$$\text{Cl}_2\text{O} ($$dichlorine monoxide)

$$\text{Ca}^{2+}$$ \text{and} \text{SO}_$$4^{2-}$

Question 1

Which of the following correctly represents the chemical formula for magnesium phosphate?

Accepted Answer

$$	ext{Mg}_3(	ext{PO}_4)_2$$

Question 2

What is the correct name for the compound with the formula $$	ext{CaO}$$?

Accepted Answer

Calcium oxide

Question 3

Which compound is classified as a covalent (molecular) compound?

Accepted Answer

$$	ext{Cl}_2	ext{O} ($$dichlorine monoxide)

Question 4

A patient receives a plaster cast made of calcium sulfate. Which ions are present in this compound?

Accepted Answer

$$	ext{Ca}^{2+}$$ 	ext{and} 	ext{SO}_$$4^{2-}$

Question 5

Which of the following is the correct formula for ammonium carbonate?

Accepted Answer

$$(	ext{NH}_4)_2	ext{CO}_3$$

Question 6

What is the correct name for the compound $$	ext{Li}_2	ext{SO}_4$$?

Accepted Answer

Lithium sulfate

Question 7

Which of the following compounds contains a polyatomic ion?

Accepted Answer

$$	ext{Na}_2	ext{SO}_4$$

Question 8

A fertilizer contains ammonium nitrate. What is the formula for this compound?

Accepted Answer

$$	ext{NH}_4	ext{NO}_3$$

Question 9

Which of the following is the correct formula for gold(I) oxide?

Accepted Answer

$$	ext{Au}_2	ext{O}$$

Question 10

What is the correct formula for iron(III) fluoride?

Accepted Answer

$$	ext{FeF}_3$$

Question 11

Which of the following best describes the bonding in $$	ext{MgCl}_2$$?

Accepted Answer

Ionic bonding

Question 12

A patient is prescribed a medication containing sodium sulfate. What is the formula for sodium sulfate?

Accepted Answer

$$	ext{Na}_2	ext{SO}_4$$

Question 13

Which of the following is the correct formula for dichlorine monoxide?

Accepted Answer

$$	ext{Cl}_2	ext{O}$$

Question 14

Which of the following is a correct example of a compound containing a polyatomic cation?

Accepted Answer

$$(	ext{NH}_4)_2	ext{CO}_3$$

Question 15

Which of the following is the correct formula for aluminum hydroxide?

Accepted Answer

$$	ext{Al}(	ext{OH})_3$$

Question 16

Copper(II) chloride is used in a laboratory experiment. What is its formula?

Accepted Answer

$$	ext{CuCl}_2$$

Question 17

Which of the following is the correct formula for calcium carbonate?

Accepted Answer

$$	ext{CaCO}_3$$

Question 18

Which of the following best describes the bonding in $$	ext{Cl}_2	ext{O}$$?

Accepted Answer

Covalent bonding

Question 19

A compound is formed from $$	ext{Fe}^{3+}$$ and $$	ext{F}^-$$ ions. What is the correct formula for this compound?

Accepted Answer

$$	ext{FeF}_3$$

Question 20

Which of the following is the correct formula for dihydrogen sulfide?

Accepted Answer

$$	ext{H}_2	ext{S}$$

Ionic and Molecular Compounds: Naming, Formulas, and Polyatomic Ions

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