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posted by Jazmin on Monday, October 25, 2010 at 1:28am.
In a sample of solid Al(NO3)3, the ratio of aluminum ions to nitrate ions is (1) 1:1 (2) 1:2 (3) 1:3 (4) 1:6
The formula tells you it is 1 to 3. We don't write 1s but we do all other numbers.
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