Exam (elaborations)
ACS Gen Chem Practice Exam 2024/2025 Questions With Completed & Verified Solutions.
- Course
- Institution
ACS Gen Chem Practice Exam 2024/2025 Questions With Completed & Verified Solutions.
[Show more]
Content preview
ACS Gen Chem Practice ExamWhich is the strongest oxidizing agent?
N a →← N a + + e - 2 . 7 1 V
Cd →← Cd2+ + 2e- 0.40 V
H2 →← 2H+ +2e- 0.00V
Ag→← Ag++e- -0.80V
(A) Na+
(B)H2
(C) Cd0
(D)Ag+ - ANS Ag+
All are examples of Lewis acid-base reactions except
Cu2+(aq) + 4NH3(aq) →← [Cu(NH3)4]2+(aq)
HCl(g) + NH3(g) → NH4Cl(s)
H+(aq) + OH-(aq) →← H2O(l)
2Na(s) + Cl2(g) → 2NaCl(s) - ANS 2Na + Cl2 -> 2NaCl(s)
According to the Lewis definition, an acid is a species - ANS accepting a pair of electrons
All are potential Lewis bases except
NH3
H2O
CH4
CN- - ANS CH4
Which hydrated metal ion is most acidic under conditions of equal molar concentration in water?
- ANS Al3+
Which element in Group 5A forms the most basic oxide? - ANS Bi
In what respect does an atom of magnesium differ from a magnesium ion (Mg^2+) - ANS The
ion has more stable electronic arrangement than the atom
A certain atom has the symbol 148/73Px. What does the symbol tell about an atom of the
element? - ANS It has 75 neutrons in the nucleus
The atomic mass of an element is 32.07 u and its atomic number is 16. The number of protons
contained in the nucleus of an atom of this element is - ANS 16
The atomic mass of an element is 32.07 u and its atomic number is 16. The element forms a
simple ion. The ion will most likely have a charge of - ANS 2-
, Which atom contains 7 neutrons
A. n=1 n=2 n=3
M=24,z=12 2e 8e 2e
B. n=1 n=2 n=3
M=15 z=7 2e 5e
C. n=1 n=2 n=3
M=17, z=10 2e 8e
D. n=1 n=2 n=3
M=34, z=17 2e 8e 7e - ANS C
In which pair of compounds should the first member be more covalent than the second
member?
A TlCl, TlCl3
B SnI4,SnF4
C LiF, BF3
D SnF4, CF4 - ANS SnI4, SnF4
Which is the most complete and best description of a covalent bond? - ANS a system of nuclei
where each atom donates one electron to the other atom, thus forming a bond
Which pair of elements is most likely to react to form a covalently bonded species?
A P and O
B Ca and O
C K and S
D Zn and C - ANS P and O
Which chloride should exhibit the most covalent type of bond?
NaCl
KCl
CaCl2
BaCl2
BeCl2 - ANS BeCl2
Which two elements are most likely to involve covalent bonding?
Q 0.9
R 1.0
T 2.8
X 3.0
Z 4.0 - ANS T and X
Chromium metal can be plated from an acidic solution of CrO3.
How many grams of chromium will be plated by the passage of 19,300 C - ANS 1.73g
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller phylliswambui. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $9.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
75759 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now