Hydrogen peroxide is a/an ___. A. element B. compound C. mixture D. solution 相关知识点: 试题来源: 解析 B。过氧化氢是化合物。选项 A“element”是元素;选项 B“compound”是化合物,过氧化氢由氢和氧组成;选项 C“mixture”是混合物;选项 D“solution”是溶液。反馈...
题目In chemistry, a mixture is different from a ___. A. compound B. element C. atom D. molecule 相关知识点: 试题来源: 解析 A。在化学中,混合物不同于化合物,“compound”是化合物,“element”是元素,“atom”是原子,“molecule”是分子。反馈 收藏 ...
What is a Solution? A solution is a mixture of one substance dissolved in another so the properties are the same throughout. A solution is composed of a solute and the solvent. The solute is the substance being dissolved and the solvent is the part of the solution that does the dissolving...
一、 写出画线词语的汉语意思。1. Air is a mixture, not a compound of gases.2. I need to buy a new computer monitor.3. The monument was built in memory of George Washington, the first President of the United States. 相关知识点: 试题来源: 解析 1.混合物 2.显示器 3.纪念碑 ...
百度试题 结果1 题目3. Air is a mixture (mix), not a compound of gases. 相关知识点: 试题来源: 解析 答案见上 反馈 收藏
百度试题 结果1 题目3. Air is amixture(mix),not a compound of gases. 相关知识点: 试题来源: 解析 答案见上 反馈 收藏
its a mixture of cale its a part of my life its a peaceful night its a special occasio its a way of lifea st its about fangs claws its about my grandfat its all a big show its all a lie its all because of yo its all for you soon its always been hell its an old storage ro...
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轮机英语题库翻译.pdf,第一章 船舶动力装置 0001 Before disconnecting the Oil pipe , would y lu ipe ? ” asked the oil barge owner. 0001 B ou f sh th a ned in the p e oil ret i y n A. b usi g o fres f h water (用淡水) wi pres 缩气 B. th com sed air (
Argon is not a compound, but a noble gas. Oxygen is not a compound, but a diatomic molecule, and carbon dioxide is a compound.In summary, air is a mixture of several gases, with the majority being nitrogen and the rest being oxygen, argon, and carbon dioxide. It is not a ...