How many grams of cif3 form when .204 moles of f2 react with excess cl2?
the answer must be sold with dimensional analysis.

The reaction equation:
2Cl₂ + 3F₂ → 2ClF₃

Moles of F₂ = 0.204
Moles of ClF₃ = 2/3 x 0.204
= 0.136 mole

Mass = moles x Mr
= 0.136 x (35.5 + 19 x 3)
= 12.58 grams of ClF₃ will be formed.

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.