Question

1. write the formula for aluminum nitrate. (0.5 points) *

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1. name the following ion: f- (0.5 points) *

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1. name the following ion: ca2+ (0.5 points) *

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Explanation:

• For question 4: Aluminum has a charge of \(+3\) (\(Al^{3+}\)) and nitrate is a polyatomic ion with a charge of \(-1\) (\(NO_{3}^{-}\)). To balance the charges, we need 3 nitrate ions for 1 aluminum ion.
• For question 5: The element \(F\) is fluorine. When it gains an electron (\(F^{-}\)), it is called a fluoride ion.
• For question 6: The element \(Ca\) is calcium. When it loses 2 electrons (\(Ca^{2+}\)), it is called a calcium ion.

Answer:

1. \(Al(NO_{3})_{3}\)
2. Fluoride ion
3. Calcium ion