What is the significance of the absence of a charge sign after the compound NaBH4?

Oxidation States in NaBH4

Interactive Video
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Chemistry
•
10th - 12th Grade
•
Hard

Aiden Montgomery
FREE Resource
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8 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
It suggests the compound is basic.
It means the compound is acidic.
It shows the compound is neutral.
It indicates the compound is ionic.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the oxidation state of sodium in NaBH4?
+2
+1
-1
0
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When hydrogen is bonded to metals or boron, what is its oxidation state?
0
+1
-1
+2
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many hydrogen atoms are present in NaBH4, and what is their total contribution to the oxidation state?
4 hydrogen atoms, contributing +4
4 hydrogen atoms, contributing -4
3 hydrogen atoms, contributing -3
3 hydrogen atoms, contributing +3
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the oxidation number of boron in NaBH4?
-3
0
+1
+3
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What equation is used to determine the oxidation number of boron in NaBH4?
1 + x - 4 = 1
1 + x + 4 = 0
1 + x + 4 = 1
1 + x - 4 = 0
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you verify that the oxidation numbers in NaBH4 add up to zero?
By adding the oxidation numbers of sodium, boron, and hydrogen.
By subtracting the oxidation numbers of sodium and hydrogen from boron.
By multiplying the oxidation numbers of sodium and hydrogen.
By dividing the oxidation numbers of sodium and boron.
8.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the final step to confirm the neutrality of NaBH4?
Check if the sum of oxidation numbers equals 0.
Check if the sum of oxidation numbers equals +2.
Check if the sum of oxidation numbers equals -1.
Check if the sum of oxidation numbers equals +1.
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