What happens when iron reacts with oxygen and water? A. Combination reaction B. Decomposition reaction C. Displacement reaction D. Double displacement reaction 相关知识点: 试题来源: 解析 A。本题考查化学反应类型。铁与氧气和水反应生成铁锈,是多种物质生成一种物质的反应,属于化合反应。
Iron deficiency anemia develops slowly. In its earliest stage, the amount of stored iron in the body drops. Next, the bone marrow produces fewer red blood cells. In the last stage, the body's stores of iron are gone. When this happens, your body will make fewer red blood cells that ar...
A. They turn blue B. They disappear C. They become larger D. They turn yellow 相关知识点: 试题来源: 解析 B。解析:文中“As the reaction proceeds, we can observe several phenomena. The iron filings gradually disappear...”明确指出铁屑在反应中逐渐消失。反馈 收藏 ...
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(a) What happens when : (i) HCl reacts with finely powdered iron. ... 06:56 Free Ncert Solutions English Medium NCERT Solutions NCERT Solutions for Class 12 English Medium NCERT Solutions for Class 11 English Medium NCERT Solutions for Class 10 English Medium ...
What happens when your iron is dangerously low? In iron deficiency, low levels of hemoglobin mean the heart has to work extra hard to carry oxygen. This may lead toirregular heartbeatsor the feeling that your heart is beating abnormally fast ( 4 ). In extreme cases, it can lead to an ...
“You’ve grown.” “It happens,” Sebastian quipped, flashing her his usual lopsided grin. “Goodness,” she said with smile, “you’ll be a danger to the ladies soon.” Harry very nearly rolled his eyes. Sebastian had already made conquests of nearly every girl in the village near ...
【题目】What happens to your computers, MP3players and cellphones when they're broken oryou want a new one?Most people just throw them away. In 2014, people around the world produced 41.8 million tons of electronic waste(e-waste) and onlyrecycled 6.5 million tons, the United Nationssaid. ...
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