1st,the potassium permanganate and the strong sulfuric acid responded produces the oxidized ability greatly strengthened brown oily liquid heptoxide two manganese.As soon as it bumps into the ethyl alcohol immediately to have the intense oxidation - electronation reaction,emits the quantity of heat enables the ethyl alcohol to achieve the kindling point burns.2nd,when the blue vitriol powder,the magnesium powder and return to original state the powdered iron falls when the flame,because the blue vitriol cupric ion causes the flame to present the green,the magnesium powder and the powdered iron the volume is very small,is very big with the air contact face,is been easily scalding hot by the flame,therefore can with the air in oxygen chemical combination production magnesia and the loadstone.The response produces the heat causes the loadstone to blush,enables the magnesia to achieve the incandescent condition,therefore then appears the tiny thioindigo red and the dazzling white light.Because the metal powder is not the identical time falls on the flame burns,in addition when oxidation is flushed by the hot air stream,therefore the thioindigo red and the white light four shoot,as soon as dodges resembles the star light to fly
最新问答: 探究下表中的奥秘,并完成填空. 一元二次方程 两个根 二次三项式因式分解 若f(x)=2x+3,g(x+2)=f(x),则g(x)的表达式为( ) 赠人玫瑰 手留余香 英语作文 两个数的最小公倍数一定是它们最大公因数的倍数.______.(判断对错) (1)向盛有水的烧杯中加入少量品红,静置一段时间后,溶液逐渐变成红色,此实验主要说明分子的性质是______.将所得溶液 实现下列反应需加入氧化剂的是( ) 有关乙醛所有方程式越多越好 英语翻译我觉得两个都对,老师们你们觉得到底哪个对呢? 当我想你的时候 你在哪里 用英语怎么说 贴地表面卫星的速度和距离地球有一定高度的卫星的运行速度哪个大? “人不是因为美丽而可爱,而是因为可爱而美丽.”列夫·托尔斯泰的这句话说明 两个黄鹂鸣翠柳一行白鹭上青天这首诗写出了一幅美丽的什么的图画 棱柱与圆柱的相同点和不同点 求 一篇高一开学的英语周记,最好能有中文翻译.不限主题.大家帮帮忙,急需 请问硫酸钙理论上含硫多少? 科学家研究发现“白蛾周氏啮小蜂”,能利用产卵器刺透美国白蛾坚硬的蛹表皮,将卵产在美国白蛾的蛹内,使美国白蛾死亡,种群数量 在数轴上表示出-根号7的位置, 1.直角三角型的一条直角边比另一条直角边长2,斜边为5/2根号10,求两条直角边的长(用一元二次方程解应用题) 6位2进制数,连续4个1的排法有多少种? 求小说里经常要用到的词语我想写小说,所以想求一些写小说要用到的词语或句子