1. [9 pts.] A cylinder with a movable piston contains 218 mL of nitrogen gas at a pressure of
1.32 atm and a temperature of 298 K. The piston moves such that the final pressure of gas is
1.55 atm and the final temperature is 335 K. Calculate the final volume in liters.

how about u try it first

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

let that person have a turn to speak : )

i think it's c. if you look search electronic symbol on google and then click on wiki it shows you a