In a chemical reaction, iron reacts with oxygen to form rust. What is the English name for iron? A. Copper B. Aluminum C. Iron D. Silver 相关知识点: 试题来源: 解析 C。本题考查铁的英文名称。选项 A 是铜,选项 B 是铝,选项 D 是银。只有选项 C 是铁。
Composition of the burnable material that defines which part of the compound can undergo reaction with oxygen; • Structure and shape of the material that defines which part of it would react: burning powder material will be more efficient than burning a single large piece that may not even ...
In chemistry, a reaction happens when two or more atoms on molecules interact and transform into a different compound. For example, rusting occurs when an 'oxidation' reaction makes iron combine with oxygen to form rust-coloured iron oxide. The opposite process, such as reactions that remove oxy...
化学反应产生新的分子。 Oxygen atoms take part in many chemical reactions. Oxygen and hydrogen atoms link up to make a molecule of water. 氧原子参与许多化学反应。氧和相连形成一个水分子。 The oxygen in a water molecule can link up with iron atoms in a car fender. The oxygen and iron react...
What is the correct chemical equation for the reaction between iron and oxygen? A. Fe + O₂ = Fe₂O₃ B. 2Fe + O₂ = 2FeO C. 4Fe + 3O₂ = 2Fe₂O₃ D. 3Fe + 2O₂ = Fe₃O₄ 相关知识点: 试题来源: ...
I'm currently working on a question in which two hydrocarbons (CH4and C2H) react with oxygen gas over time. (A valve will introduce air to the hydrocarbon mixture for a given period of time, and then it will be closed off.) I was just wondering how a limit of oxygen gas might react...
chemical reaction n (Chemistry) a process that involves changes in the structure and energy content of atoms, molecules, or ions but not their nuclei. Comparenuclear reaction Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000...
covered with a layer of copper) has turned greenish-blue. The statue would naturally turn greenish-blue due to exposure to the oxygen in the air. However, because some rain has acid from pollution in it, the rain speeds up the reaction (just as the vinegar caused the reaction with the ...
The reaction between hydrogen and oxygen to form water is a ___ reaction. A. chemical B. physical C. biological D. geological 相关知识点: 试题来源: 解析 A。氢气和氧气反应生成水是化学变化。B 选项 physical 是物理变化;C 选项 biological 是生物变化;D 选项 geological 是地质变化,都不符合题意...
Char conversion rates were greater at higher reaction temperatures (950 °C vs 850 °C) for all rests. At a high ratio of oxygen carrier to char ( = 26), char was fully converted by reacting with O2 released from CuO at both 950 °C and 850 °C in Ar. CuO was reduced to Cu2O ...