Mastering Polyatomic Ions: Chemical Formulas Quiz

1. What is the chemical formula for Ammonium?

(NH3)2

(NH4)-1

(NH3)3

(NH4)+1

Ammonium has a positive charge of +1, which is denoted by the +1 in the chemical formula (NH4)+1. None of the incorrect answers represent the correct chemical formula for Ammonium.

Explanation

Ammonium has a positive charge of +1, which is denoted by the +1 in the chemical formula (NH4)+1. None of the incorrect answers represent the correct chemical formula for Ammonium.

2. What is the chemical formula for Phosphate?

(PO4)-2

(PO4)-4

(PO4)2

(PO4)-3

Phosphate is represented by the chemical formula (PO4)-3, indicating the presence of one phosphate ion with a charge of -3.

Explanation

Phosphate is represented by the chemical formula (PO4)-3, indicating the presence of one phosphate ion with a charge of -3.

3. What is the chemical formula for phosphite?

H2O2

NH3

(PO3)-3

CO2

Phosphite is an ion with a charge of -3 and consists of one phosphorus atom bonded to three oxygen atoms. Therefore, the correct chemical formula is (PO3)-3.

Explanation

Phosphite is an ion with a charge of -3 and consists of one phosphorus atom bonded to three oxygen atoms. Therefore, the correct chemical formula is (PO3)-3.

4. What is the chemical formula for carbonate?

(CO3)-2

(CH3)2CO

CaCO3

CO2

Carbonate is the polyatomic anion with the formula (CO3)-2, consisting of one carbon atom and three oxygen atoms. It is important in many areas of chemistry and is commonly found in minerals and salts.

Explanation

Carbonate is the polyatomic anion with the formula (CO3)-2, consisting of one carbon atom and three oxygen atoms. It is important in many areas of chemistry and is commonly found in minerals and salts.

5. What is the chemical formula for Sulfate?

(SO2)-2

(SO4)-2

(SO4)2

(SO3)-2

Sulfate ion is a polyatomic ion with the chemical formula (SO4)-2, consisting of one sulfur atom and four oxygen atoms. It carries a charge of -2.

Explanation

Sulfate ion is a polyatomic ion with the chemical formula (SO4)-2, consisting of one sulfur atom and four oxygen atoms. It carries a charge of -2.

6. What is the chemical formula for sulfite?

(SO2)

(S2O3)-2

(SO4)-2

(SO3)-2

Sulfite is a chemical ion composed of one sulfur atom and three oxygen atoms with a charge of -2, represented as (SO3)-2. The other options provided are incorrect chemical formulas for different compounds.

Explanation

Sulfite is a chemical ion composed of one sulfur atom and three oxygen atoms with a charge of -2, represented as (SO3)-2. The other options provided are incorrect chemical formulas for different compounds.

7. What is the chemical formula for Chlorite?

(HClO)

(ClO2)-1

(ClO3)-1

(CaCl2)

Chlorite is a compound with the chemical formula (ClO2)-1. The incorrect answers provided do not represent the correct chemical formula for Chlorite.

Explanation

Chlorite is a compound with the chemical formula (ClO2)-1. The incorrect answers provided do not represent the correct chemical formula for Chlorite.

8. What is the chemical formula for hypochlorite?

(ClO)-1

ClO2

Cl2O

ClO3

Hypochlorite is an anion with the chemical formula (ClO)-1, which consists of one chlorine atom bonded to one oxygen atom with a -1 charge. The other options provided are different compounds with distinct chemical formulas.

Explanation

Hypochlorite is an anion with the chemical formula (ClO)-1, which consists of one chlorine atom bonded to one oxygen atom with a -1 charge. The other options provided are different compounds with distinct chemical formulas.

9. What is the chemical formula for nitrate?

NO2

HNO3

(NO3)-1

N2O5

Nitrate is a polyatomic ion composed of one nitrogen atom and three oxygen atoms with a charge of -1. The correct chemical formula for nitrate is (NO3)-1.

Explanation

Nitrate is a polyatomic ion composed of one nitrogen atom and three oxygen atoms with a charge of -1. The correct chemical formula for nitrate is (NO3)-1.

10. What is the chemical formula for Nitrite?

H2O

(NO3)-1

(NO2)-1

NH3

Nitrite is represented by the chemical formula (NO2)-1, which shows its composition of one nitrogen atom and two oxygen atoms. The incorrect answers do not reflect the correct composition of nitrite.

Explanation

Nitrite is represented by the chemical formula (NO2)-1, which shows its composition of one nitrogen atom and two oxygen atoms. The incorrect answers do not reflect the correct composition of nitrite.

11. What is the chemical formula for Cyanide?

(CN)-1

(C2H3N)

Cyan

Chyd

12. What is the chemical formula for Chlorate?

ClO4

ClO

ClO2

(ClO3)-1

13. What is the chemical formula for hydroxide?

(HOH)2

(OH)2

(OH)-1

(HO)+1

The correct chemical formula for hydroxide is (OH)-1, which consists of one oxygen atom (O) bonded to one hydrogen atom (H) with a charge of -1. The other options provided are not valid representations of the hydroxide ion.

Explanation

The correct chemical formula for hydroxide is (OH)-1, which consists of one oxygen atom (O) bonded to one hydrogen atom (H) with a charge of -1. The other options provided are not valid representations of the hydroxide ion.

14. What is the chemical formula for acetate?

(C2H3O2)-1

C3H6O3

C4H6O4

CH4O2

Acetate is a negatively charged polyatomic ion composed of two carbon atoms, three hydrogen atoms, and two oxygen atoms. The correct formula is (C2H3O2)-1.

Explanation

Acetate is a negatively charged polyatomic ion composed of two carbon atoms, three hydrogen atoms, and two oxygen atoms. The correct formula is (C2H3O2)-1.