How do you know a chemical reaction has occurred?

u use cgltop which is da formula for da question

Explanation:

To tell if a chemical reaction has occurred look at its color change, temperature change, Precipitate formation, gas production, and light emission.

> b takes place in the gas phase in an isothermal tubular reactor. the feed is one mole of a per one mole of c, an inert. the entering temperature and pressure are 427°c and 10 atm, respectively. the gas constant r = 0.08206 atm · l/mol · k.