Question

for each chemical formula write the chemical name in the blank as use below. when a cation has more than one oxidation state an asterisk is placed at the corner of the box. chemical names from chemical formulas: 1. nacl - sodium chloride; 2. srbr₂ - strontium bromide; 3. mgo - magnesium oxide; 4. na₃p; 5. al₂o₃; 6. li₂s; 7. be₃n₂; 8. ki; 9. ca₃n₂; 10. mgi₂ - magnesium iodide; 11. febr₂ - iron(ii) bromide; 12. fecl₃ - iron(iii) chloride; 13. cu₂o - copper(i) oxide; 14. cuo - copper(ii) oxide; 15. pbs - lead(ii) sulfide. for each chemical name write the chemical formula. chemical formulas from chemical names: 1. lithium oxide - li₂o; 2. beryllium phosphide - be₃p₂; 3. potassium chloride - kcl; 4. calcium phosphide - ca₃p₂; 5. magnesium bromide - mgbr₂; 6. sodium iodide - nai; 7. barium chloride - bacl₂; 8. magnesium sulfide - mgs; 9. sodium nitride - na₃n; 10. aluminum sulfide - al₂s₃; 11. lead(ii) fluoride - pbf₂; 12. lead(ii) phosphide - pb₃p₂; 13. copper(ii) fluoride - cuf₂; 14. copper(i) fluoride - cuf; 15. iron(ii) phosphide - fep

Explanation:

Step1: Identify chemical naming rules

For ionic compounds, name the metal first followed by the non - metal with an appropriate suffix (-ide for simple anions). For transition metals, use Roman numerals to indicate the oxidation state.

Step2: Name compounds in the first section

• $\text{Na}_3\text{P}$: Sodium phosphide. Sodium is a metal and phosphide is the anion.
• $\text{Al}_2\text{O}_3$: Aluminum oxide. Aluminum is the metal and oxide is the anion.
• $\text{Li}_2\text{S}$: Lithium sulfide. Lithium is the metal and sulfide is the anion.
• $\text{Be}_3\text{N}_2$: Beryllium nitride. Beryllium is the metal and nitride is the anion.
• $\text{KI}$: Potassium iodide. Potassium is the metal and iodide is the anion.
• $\text{Ca}_3\text{N}_2$: Calcium nitride. Calcium is the metal and nitride is the anion.

Step3: Correct formulas in the second section

• Barium phosphide should be $\text{Ba}_3\text{P}_2$ (barium has a +2 charge and phosphide has a - 3 charge, so we need 3 barium and 2 phosphide ions to balance the charges).
• Sodium nitride should be $\text{Na}_3\text{N}$ (sodium has a +1 charge and nitride has a -3 charge).
• Copper(II) fluoride is $\text{CuF}_2$ (copper has an oxidation state of +2 and fluoride has a -1 charge).

Answer:

Chemical Formula	Chemical Name
$\text{Al}_2\text{O}_3$	Aluminum oxide
$\text{Li}_2\text{S}$	Lithium sulfide
$\text{Be}_3\text{N}_2$	Beryllium nitride
$\text{KI}$	Potassium iodide
$\text{Ca}_3\text{N}_2$	Calcium nitride
Chemical Name	Correct Chemical Formula
Barium phosphide	$\text{Ba}_3\text{P}_2$
Sodium nitride	$\text{Na}_3\text{N}$
Copper(II) fluoride	$\text{CuF}_2$