If 80.0 grams of l₂ O5 react with 28.0 grams of CO, what mass of l₂ can be produced? If 40.6 grams of l₂ are actually produced, what is the percent yield of l₂? Balanced equation: l₂ O5 + 5CO→ 5CO2 + l₂

answer: c. the experiment shows that the red substance experienced a chemical change.

explanation: chemical change is the change in which chemical composition of the substance changes. physical change is the change in which there is no change in chemical composition.

chemical changes are accompanied by following changes:

a) precipitate formation

b) energy is released or absorbed

c) formation of bubbles

d) change in color

as it is given that the red color has disappeared and there is production of gas, it means the red substance has undergone a chemical change.

e