lizziefayx3498

22.08.2019 • 

Chemistry

Which statement about nuclear binding energy is true?
it is equal to about two tons of tnt per mole of atoms.
it must be overcome to break a nucleus apart into protons and neutrons.
it comes from using some of the mass of the electrons as energy.
it is the attraction of the positive nucleus to negative electrons.

Ответ:

youngg52

31.12.2021

Chemistry

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It must be overcome to break a nucleus apart into protons and neutrons

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Ответ:

mota78

09.12.2022

Chemistry

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142.2 mol H2O

Explanation:

The chemical reaction is

4H2 + CO2 ---> CH4 + 2H2O

71.1 mol CO2 × (2 mol H2O / 1 mol CO2)

= 142.2 mol CO2

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