A12 oz can of soda is left in a car on a hot day. in the morning the soda temperature was 60of with a gauge pressure of 40 psi. what will the gauge pressure be when the soda reaches 90of (or 363 kelvin)?

Using the Gay Lussac's Pressure Temperature Law :
P1/T1 = P2/T2

Substituting the values: 
Let x be the new gauge pressure. 
40/60 = x/90
x = 60 psi.
The gauge pressure will be 60 psi when the soda reaches 90oF.

The answer is water molecules are split.cellular respiration and photosynthesis are complement  reactions to each other. these are reverse reactions. in cellular respiration glucose and oxygen yield water and carbon dioxide. so, when respiration begins,  glucose molecules are split. in the opposite reaction - in photosynthesis, carbon dioxide and water yield glucose and oxygen. thus,  when respiration begins, water molecules are split.