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Author Question: If a tree dies and the trunk remains undisturbed for 13989 years, what percentage of original is ... (Read 92 times)

xclash

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on: Mar 21, 2021

Question 1

Identify the missing particle in the following nuclear equation:
              Al + __________ → Na + α

◦ n
◦ n
◦ e
◦ e
◦ 2 n

Question 2

If a tree dies and the trunk remains undisturbed for 13989 years, what percentage of original is still present? (half-life of = 5730 years)

◦ 81.6%
◦ 18.4%
◦ 36.8%
◦ 27.6%
◦ 2.44%
Chemistry: An Atoms First Approach ¦ Zumdahl, DeCoste ¦ 3rd Edition
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Marked as best answer by xclash on Mar 21, 2021

chevyboi1976

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Reply #1 on: Mar 21, 2021
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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xclash

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Reply 2 on: Mar 21, 2021
Excellent

mochi09

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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