Ionic Compounds and Polyatomic Ions Quiz

Test your knowledge of ionic compounds and polyatomic ions with these questions on charges, formulas, and roles of ions.

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

H2O

CO2

NaCl

CH4

What is the charge of the sulfate ion (SO4^2-)?

-1

-2

Which of the following pairs represents an ionic compound?

H2O and CO2

NaCl and HCl

N2 and O2

CH4 and NH3

What is the charge of the ammonium ion (NH4^+)?

-1

-2

Which of the following substances is an ionic compound?

H2O

CH4

Na2CO3

C6H12O6

In an ionic compound, what is the role of the cation?

It gains electrons

It loses electrons

It shares electrons

It doesn't participate in electron transfer

Which of the following polyatomic ions has a charge of -1?

Carbonate (CO3^2-)

Hydroxide (OH^-)

Ammonium (NH4^+)

Sulfate (SO4^2-)

In an ionic compound, what is the role of the anion?

It gains electrons

It loses electrons

It shares electrons

It doesn't participate in electron transfer

Which of the following polyatomic ions has a charge of -2?

Carbonate (CO3^2-)

Hydroxide (OH^-)

Ammonium (NH4^+)

Sulfate (SO4^2-)

#10

In an ionic compound, what is the overall charge?

Neutral

Positive

Negative

Variable

#11

What is the formula for the compound formed between calcium ions and nitrate ions?

Ca(NO3)2

Ca(NO3)3

Ca2NO3

Ca2(NO3)3

#12

What is the formula for the compound formed between aluminum ions and phosphate ions?

AlPO4

Al(PO4)2

Al2(PO4)3

Al3(PO4)2

#13

What is the formula for the compound formed between magnesium ions and chloride ions?

MgCl

MgCl2

Mg2Cl

Mg2Cl2

#14

What is the formula for the compound formed between potassium ions and iodide ions?

K2I

KI2

K2I2

#15

What is the formula for the compound formed between iron(III) ions and cyanide ions?

FeCN

Fe(CN)2

Fe(CN)3

Fe3(CN)2