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MatroZZZ [7]
3 years ago
14

Please help with questions 7-12

Chemistry
1 answer:
Rufina [12.5K]3 years ago
3 0

Answer:

negitive 5 or -5

Explanation

usally 12-7 = 5 but 7 is first so it you turn 5 to negitive 5

or -5

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