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Chemical Nomenclature and Ionic Compound Formation Quiz

#1

What is the chemical formula for sodium chloride?

NaCl
Explanation

Sodium chloride is composed of sodium ions (Na+) and chloride ions (Cl-), forming a stable ionic compound.

#2

Which of the following is an example of an ionic compound?

NaCl
Explanation

NaCl (sodium chloride) is a classic example of an ionic compound formed by the electrostatic attraction between sodium (Na+) and chloride (Cl-) ions.

#3

What is the formula for magnesium nitrate?

Mg(NO₃)₂
Explanation

Magnesium nitrate (Mg(NO₃)₂) is a crystalline solid, composed of one magnesium ion (Mg²⁺) and two nitrate ions (NO₃⁻).

#4

Which of the following represents a polyatomic ion?

Nitrate (NO₃)
Explanation

Nitrate (NO₃⁻) is a polyatomic ion, composed of one nitrogen atom and three oxygen atoms, carrying a 1- charge.

#5

What is the formula for copper(II) sulfate?

CuSO₄
Explanation

Copper(II) sulfate (CuSO₄) is a chemical compound used in agriculture and as a fungicide.

#6

What is the name of the compound with the formula CaCO₃?

Calcium carbonate
Explanation

Calcium carbonate (CaCO₃) is a chemical compound commonly found in limestone, chalk, and marble.

#7

Which of the following ions has a 2- charge?

Sulfate ion
Explanation

The sulfate ion (SO₄²⁻) carries a 2- charge due to its composition of sulfur and oxygen atoms.

#8

What is the name of the compound with the formula FeCl₃?

Iron(III) chloride
Explanation

Iron(III) chloride (FeCl₃) is an inorganic compound used in water treatment, dyeing, and etching.

#9

Which of the following is a correct name for the compound HCl?

Hydrochloric acid
Explanation

Hydrochloric acid (HCl) is a strong acid commonly used in industrial and laboratory settings.

#10

What is the name of the compound with the formula Pb(NO₃)₂?

Lead nitrate
Explanation

Lead nitrate (Pb(NO₃)₂) is a toxic inorganic compound used in various applications such as pyrotechnics and in the manufacture of matches.

#11

What is the chemical formula for ammonium sulfate?

(NH₄)₂SO₄
Explanation

Ammonium sulfate ((NH₄)₂SO₄) is an inorganic compound commonly used as a fertilizer and in various industrial applications.

#12

What is the chemical formula for potassium permanganate?

KMnO₄
Explanation

Potassium permanganate (KMnO₄) is a powerful oxidizing agent and disinfectant.

#13

What is the chemical formula for iron(II) chloride?

FeCl₂
Explanation

Iron(II) chloride (FeCl₂) is an inorganic compound used in water purification and as a precursor to other iron compounds.

#14

What is the chemical formula for aluminum oxide?

Al₂O₃
Explanation

Aluminum oxide (Al₂O₃) is a compound used as an abrasive, in ceramics, and as a refractory material.

#15

What is the chemical formula for potassium iodide?

KI
Explanation

Potassium iodide (KI) is a salt used in medicine and photography.

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