This is an equilibrium reaction, where it can form carbonic acid.

这是一个平衡反应，它可以形成碳酸。

It can be formed in the gaseous state by an equilibrium reaction between hydrogen gas and fluorine gas.

它可以通过氢气和氟气之间的平衡反应以气态形成。

Today you've learned some mathematical tools to help us make more efficient use of equilibrium reactions in real life.

今天，您学习了一些数学工具， 可以帮助我们在现实生活中更有效地利用平衡反应。