

Oxidation States and Compounds
Interactive Video
•
Chemistry, Science, Physics
•
9th - 12th Grade
•
Practice Problem
•
Hard
Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main objective of the problem discussed in the video?
To find the molecular weight of magnesium hydride
To determine the oxidation state of hydrogen in magnesium hydride
To calculate the charge of magnesium hydride
To identify the elements in magnesium hydride
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first step in determining the oxidation state of an element in a compound?
Check if the compound is a polyatomic ion
Determine if the substance is elemental
Apply the general rules for oxidation states
Identify the charge of the compound
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What should be done if a compound is not elemental?
Calculate the molecular weight
Apply the general rules for oxidation states
Move on to determine if the substance has a charge
Identify the elements in the compound
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is a general rule for oxidation states?
Hydrogen is always +1
Oxygen is always -1
Magnesium is always -2
Group 2 metals are always +2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the oxidation state of magnesium in magnesium hydride?
0
+1
+2
-1
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many hydrogen atoms are present in magnesium hydride?
One
Four
Two
Three
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the total oxidation number of hydrogen in magnesium hydride?
0
+2
-1
-2
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