Question 1

Which of the following best describes how a covalent bond forms between two atoms?

Accepted Answer

By the sharing of one or more pairs of electrons between two atoms

Question 2

A compound is found to contain 36.86% nitrogen and 63.14% oxygen by mass. What is the empirical formula of this compound? (Atomic masses: N = 14.01, O = 16.00)

Accepted Answer

$$\mathrm{NO_2$}$$

Question 3

Which of the following ions is paramagnetic in its ground state electron configuration?

Accepted Answer

$$\mathrm{Fe$$^{3+}$$}$$

Question 4

What is the molecular formula of a compound with an empirical formula of $$\mathrm{C_9H_8O_4}$$ and a molar mass of 180 g/mol?

Accepted Answer

$$\mathrm{C_9H_8O_4}$$

Question 5

Which of the following compounds contains the highest percentage by mass of beryllium (Be)?

Accepted Answer

Beryllium phosphide ($$\mathrm{Be_3P_2})$$

Question 6

Which of the following elements has the highest first ionization energy ($$IE_1$$)?

Accepted Answer

Argon ($$\mathrm{Ar})$$

Question 7

Which of the following pairs of elements is most likely to form an ionic bond?

Accepted Answer

Rubidium and Sulfur

Question 8

What is the correct formula for barium permanganate?

Accepted Answer

$$\mathrm{Ba($$MnO_4$$)_2}$$

Question 9

Which of the following best describes a cation?

Accepted Answer

An atom or molecule that has lost one or more electrons

Question 10

Which of the following compounds has the highest lattice energy?

Accepted Answer

$$\mathrm{MgO}$$

Question 11

How many valence electrons are present in the $$\mathrm{P$$^{3-}$$}$$ ion?

Accepted Answer

8

Question 12

Which of the following is a property common to both lanthanides and actinides?

Accepted Answer

They have partially filled f-orbitals

Question 13

Which of the following best describes the difference between metals and non-metals?

Accepted Answer

Metals are generally good conductors of electricity, while non-metals are poor conductors

Question 14

A sample of a compound contains 60.00% C, 4.48% H, and 35.52% O by mass. What is the empirical formula of this compound? (Atomic masses: C = 12.01, H = 1.008, O = 16.00)

Accepted Answer

$$\mathrm{C_9H_8O_4}$$

Question 15

Which of the following is the correct name for $$\mathrm{$$HClO_4$$}$$?

Accepted Answer

Perchloric acid

Question 16

How many pairs of electrons are shared in a covalent triple bond?

Accepted Answer

3

Question 17

Which of the following best describes the physical state of bromine ($$\mathrm{Br_2$}) at $$room temperature?

Accepted Answer

Liquid

Question 18

Which of the following is the correct electron configuration for $$\mathrm{Zn$$^{2+}$$}$$?

Accepted Answer

$$[\mathrm{Ar}]\ 3d$$^{10}$$

Question 19

Which of the following best describes the type of bond between phosphorus and oxygen in $$\mathrm{PO_4$^{3-}}$$?

Accepted Answer

Covalent bond

Question 20

Which of the following is the correct formula for barium dichromate?

Accepted Answer

$$\mathrm{BaCr_2O_7}$$

General Chemistry Exam 2 Study Guide – Step-by-Step Guidance

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