AnswersChemistry - SC3210 A-CRCumulative Exam

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What is the chemical formula for iron(II) hydroxide?

A
FeOH
Option A
B
Fe(OH)
Option B
C
FeOH
Option C
D
FeOH
42
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What is the name of the ionic compound RbCl?

A
rubidium chloride
B
chlorine rubidium
C
rubidium chlorine
D
chlorine rubidide
43

Based on the activity series provided, which reactants will form products?F > Cl > Br > I

A
CuI2 + Br2
Option A
B
Cl2 + AlF3
Option B
C
Br2 + NaCl
Option C
D
CuF2 + I2
Option D
44

Assuming the compound is dissolved in water, what is the formula for phosphorous acid?NameSymbolphosphatePOphosphitePOphosphorusP

Question illustration
A
H3P
B
H3PO4
C
HP
D
H3PO3
45

Consider the half reactions below for a chemical reaction.What is the overall equation for this chemical reaction?

Question illustration
A
Upper M g (s) plus 2 upper H superscript plus (a q) right arrow upper M g superscript 2 plus (a q) plus upper H subscript 2 (g).
Option A
B
Upper M g (s) plus 2 upper H superscript plus (a q) right arrow upper M g superscript 2 plus (a q) plus 2 e superscript minus.
Option B
C
Upper M g superscript 2 plus (a q) plus upper H subscript 2 (g) right arrow upper M g (s) plus 2 upper H superscript plus (a q).
Option C
D
Upper M g (s) plus 2 upper H right arrow upper M g (a q) plus upper H subscript 2 (g).
Option D
46

Consider the redox reaction below.Which statement correctly describes a half-reaction that is taking place?

Question illustration
A
Hydrogen is oxidized from +1 to 0.
B
Chlorine is reduced from –1 to 0.
C
Aluminum is oxidized from 0 to +3.
D
Hydrogen is reduced from 0 to –1.
47

In which orbitals would the valence electrons for carbon (C) be placed?

A
s orbital and d orbitals
B
s orbital only
C
p orbitals only
D
s orbital and p orbitals
48

The diagram below shows that the periodic table is divided into different blocks.Elements that have complete valence electron shells are mostly found in the

Question illustration
A
s block.
B
d block.
C
p block.
D
f block.
49

Kumar is producing the photoelectric effect by using red light. He wants to increase the energy of emitted electrons. Based on the research of Albert Einstein, what is the best way for him to do this?

A
Increase the intensity of red light.
B
Decrease the intensity of red light.
C
Use a different colored light that has a higher frequency.
D
Use a different colored light that has a lower frequency.
50

Sodium chloride is made up of clear, colorless crystals. A solution of sodium chloride in water is a good conductor of electricity. Which statement describes sodium chloride?

A
It is made up of ions that are held together by ionic bonds.
B
It is made up of atoms that are held together by metallic bonds.
C
It is made up of atoms that are held together by covalent bonds with equal sharing of electrons.
D
It is made up of atoms that are held together by covalent bonds with unequal sharing of electrons.

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