WILL VOTE BEST & GIVE 15 POINTS When
you
walked in to Mrs. Bateast's lab today, you noticed that your partner group had a 0.05432
ml mixture sample of sand and water in a beaker. When your group began the lab to separate the
mixture in to different weight boats, you thought it would be very difficult to remove the sand. As a
result, you added another 5.2ml of water to assist with removing it.

Determine The number of significant figures in your original sample.

oxygen, selenium, tellurium, and polonium.

they're all from the same group as sulfur (group 16).

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.