If a radioactive material has a 10 year half-life, how much of a 100 g sample will be left after 30 years?
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Option E, 2, 7, 4, 6. The type of reaction is combustion reaction, as oxygen is being reacted with C2H6 to form new compounds.
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-T.B.
Let me know if you need any further explanation :))
-T.B.