cofran

25.10.2019 • 

Chemistry

The work function of magnesium metal is 353 kj/mol, which corresponds to light with a wavelength of 339 nm. which of the following will cause a largest number of electrons to be ejected from magnesium?

high-amplitude wave with a wavelength of 300 nm.
high-amplitude wave with a wavelength of 350 nm.
low-amplitude wave with a wavelength of 300 nm.
low-amplitude wave with a wavelength of 350 nm.

Ответ:

norahfrost

08.01.2022

Chemistry

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350 nm because the magnesium reacts very aggressively toward these kind of situations.

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Ответ:

sarah8479

29.06.2022

Chemistry

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(The composition of a bituminous coal by percentage is roughly: carbon [C], 75–90; hydrogen [H], 4.5–5.5; nitrogen [N], 1–1.5; sulfur [S], 1–2; oxygen[O], 5–20; ash, 2–10; and moisture, 1–10.)

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