I have added 15 L of air to a balloon at sea level (1.0 atm). If I take the
balloon with me to Denver, where the air pressure is 0.85 atm, what will
the new volume of the balloon be?

17.65 L

Explanation:

- Use Boyle's Law

- Rearrange formula (V2 = V1P1/P2)

- Put in the values and solve

- Hope this helped! Let me know if you need a further explanation.

Hello!

I have added 15 L of air to a balloon at sea level (1.0 atm). If I take the  balloon with me to Denver, where the air pressure is 0.85 atm, what will  the new volume of the balloon be?

V1 (initial volume) = 15 L

P1 (initial pressure) = 1.0 atm

P2 (final pressure) = 0.85 atm

V2 (final volume) = ? (in ml)

_______________________  

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

this is chemical change (chemical reaction), because two new substances are formed (metalig liquid and gas), the atoms are rearranged and the reaction is followed by an energy change.

this is example of chemical decomposition.

chemical decomposition (analysis) is the separation of a single chemical compound into its two or more elemental parts or to simpler compounds.  

chemical decomposition is opposite of chemical synthesis.

idk i’m struggling too