Please help with this quiz. A nitrogen-filled balloon has a pressure of 610 torr at 28°C. What would the pressure

be at 38°C if the volume remained the same?

827.85 torr

Explanation:

Given that,

Pressure, P₁ = 610 torr

Temperature, T₁ = 28°C

We need to find the new pressure if the new temperature is 38°C and if the volume remained the same. Using Gay-lussac's law,

We need to find P₂.

So, the new pressure is 827.85 torr.

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