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16.01.2020 •
Chemistry
1. the greek philosopher democritus coined what word for a tiny piece of matter that cannot be divided?
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Ответ:
Ответ:
Studying Atoms Quick Check
The Greek philosopher Democritus coined what word for a tiny piece of matter that cannot be divided? Atom
According to John Dalton's observations, when elements combine in a compound,? The ratio of their masses is always the same.
J.J. Thomson's experiments provided evidence that an atom? contains negatively charged particles.
Which statement best describes Rutherford's model of the atom? It is like a huge stadium with a positively charged marble at the center.
Explanation:
Ответ:
With h and plancs constant and c as the speed of light
E = h nu
E = h (c/lambda)
E = h (c/4966.39*10^-9m)
Then you multiply that by 6.02*10^23 to find the j/mol
Then you divide by 1000 for kj