21. Number of unit cells in 10 g NaCl
(1)
1.5
58.5
-X 1024
(2)
2.5
58.5
X1023
(3)
5.6
58.5
-X1020
(4)
5.6
58.5
*1021
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Answer:
im a 6th grader so i dont know
Explanation:
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