What is the main question addressed in the stoichiometry problem involving cobalt(II) sulfate and zinc metal?

Zinc and Cobalt Reaction Concepts

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Chemistry
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10th - 12th Grade
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Hard

Patricia Brown
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Can zinc metal reduce cobalt(II) sulfate?
Can cobalt(II) sulfate reduce zinc metal?
Can zinc metal oxidize cobalt(II) sulfate?
Can cobalt(II) sulfate oxidize zinc metal?
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the reaction between zinc metal and cobalt(II) sulfate, what is the net ionic equation?
Zn + CoSO4 → ZnSO4 + Co
Zn + Co^2+ → Zn^2+ + Co
Zn^2+ + Co → Zn + Co^2+
ZnSO4 + Co → Zn + CoSO4
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many moles of zinc are present when 2.6 grams of zinc is used?
0.398 moles
0.95 moles
0.152 moles
0.6539 moles
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which reactant is the limiting reactant in the reaction between zinc and cobalt(II) sulfate?
Cobalt metal
Zinc
Cobalt(II) sulfate
Zinc sulfate
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the mass of cobalt produced from the reaction?
58.93 grams
0.398 grams
1.52 grams
2.35 grams
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why does no reaction occur when zinc metal is mixed with magnesium metal?
Zinc has a higher reduction potential than magnesium.
Zinc and magnesium form a stable compound.
Magnesium has a higher reduction potential than zinc.
Both metals are neutral and have no desire for electrons.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens when zinc ion is mixed with magnesium metal?
No reaction occurs.
Zinc ion gains electrons from magnesium.
Magnesium ion gains electrons from zinc.
Zinc metal forms a compound with magnesium.
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