A:该硫酸的物质的量浓度为9.2 mol/L
B:1 mol Zn与足量该硫酸反应产生2 g氢气
C:配制200 mL 4.6 mol/L的稀硫酸需取该硫酸50 mL
D:该硫酸与等质量的水混合后所得溶液的浓度大于9.2 mol/L
As we know, his father is a very famous scientist in physics. But what you don't know is that he _______ as a farmer for five years.
已知下列方程:(1)2x+3=4x;(2)7x=9;(3)4x﹣2=3x+1;(4)x2+6x+9=0;(5)x=3;(6)x+y=8.其中是一元一次方程的个数是( )
Miss Yang plays basketball ________ swims on the weekend.