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.

Yes

To determine the ratio of aluminum ions to nitrate ions in the compound Al(NO3)3, we need to examine its chemical formula.

In the compound Al(NO3)3, there is one aluminum ion (Al3+) and three nitrate ions (NO3-). The subscript "3" in (NO3)3 indicates that there are three nitrate ions.

Therefore, we can conclude that the ratio of aluminum ions to nitrate ions in Al(NO3)3 is 1:3.

Hence, the correct answer is option (3) 1:3.

2:3