What is the temperature of 0.300 mole of neon in a 2.00 L vessel at 4.68 atm?

you should have gotten 380.02 degrees kelvin

Explanation:

you have to use the ideal gas law for this one, (PV=nRt). you know the pressure(4.68 atm), volume (2.00L), and mole count (0.300). the R value is the constant of 0.0821L*atm/mol*K

PV=NRT

4.68atm*2.00L=0.300mol*0.0821*T

9.36=0.02463*T

9.36/0.02463

T=380.024 degrees kelvin

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

i believe that it is a exoplanet