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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]
Answers: 1
một chất phóng xạ có chu kì bán hủy là 20 năm. Hỏi cần thời gian bao lâu để 25% và 75% lượng chất đó...
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