How can you make a chemical change to paper

-- burn it   (it combines with Oxygen and makes new substances)

-- chew it   (it combines with your saliva and makes new substances)

-- swallow it   (your stomach juices dissolve it and make new substances)

I think that's as far as I should go with it.

the temperature and the pressure affect solubility. temperature affects by changing the properties of the solvent. the increase in pressure increases solubility, the decrease in pressure decreases solubility.