Avogadro's law relates the volume of a gas to the number of moles of gas when temperature and pressure are constant. According to this law, how
would the volume of a gas change if a reaction produced 3 moles of gas from
1 mole of gaseous reactants?

A. The volume would be nine times the original volume.

B. The volume would be one-third of the original volume.

C. The volume would be one-ninth of the original volume.

D. The volume would be three times the original volume.

може ли да зареждате повече информация, моля

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.