Description
CHEM110 Week 2: Exam 1 [Sept-2026]
What is the formula for “carbon tetrachloride”?
- C₂Cl₄
B. CCl₄ ✅
C. CCl
D. C₄Cl
What is the correct name for the compound with the formula NO?
- Nitric oxide
B. Nitrogen monoxide ✅
C. Nitrate
D. Mononitrogen monoxide
How many protons are in an atom of aluminum?
- 13 ✅
B. 12
C. 26
D. 3
Which element pair would form a covalent bond by sharing electrons?
A. Magnesium and sulfur
B. Hydrogen and fluorine ✅
C. Potassium and chlorine
D. Calcium and oxygen
Which of the following molecules has a tetrahedral shape?
A.
H–O–H
B.
- •
H–N–H
|
H
C. ✅
H
|
H–C–H
|
H
D.
- • ••
O=C=O
- • ••
Which Lewis structure correctly shows CH₄ (methane)?
A.
H–H–C–H–H
B.
H
║
H═C═H
║
H
C. ✅
H
|
H–C–H
|
H
D.
H
|
H–C–H
|
H
(with electron dots around the H atoms)…………………………..purchase all the 25 questions and answers at $25 only
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