What do we know about graphite according to the next? A. It is soft and can be easily cut into sticks . B. It was used to write words in ancient Rome. C. It could not be used to mark sheep. D. It is in the form of liquid. 相关知识点: 试题来源: 解析 A 反馈 收藏 ...
Carbon alone forms the familiar substances graphite and diamond. Both graphite and diamond are made only of carbon atoms. Graphite is very soft and slippery. Diamond is the hardest substance known to man. If both are made only of carbon what gives them different properties? The answer lies in...
Do you know graphite (石 )? This soft black material is often used to make pencils. But did you know you could complete a simple circuit(电路) using a graphite pencil? Here is an easy science experiment for you to understand the conductivity of graphite.Steps:①Use your graphite pencil to...
1. Diamond is hard and graphite is soft. 2. Diamond is soft and graphite is hard. 3. Diamond is a bad conductor but graphite is a good conductor 4. Diamond is a good conductor but graphite is a bad conductor. Which of the statements given above is/are correct ? A1 and 3 ...
Is graphite an igneous rock? Is diamond a metamorphic rock? Is limestone a hard or soft rock? Are silicate minerals igneous rocks? Is feldspar a rock or mineral? Is halite a chemical sedimentary rock? Is gold igneous, metamorphic, or sedimentary?
1. Graphite is can be described as a) hard and crystalline b) soft and slippery c) a dark liquid d) made only of carbon and hydrogen atoms 2. Diamond is a) made only of carbon and hydrogen atoms b) the hardest substance know to man ...
(57)< Abstract > The soft graphite seat is inserted and is exfoliated and between layer the surface compressing the blend of the particle where the natural graphite which is expanded is large relatively and between layer to be inserted is produced by the surface to be exfoliated the particle ...
You are unlikely to be unfamiliar with graphite (石墨). This soft black material is often used to makepencils. But did you know you could complete a simple circuit (电路) using a graphite pencil? Here is an easyscience experiment for you to understand the conductivity of graphite.Step①Use...
Graphite and diamonds are made up of carbon atoms. Graphite, however, is soft and can be used to write with while diamonds are the hardest substance known to man and are the only substances that can be used to cut other diamonds. What is the main rea...
A.However, since the graphite is too soft, the pencils were easy to break. B.It’s what people think of when they think of a pencil and what they most probably will buy when their children are about to learn to write. C.People cut it into small sticks and used them to write or ...