Redox Day 1
Authored by Sarah Kirchhoff
Science
9th - 12th Grade
NGSS covered
Used 4+ times
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8 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Zinc reacts with steam to form zinc oxide and hydrogen.
Zn + H2O ------> ZnO + H2 During the reaction, which substance is oxidised?
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Which half-reaction correctly represents reduction?
Ag --> Ag+ + e-
F2 --> 2 F- + 2e-
Au3+ + 3e- --> Au
Fe2+ + e- --> Fe3+
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
This is the half reaction for:
Sn(s) → Sn4+(aq) + 4e−
Tags
NGSS.HS-PS1-2
NGSS.HS-PS1-1
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
What is the oxidation number of carbon in NaHCO3?
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
What is oxidation number of Cr in Cr2O72-?
-2
+2
+6
+12
Tags
NGSS.HS-PS1-2
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Which change is reduction?
Tags
NGSS.HS-PS1-2
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
A chemical reaction that involves a gain/loss of electrons is called:
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