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Veseljchak [2.6K]
3 years ago
8

CAN SOMEONE HELP ME WITH ALL MY SCIENCE WORK I HAVE A TON I WOULD REALLY APPRECIATE IF SOMEONE CAN DO ALL THEM FOR ME ,IM IN 8TH

GRADE ALL I NEED TO DO IS FINISH MOST OF MY OTHER SUBJECTS I DONT WANT SCIENCE TO BOTHER ME
Chemistry
1 answer:
mr Goodwill [35]3 years ago
4 0

I'm in 9th grade, how can i help you?

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3 years ago
How many atoms of gold are in gold nugget with a mass of 4.25 g
Feliz [49]
Number of Atoms in Gold for given mass can be calculated using following formula,

              # of Moles  =  Number of Atoms / 6.022 × 10²³
Or,
             Number of Atoms  =  Moles × 6.022 × 10²³     ------- (1)    

Calculating Moles,
As,
                              Moles  =  Mass / M.mass
So,
                              Moles  =  4.25 g / 196.96 g/mol

                              Moles  =  0.0215

Putting value of mole in eq.1,

             Number of Atoms  =  0.0215 × 6.022 × 10²³

             Number of Atoms  =  1.299 × 10²²

Result:
            4.25 g 
of Gold Nugget contains 1.299 × 10²² Atoms.
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3 years ago
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An electron cloud be compared with a spinning airplane propeller in the manner that in both exact location within either cannot be determined at any given moment in time.

In both electron cloud as well as spinning airplane propeller, there is a probability of finding either but exact location can not be determined.


6 0
4 years ago
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Solutions and colloids which contain similarly sized particles can be effectively separated using paper filtration.
mojhsa [17]
False cause there particles arent large enough to be filtered
6 0
3 years ago
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