The contents of two petri dishes are described in the table. Contents of Petri Dishes
Petri Dish
Contents
Final State of the Substance
C Jelemental sulfur
fine yellow colored powder
D
compound sodium chloride white colored cubic crystals
Based on the final state, which statement is true about the substances in the petri dishes? (1 point)
a
The final substances in both petri dishes are mixtures.
The final substances in both petri dishes are pure substances.
The final substance in Petri dish C is a pure substance and in Petri dish D is a mixture.
The final substance in Petri dish C is a mixture and in Petri dish D is a pure substance.

i dont know the answe

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.