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SVETLANKA909090 [29]
2 years ago
9

Describe the experiments conducted by Thomson and Rutherford, and how the observations and evidence from each of these experimen

ts led to changes in the model of the atom.
Chemistry
1 answer:
nasty-shy [4]2 years ago
4 0
                                       Thomson
In  his  model discovered  electron  which  has  negative  charge whereby  this   electrons  were  positioned  throught  the  atom  surrounded  by  a  soup of  positive  balance   the  negative  charge  of  electron
                      Rutherford
  In  his  model  concluded  that  atom  is  made  up  of  central  charge surrounded   by  orbiting  electrons.
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Answer: 15.3 grams C

Explanation:  1 mole is 6.02x10^23 atoms.  We can find the moles of C in 7.675 x 10^23 atoms of C by dividing:

(7.675 x 10^23 atoms C)/(6.02x10^23 atoms C/mole) = 1.275 moles C

The molar mass of carbon is 12g/mole.  So the mass of 7.675 x 10^23 atoms is (1.275 moles C)*(12 g/mole C) = 15.3 grams.

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How are endothermic and exothermic reactions the same how are they different?
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Endothermic reactions and Exothermic reaction are never the same.

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