Febr3 : what is the formula of cation or anion for this ionic formula?

The ionic compound Fe Br3 is electrically neutral.

The oxydation state of Br is -1, which gives a total of 3 negative charges, when you multiply 3 ions times -1 charge.

Then the oxydation state of Fe has to be 3+. 

Then the compound is formed by two charged particles, Fe+3 which is positively charged ion or cation, and Br - which is negatively charged or anion.

The algebraic sum of the charges of the ions must result 0 (neutral state).

The formulas of the ions is:



and





 

Evaporation: this is when warmth from the sun causes water from oceans, lakes, streams, ice and soils to rise into the air and turn into water vapour (gas). water vapour droplets join together to make clouds! condensation: this is when water vapour in the air cools down and turns back into liquid water.

Forgot the question hahaha