What did Rutherford's gold-foil experiment help him conclude?

Chemistry

2 answers:

Svetach [21]3 years ago

8 0

C. mass is protons and neutrons. Both are in the nucleus

GREYUIT [131]3 years ago

8 0

Answer:

That experiment led not only him but scientists in general to conclude and to prove that the atom's nucleous is not solid, proving Thomson's Plum Pudding model wrong and contradicting that previous hypothesis since the beam of positively charged particles pierced and ran through the foil, thus the volume of the atom is mostly unoccupied, setting up the fundamentals of what until these days is the concept of an atom. The most suitable answer would be then <em>C</em>.

Explanation:

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If a beaker of water and a beaker of acetic acid are at the same elevated temperature, which will cool more quickly to room temp

4vir4ik [10]

The beaker of acetic acid will cool more quickly.

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4 0

3 years ago

In the following overall chemical reaction, aluminum displaces chromium from chromium(III) oxide and forms aluminum oxide.

mafiozo [28]

Answer:

Change in enthalpy for the reaction is -536 kJ

Explanation:

Overall chemical reaction can be represented a summation of two given elementary steps with slight modification.
Take reaction (1a) and divide stoichiometric coefficients by 2
Take reverse reaction (2a) and divide stoichiometric coefficient by 2
Then add these two modified elementary steps to get overall chemical reaction
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