BaSO4(4在O的右下方)
这是一种白色沉淀,既不溶于水,也不溶于稀硝酸.
猜你喜欢
- 1已知x1,x2,x3,...,xn的平均数是x拔求x1+a,x2+a,x3+a,...,xn+a的平均数
- 2地球同步卫星为T,加速度大小为a1,地球半径为R,则地球同步卫星的速度v1与地球第一宇宙速度v2的比值为
- 3m的平方+m+1 求m的立方+2m的平方+2009的值(写过程)
- 4关于what will you do after graduation from college,do youhave any plans?的对话
- 5一只挂钟的时钟长5厘米,分针长8厘米,从上午6时到中午12时,分针尖端走了几厘米,时针"扫过"的面积是几平方厘
- 6This evening you need to take _____ (more than usual )care on the roads because it is very icy.
- 7The children enjoyed t____ in the park last Saturday.My sister made her d____ to study harder than last semester.空处应该填什么
- 8:Next.life.I.what.to.be.one.of.your.tooth.So.when.I.hurt.your.Suffer!
- 9你可以乘坐机场大巴或者坐出租车英语怎么写
- 10could you tell us yesterday?