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Chemistry, 22.06.2019 14:40
Pastoral farming is best described as a. a method of raising livestock and moving herds b. an african method of agriculture c. a method of cultivating crops on poor soils d. a common method of desert farming select the best answer from the choices provided a b c d
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Chemistry, 22.06.2019 23:00
What is the energy in joules of a mole of photons associated with visible light of wavelength 486 nm?
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If a particle has z = 25 and 23 electrons, what is its charge?
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Chemistry, 23.06.2019 12:50
Complete the paragraph to describe the characteristics of a borane molecule (bh3). the lewis structure and table of electronegativities are given. the bond polarities in bh3 are , the molecular shape is , and the molecule is .
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At what temperature the density of air 14.5 become equal to that of hydrogen(1) at 0 degree Celsius...
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