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Arlecino [84]
3 years ago
12

After 1911, most scientists accepted the theory that the nucleus of an atom was very dense and very small and had a positive cha

rge. What led scientist to accept this theory?
A) Dalton’s theory of the atom was over 100 years old

B) Scientists before 1911 used the scientific method of inquiry improperly

C) A new model proved that the quantum theory of the atom was inaccurate

D) Rutherford did an experiment firing alpha particles at a thin piece of gold foil
Chemistry
1 answer:
Scorpion4ik [409]3 years ago
4 0

Answer:

I believe it is D

Explanation:

since Rutherford's explanation, when he made it in 1911, was that scattering was caused by a hard, dense court to centre of the Adam, which is the nucleus and he used Alpha particles to observe the scattered backwards from a gold foil

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Answer:

Percentage composition = 14.583%

Explanation:

In chemistry, the emprical formular of a compound is the simplest formular a compound can have. It shows the simplest ratio in which the elements are combined in the compound.

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Percentage composition of Nitrogen = (Mass of Nitrogen /  Mass of compound) * 100

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larisa86 [58]

The balanced reaction is:

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 <span>We are given the amount of reactants to be used for the reaction. This will be the starting point of our calculation.</span>

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From the balanced reaction, we have a 4:3 ratio of the reactants. The limiting reactant would be oxygen. We will use the amount for oxygen for further calculations.

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8 0
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