pandyjunk3981
07.11.2020 •
Chemistry
Which of the following statements is not true statement?
(a
An atom contains a large nucleus that is composed of protons, and neutrons.
b
Each element has a specific and unique atomic number.
c
Several elements make up an atom.
d
Isotopes of an element have the same number of protons and different number of neutrons.
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Ответ:
Each component in a mixture contributes a fraction to the total number of moles in the mixture. This fraction is called the _mole_ fraction of the component. In a mixture of gases, this fraction is proportional to the _mole_ pressure for each gas present.