(D] Not possible to obtain An electron in the principal quantum 10 number n=2 (A] Could be in the S-orbital or the P-orbital Is found in the S-orbital [B] |C) Give the Lymann series ID Occupy the P-orbital only What property may tika atoms of 11 DIFFERENT element have in common? JA The same number of protons IB] The same electronic cofiguration IC) |CJ The same number of neutrons IDI The same number of electrons 12 Gallium has two isotopes Ga and Ga n the proportion 6 1 What is the average atontic mass of Gallium? JA| 69. 8[B} 70. 1 [C] 69.0 [D] 70.2 Ouartion 13. 15 concem the diagram below

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Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Answer Q10, 11, 12

The heat of fonnation of gaseous
dilute sulphuric acid to the misture. a white
precipitate resulted.
If Sem' of wvater was tused instead of
hydrochloric acid
[A]
readily
[B].
potassium tons (K'tg) =+510KJ mol Whut
would the lattice energy of the potassium iodide
(Kl) be?
(A)-309 KJ mol [BJ4711 KJ mol
(C] +309kJmol
[D] Not possible to obtain due to insufficient data
An electron in the principal quantum
th
4.
in
The solid would have dissolved more
The resulting mixture would have been
acidic
10
di.
The suspension of the oxide in water
number n=2
Could be in the S-orbital or the P-orbital
would have resulted
[D].
formed
(A).
Is found in the S-orbital
Barium hydroxide would have been
[B]
Give the Lymann series
Occupy the P-orbital only
[B
di
[D).
What property may ta atoms of
DIFFERENT element have in common?
The same number of protos
The same electronic configuration
The same number of neutrons
5.
On adding the bydrochloric acid. the
mixture
11
di
[A]
B)
Was neutral
Cantain excess iydiechlorik ocid
Was alkaline
I8
Contain some BaCl:(Correction: some
|C)
[D]
BaCl).
The precipitate was
A misture
hy
The same number of electrons
Gallium has twvo isotopes Ga and Ga
in the proportion 61 What is the average atogtic
mass of Gallium?
JA] 69 8[B) 70 1 [C] 69.0 [D] 70.2
Question 13- 15 concem the diagram below
12
19
of barium clilorde ant
hydroxide
Barium hydroxide:
[B].
[C]
[D]
sulphate
Barium sulphate
A mixture of barium chloride and
In
20
If Sem of dilute nitric acid was used
sta
Fe
instend of hydrachloric acid
There would have been no change m the
observation
(B)
precipitatei
13arrum
nitrate
would
have
been
ele
There wiuld have been no precipitate
[D
dissolved
Question 8 and 9. The heats of formation (kJ
mot') of various clements are given below Use
the information to answer the questions that
followss
The solid barium uxide would not have
21
13
Which diagram represents a chlorine
molecule?
[A|[B] [CI [D]
Which dingram represents a sodium
14
[A
[C
Se
e=+107,111201,Hle=+26,1ieF+21
chloride contour map?
(A] [B] [C] [D]
Which of the following represent the heat
Which diagram represent silver iodide
15
22
of atemisation of lodine
TAF[B] [C] [D]
C in i aharcterictine
[cj +107
[DJ -107
of a mixtures will show a positive deviation Irom
23
Ragult's law
15
Transcribed Image Text:The heat of fonnation of gaseous dilute sulphuric acid to the misture. a white precipitate resulted. If Sem' of wvater was tused instead of hydrochloric acid [A] readily [B]. potassium tons (K'tg) =+510KJ mol Whut would the lattice energy of the potassium iodide (Kl) be? (A)-309 KJ mol [BJ4711 KJ mol (C] +309kJmol [D] Not possible to obtain due to insufficient data An electron in the principal quantum th 4. in The solid would have dissolved more The resulting mixture would have been acidic 10 di. The suspension of the oxide in water number n=2 Could be in the S-orbital or the P-orbital would have resulted [D]. formed (A). Is found in the S-orbital Barium hydroxide would have been [B] Give the Lymann series Occupy the P-orbital only [B di [D). What property may ta atoms of DIFFERENT element have in common? The same number of protos The same electronic configuration The same number of neutrons 5. On adding the bydrochloric acid. the mixture 11 di [A] B) Was neutral Cantain excess iydiechlorik ocid Was alkaline I8 Contain some BaCl:(Correction: some |C) [D] BaCl). The precipitate was A misture hy The same number of electrons Gallium has twvo isotopes Ga and Ga in the proportion 61 What is the average atogtic mass of Gallium? JA] 69 8[B) 70 1 [C] 69.0 [D] 70.2 Question 13- 15 concem the diagram below 12 19 of barium clilorde ant hydroxide Barium hydroxide: [B]. [C] [D] sulphate Barium sulphate A mixture of barium chloride and In 20 If Sem of dilute nitric acid was used sta Fe instend of hydrachloric acid There would have been no change m the observation (B) precipitatei 13arrum nitrate would have been ele There wiuld have been no precipitate [D dissolved Question 8 and 9. The heats of formation (kJ mot') of various clements are given below Use the information to answer the questions that followss The solid barium uxide would not have 21 13 Which diagram represents a chlorine molecule? [A|[B] [CI [D] Which dingram represents a sodium 14 [A [C Se e=+107,111201,Hle=+26,1ieF+21 chloride contour map? (A] [B] [C] [D] Which of the following represent the heat Which diagram represent silver iodide 15 22 of atemisation of lodine TAF[B] [C] [D] C in i aharcterictine [cj +107 [DJ -107 of a mixtures will show a positive deviation Irom 23 Ragult's law 15
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