You are in a laboratory creating a new chocolate bar. you want to create the sweetest chocolate bar by maximizing the sugar concentration. you are doing this by adding the sugar to a chocolate mixture. which would allow you to dissolve more sugar?

The correct answer would be heating the mixture.

The solubility of a solute in a particular solvent depends upon the temperature of the solution.

In most cases, the solubility of the mixture increases with increase in temperature of the mixture.

Higher temperature increases the kinetic energy of the solvent due to which it becomes more efficient in breaking apart the particles of the solutes.

It increases the solubility of the solute in a particular solvent.

Thus, more sugar can be added by heating the mixture.

it can be observed without changing the identity of the object.

it depends on what substance you're talking about as well as many other factors. in quantum mechanics, the observation of particles affects the observers ability to measure certain properties. for example: you can know the velocity of a particle, but you can't know it's position; or you can know it's position, but not it's velocity. it's like trying to find out where a grain of sand is by throwing other grains of sand at it. once you find out where it is, it's been moved. it's also like trying to find an answer to the question of whether or not a tree falling in a forest makes a sound if nobody is there to hear it. paradoxically, the only way to find out is to be there and hear it.