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Lena [83]
3 years ago
10

What does 3 and 4 refer to in 3nh4

Biology
1 answer:
Luba_88 [7]3 years ago
4 0
3 and 4 represent the coefficients
Hope that Helps!!!
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A friend asks you how exocrine glands differ from endocrine glands. She knows that both form from invaginated epithelium. How do
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