20 pointsmy brother jack found a piece of oak while hiking in an arizonan canyon. my brother jason was taking a geology class and he thought it might be from ancient times so they ran some experiments and found that the amount of carbon-14 (14c) was approximately 1/64 of the current atmospheric 14c levels. determine approximately how many years ago the tree was chopped down to be used for the firewood. 14c has a t1/2 of 5,750 years use the half life equation
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Chemistry, 21.06.2019 20:30, jbarbie3
12. complete each of the following word equations for synthesis reactions. a. sodium + oxygen -> b. magnesium + fluorine -> 13. complete and balance the equations for the decomposition reactions. a. hgo -> [with the triangle heat symbol above the arrow] b. h2o(l) -> [with "electricity" written above the arrow]
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Chemistry, 22.06.2019 15:10, strodersage
Which statement describes the phase change that occurs when dry ice is placed in an open container at room temperature?
Answers: 1
Chemistry, 23.06.2019 00:30, DragonLovely
•hydration •dissociation •dissolving which one goes to which
Answers: 1
20 pointsmy brother jack found a piece of oak while hiking in an arizonan canyon. my brother jason w...
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