Chemistry, 04.12.2019 04:31 phelanpearson3995
Aradioactive substance has a half-life of 10 years. if you start with 30 grams of the substance, how much will remain after 30 years.
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How many moles are equivalent to 55.5g of nano3
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Alarge marble is dropped in a graduated cylinder with 35ml of water in it. the water level increases to 49ml. what is the volume of the marble
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Chemistry, 22.06.2019 04:00, kichensides
Asample of aluminum foil contains 8.60 × 1023 atoms. what is the mass of the foil?
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Aradioactive substance has a half-life of 10 years. if you start with 30 grams of the substance, how...
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