化学示例

$B r$

解题步骤 1

$B r$ is soluble because most bromides are soluble except $A g B r$ , $H g B r_{2}$ , $H g_{2} B r_{2}$ , and $P b B r_{2}$ .

$B r$ 可溶

$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$