2H2O 我是这么理解的 还有疑问请提，For the lich king ...
一个化学小疑问
HS-→←（可逆）H+(离子)+S2-(离子)其中 Cu2+与S2-反应生成CuS↓ 促进 上述2个可逆反应正向移动 导致H+增加 H2S+Cu2+(离子)=CuS↓+2H+（离子） 反应都是出生更难电离的物质而发生反应（CuS比H2S更难稳定） 强酸制弱酸是此反应中的一种代表 因为 强酸是强电解质 弱酸一般就是弱...
关于化学一个小问题。
例如收集氧气，因为氧气质量比空气重，所以要长管进，短管出，把空气给压出去，这是瓶口向上的情况。一般就是比较该气体和瓶中原有其他的质量，大于原来气体时，长管进，小于时，短管进。
纳米是什么意思
纳米,也叫毫微米、奈米,是长度的度量单位,英文为Nanometer,因此纳米符号为nm。1纳米=10的负9次方米,比单个细菌的长度还要小的多。 【纳米基本含义】 单个细菌用肉眼是根本看不到的,用显微镜测直径大约是五微米。假设一根头发的直径是0.05毫米,把它轴向平均剖成5万根,每根的厚度大约就是1纳米。也就是说,1纳米就...
闳邱诺佳：[答案] Aim:To understand the combustion reaction between lively metal and air . Method:1、Light up the bunsen burner with a match . 2.Use the crucible clamped up the article magnesium,hang over the bunsen burner. Result:Release strong lights and heat,...
灵山县13691009219： 帮忙写一篇化学实验过程,用英语写简单点的 - ？
闳邱诺佳：[答案] 我写一个用镁和氧气做的实验.在我印象里这是我们化学课做的第一个实验.A ring stand is setup and a crucible is placed on the ring stand.A bunsen burner is placed under the ring stand and lit.A strip of mag...
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