Question 1

Which of the following best describes a covalent bond?

Accepted Answer

A bond formed by the sharing of electrons between two nonmetal atoms.

Question 2

Which of the following is the correct empirical formula for glucose, given its molecular formula is $$C_6H_{12}O_6$?

Accepted Answer

$$CH_2O$$

Question 3

What is the correct name for the compound $$Fe_2O_3$$?

Accepted Answer

Iron(III) oxide

Question 4

Which of the following compounds is an example of a molecular (covalent) compound?

Accepted Answer

$$CO_2$$

Question 5

A student is given a sample of $$CoCl_2$$ \cdot 6H_2O$$. What is the term used to describe this type of compound?

Accepted Answer

Hydrate

Question 6

Which of the following ions is a polyatomic ion?

Accepted Answer

$$NO_3$$^-$$

Question 7

What is the correct formula for rubidium sulfate?

Accepted Answer

$$RbSO_4$$

Question 8

Which of the following best describes the difference between a molecular formula and a structural formula?

Accepted Answer

A molecular formula shows the actual number of atoms, while a structural formula shows how atoms are connected.

Question 9

Which of the following is a diatomic element in its natural state?

Accepted Answer

Nitrogen ($$N_2)$$

Question 10

What is the correct name for $$NaNO_3$$?

Accepted Answer

Sodium nitrate

Question 11

Which of the following compounds contains a transition metal?

Accepted Answer

$$CuSO_4$$

Question 12

What is the correct formula for calcium phosphate?

Accepted Answer

$$Ca_3$$($$PO_4)_2$

Question 13

Which of the following is the correct name for $$N_2O_5$$?

Accepted Answer

Dinitrogen pentoxide

Question 14

A compound is composed of only sodium and chlorine. What type of bond is present in this compound?

Accepted Answer

Ionic bond

Question 15

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

Accepted Answer

$$(NH_4$)_2CO_3$$

Question 16

Which statement is true about the naming of binary ionic compounds?

Accepted Answer

The metal is named first, followed by the nonmetal with its ending changed to '-ide'.

Question 17

Which of the following is a correct structural formula for water?

Accepted Answer

$$H-O-H$$

Question 18

A compound contains two nonmetals and is named using prefixes. Which of the following is a correct name for $$SF_6$$?

Accepted Answer

Sulfur hexafluoride

Question 19

Which of the following is the correct formula for copper(II) phosphate?

Accepted Answer

$$Cu_3$$($$PO_4)_2$

Question 20

Which of the following statements about polyatomic ions is correct?

Accepted Answer

Polyatomic ions are composed of two or more atoms covalently bonded that act as a single ion.

Elements, Molecules, and Compounds: Structure, Classification, and Nomenclature

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