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Author Question: Most of the oxygen in sea water is composed of 8 protons and 8 neutrons in its nucleus, giving it an ... (Read 118 times)

nautica902

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on: Jul 13, 2018
Most of the oxygen in sea water is composed of 8 protons and 8 neutrons in its nucleus, giving it an atomic weight of ___________________ _.
  Fill in the blank with correct word.

Question 2

The ___________________ _ ratios of calcium carbonate shells have provided information about the sequence of glacier advances.
  Fill in the blank with correct word.


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vish98

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Reply #1 on: Jul 13, 2018
Answer to Question 1

ANSWER: 16
sixteen

Answer to Question 2

ANSWER: oxygen-isotope
oxygen isotope
oxygen isotopic


nautica902

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Reply 2 on: Jul 13, 2018
Gracias!

kalskdjl1212

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Reply 3 on: Yesterday
Excellent

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