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myrzilka [38]
3 years ago
9

FASSST!!!physical science!!!!!

Biology
1 answer:
jeka943 years ago
7 0

Answer

#21

2 for NaF

1 For Br2

2 For NaBr

1 for F2

#22

1 for P4

3 for O2

2 for P2O3

Explanation:

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