The decomposition of N2O5(g) to NO2(g) and O2(g) obeys first-order kinetics. Assuming the form of the rate law is:

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

2b2t

explanation:

2b2t

air

in a tire you fill a tire with air

then a couple days later you check the air pressure in the tire

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