Determine the formula unit and name for the compound formed when each pair of ions interacts. In the formula, capitalization and subscripts are graded. Spelling counts. Formula Name a) Al3 and CN b)Mg" and SO42- c) Lt and C2H3O2-1 □ d) NH,' and Br-

Complete question:

Determine the formula unit and name for the compound formed when each pair of ions interacts. In the formula, capitalization and subscripts are graded. Spelling counts. Formula Name a) Al3+ and CN- b)Mg²+ and SO4²- c) Li+ and (C2H3O2)-1  d) NH4+ and Br-

a) Al3+ and CN-

Al(CN)3

Aluminium Cyanide

b) Mg²+ and SO4²-

MgSO4

Magnesium Sulfate

c) Li+ and (C2H3O2)-1

C2H3LiO2.

lithium acetate

d) NH4+ and Br-

NH4Br.

Ammonium bromide.

Explanation:

a) Al3+ and CN-

The formula unit can be gotten when you cross multiply the charges .

Al(CN)3 . The combination is between a cation, aluminium ion and an anion, cyanide ion. The compound is called Aluminium Cyanide.

b) Mg²+ and SO4²-

The charges are 2+ and 2- . Divide both sides by 2 , you will get 1.

cross multiply the +1 and -1 charges , you will get

MgSO4. The combination is between a magnesium ion (cation)  and a sulfate ion. The compound is called Magnesium Sulfate.

c) Li+ and (C2H3O2)-1

The charges are cross multiplied since they have +1 and -1 charges,

C2H3LiO2. It is a combination of lithium ion and acetate ion. The compound name is lithium acetate.

d) NH4+ and Br-

The charges are +1 and -1. so we cross multiply to get  the formula unit as

NH4Br. It is a combination of ammonium ion and bromine ion. The name of the compound is Ammonium bromide.

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