 , 25.10.2021 23:30 vdkgknsdg9996

# What is the formula for the compound formed by Al3+ and F- ? Group of answer choices  Explanation:

The goal when forming compounds is to achieve a net charge of 0.

We are given aluminum with a charge of 3+  and nitrogen with a charge of 3-.

These charges are equal and opposite, so one of each will equal 0.

3+ (Al) + 3- (N) = 0

Therefore, we do not need any subscripts. List the metal's symbol (aluminum) then the nonmetal.

AlN

Th formula for the compound, which is aluminum nitride, is AlN. Al(NO₃)₃
Al(HCO₃)₃
Al₂(SO₃)₃
AlPO₄ NH₄CN,NH₄ClO₃,(NH₄)₂SO₃,NH₄H₂PO₄.Al(CN)₃,Al(ClO₃)₃,Al₃(SO₃)₃,Al(H₂PO₄)₃.

Explanation:

Cations (positive ions) and anions (negative ions) combine to form ionic compounds. The charge of each ion is stated as the superscript in its formula.

The final compounds should be neutral (not carrying charge.) For that to happen, the ions should combine at a ratio that allows their charges to balance.

By convention, in chemical formula of ionic compounds, cations are written before anions.

Example: Al³⁺ and SO₃²⁻

The charge on an Al³⁺ cation is +3. The charge on a SO₃²⁻ anion is -2.

Start by finding the least common multiple of the absolute value of the charges (drop the negative sign in front of the charge.) .

The number of Al³⁺ ions in a formula unit of this compound will be equal to .

Similarly, the number of SO₃²⁻ ions in a formula unit of this compound will be equal to .

If a polyatomic ion (an ion with more than one atoms in it) appears more than once in the formula, enclose it in brackets and write the number of its occurrence outside the bracket. .

Apply this rule to find the formula of other compounds. Additionally, keep in mind that if the charge on the cation and the anion is the same, each should occur only once in the formula.  ### Other questions on the subject: Chemistry Chemistry, 21.06.2019 22:30, britotellerialuis
Ibeg i need 20. a reaction produces 4.93 l of oxygen, but was supposed to produce 1 mol of oxygen. what is the percent yield? Chemistry, 22.06.2019 03:30, dfgt5620
Calculate the molar mass of aluminum oxide (al2o3). express your answer to four significant figures. Chemistry, 22.06.2019 15:00, kandi2565
Large helium-filled balloons are used to lift scientific equipment to high altitudes. what is the pressure inside such a balloon if it starts out at sea level with a temperature of 10.0ºc and rises to an altitude where its volume is twenty times the original volume and its temperature is – 50.0ºc ? Chemistry, 22.06.2019 20:30, anggar20
A40 kilogram skier starts at the top of a 12 meter high slope. at the bottom, she is travelling 10 meters per second. how much energy does she lose to friction
What is the formula for the compound formed by Al3+ and F- ? Group of answer choices...

### Questions in other subjects:     Mathematics, 31.01.2020 18:51     Questions on the website: 14459963