What is the total oxidation number for the elements in AlH4-?

Oxidation Numbers in AlH4-

Interactive Video
•
Chemistry
•
9th - 10th Grade
•
Hard

Mia Campbell
FREE Resource
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8 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
0
-1
+1
-2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the oxidation number of hydrogen when bonded to a metal?
-1
+2
0
+1
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many hydrogen atoms are present in AlH4-?
2
3
4
5
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the oxidation number of aluminum in AlH4-?
-3
0
+3
+1
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which equation represents the relationship between the oxidation numbers in AlH4-?
x + 4(-1) = 0
x + 4(-1) = -1
x - 4 = 1
x + 4 = -1
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the result of adding the oxidation numbers of all elements in AlH4-?
+1
-2
0
-1
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is the oxidation number of hydrogen negative in AlH4-?
Because it is bonded to a metal
Because it is in a neutral compound
Because it is in a positive ion
Because it is bonded to a non-metal
8.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the significance of verifying the oxidation numbers in AlH4-?
To find the number of atoms
To determine the molecular weight
To confirm the charge of the ion
To ensure the compound is stable
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