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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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In a heat engine of 1000 j of heat enters the system and the piston does 500 j of work what is the final internal energy of the system if the inital energy was 2000 j we have to do all of these down here 1)write the equation 2)list out your know variables 3)plug the numbers into the equations 4)solve 5)write your solution statemtn that includes inital energuy and final energuy added
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Consider the story you just read. all but one of the choices below indicate that something is living.
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2 H2O -> 2 H2 + O2
How many moles of H O are needed to produce 55.7 moles of H2?
If...
If...
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