5 Steps to a 5 AP Chemistry

18  STEP 2. Determine Your Test Readiness

Getting Started: The Diagnostic Exam

The following problems refer to different chapters in the book. It is not important whether

you get the correct answers. If you have a problem with one or more questions from a chapter,

review the chapter. You may use a calculator and the periodic table. For each question, circle

the letter of your choice.

Chapter 5

1.In most of its compounds, this element exists as a
monatomic cation.

(A) F

(B) S

(C) N

(D) Ca

(E) Cl

2.Which of the following groups has the species cor-
rectly listed in order of decreasing radius?

(A) Cu^2 +, Cu+, Cu

(B) V, V^2 +, V^3 +

(C) F−, Br−, I−

(D) B, Be, Li

(E) Li+, K+, Cs+

3.Which of the following elements has the lowest
electronegativity?

(A) F

(B) I

(C) Ba

(D) Al

(E) C

4.Which of the following represents the correct
formula for hexaamminecobalt (III) nitrate?

(A) [Co 3 (NH 3 ) 6 ](NO 3 ) 3

(B) [Co(NH 3 ) 6 ](NO 2 ) 3

(C) Am 6 Co(NO 3 ) 3

(D) (NH 3 ) 6 Co 3 (NO 3 )

(E) [Co(NH 3 ) 6 ](NO 3 ) 3

5.The discovery that atoms have small, dense nuclei
is credited to which of the following?

(A) Einstein

(B) Dalton

(C) Bohr

(D) Rutherford

(E) Becquerel

Chapter 6

6.Choose the strongest Lewis acid from the

following.

(A) BF 3

(B) F−

(C) OH−

(D) CH 4

(E) S^2 −

7._____Mn(OH) 2 (s)+____H 3 AsO 4 (aq)→

_____ Mn 3 (AsO 4 ) 2 (s) +_____H 2 O(1)

After the above chemical equation is balanced,

the lowest whole-number coefficient for water is:

(A) 6

(B) 2

(C) 12

(D) 3

(E) 9

Choose one of the following for questions 8–10.

(A) Cu^2 +

(B) CO 32 −

(C) Fe^3 +

(D) Al^3 +

(E) Pb^2 +

8.This ion will form a precipitate when added to a

sodium sulfate solution.

9.This ion gives a deep blue color when excess aque-

ous ammonia is added to a solution containing it.

10.Aqueous solutions of this ion give a reddish pre-

cipitate when excess hydroxide ion is added.

11.Which of the following best represents the net

ionic equation for the reaction of calcium hydrox-

ide with an aqueous sodium carbonate solution?

(A) Ca^2 ++Na 2 CO 3 → CaCO 3 +2 Na+

(B) 2 Ca(OH) +Na 2 CO 3 → Ca 2 CO 3 +2 NaOH

(C) Ca(OH) 2 +CO 32 −→CaCO 3 +2 OH−

(D) Ca^2 ++CO 32 −→ CaCO 3

(E) Ca(OH) 2 +Na 2 CO 3 → CaCO 3 +2 NaOH