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SAT, 22.06.2019 10:00
What happens to the composition of an atom to cause it to become positively or negatively charged?
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SAT, 27.06.2019 07:00
28. the new systematic nomenclature was so ( that many chemists preferred to ( the older trivial names that were at least shorter. at least, that is the ostensible reason. actually, tradition seems to carry more weight than ( with some scientists.
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SAT, 29.06.2019 15:30
How do refracting telescopes magnify a far away image? a. by directing light beams to meet at a focal point b. by absorbing light beams’ wavelengths c. by forcing light beams to change direction d. by measuring light beams’ velocity
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(2x + 6) + (x² + 2x + 1) = ? *...
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