化学例

$C r S i$

ステップ 1

$C r S i$ is insoluble because chromates are frequently insoluble. Examples: $P b C r O_{4}$ and $B a C r O_{4}$ .

$C r S i$ は不溶性です

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