oxidation number

oxidation number

1st - 5th Grade

10 Qs

quiz-placeholder

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oxidation number

oxidation number

Assessment

Quiz

Chemistry

1st - 5th Grade

Practice Problem

Medium

NGSS
HS-PS1-2, HS-PS1-1

Standards-aligned

Created by

Yus Yusof

Used 43+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What is the oxidation number of Fe in FeO?

+1
-1
+2
-2

Tags

NGSS.HS-PS1-2

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The sum of all oxidation numbers in a neutral compound is ___.

0
1
-1
depends on the compound

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What is oxidation number of Cr in
Cr2O72-?

-2
+2
+6
+12

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are oxidation numbers?

Number of electrons in the outer most energy level
Number of protons
Electrons gained or lost in chemical bonding
Number of neutrons gained or lost

Tags

NGSS.HS-PS1-2

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Oxidation number of O in its stable elemental form, O2:

0

-1

-2

+2

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Oxidation number of Fe in Fe2+ ion:

0

-2

+2

+3

Tags

NGSS.HS-PS1-2

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the charge, or oxidation number, for elements in Group 2?

-2

+2

-3

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

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