Chemistry, 02.12.2020 23:30, joooosshhhh
9. Birds today have bones with 10mg of Ca-50. A bird bone is found with only 1.25mg of Ca-50 in it. If the ½ life of Ca-50 is 4 yrs, how old is the bone?
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Nan element’s square on the periodic table, the number with the greatest numerical value represents the
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Chemistry, 22.06.2019 19:30, dorindaramirez0531
Which liquid (h2o, h2o + soap, or h2o + salt) has the strongest cohesion and adhesion? (need now plz)
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9. Birds today have bones with 10mg of Ca-50. A bird bone is found with only 1.25mg of Ca-50 in it....
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