一气瓶中有0.07米3的气体,其压力为0.3兆帕,当温度不变时,若容积减少到0.01立方米时,其压力是多少?
参考答案:
当容积减少到0.01立方米时,其压力是2.1兆帕。
填空
1. —What's your n_______?
—My name is Bob.
2. Five plus three is e________.
3. John Brown's f________ name is Brown.
4. His phone n________ is 562-4328.
5. —Who is that girl?
—H________ name is Linda.
主族元素在周期表中的位置,取决于元素原子的
A.相对原子质量和核电荷数
B.电子层数和中子数
C.电子层数和最外层电子数
D.金属性和非金属性的强弱