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Asample of radium-226 will decay 1/4 of its original amount after 3200years. what is the half-life of radium-226?
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How heavy is thanos? a) 3000 lbs b) all of it c) the price of tea in china d) heavy enough
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The tendency of water molecules to stick together is referred to as a) adhesion b) polarity c) cohesion d) transpiration e) evaporation
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Ik i keep asking for dis but im f∪king bored lol so who wanna add...
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