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itsyagirlgona21
14.03.2020 •
Chemistry
The atomic mass unit is defined as 1/12 of the mass of a carbon 12 atom, and 1 atomic mass unit has a mass of 1.6605 x 10⁻²⁴ g. It follows that one carbon atom has a mass of 12 x 1.6605 x 10⁻²⁴ and thus the number of carbon atoms in present in 12 g of carbon equal 12 / (12 x 1.6605 x 10⁻²⁴) which equals 6.02 x 10²³.True / False.
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Ответ:
Abiotic resources are usually obtained from the lithosphere, atmosphere, and hydrosphere. Examples of abiotic factors are water, air, soil, sunlight, and minerals. Biotic factors are living or once-living organisms in the ecosystem. These are obtained from the biosphere and are capable of reproduction.
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