What is the overall charge of the compound H2SeO3?

Oxidation Numbers and Compounds

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Chemistry
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9th - 10th Grade
•
Hard

Amelia Wright
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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Neutral
Variable
Negative
Positive
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the oxidation number of hydrogen when bonded to non-metals?
+1
+2
0
-1
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the typical oxidation number of oxygen in compounds?
-1
+2
-2
0
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many hydrogen atoms are present in H2SeO3?
4
2
1
3
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the oxidation number of selenium in H2SeO3?
+2
+4
0
+6
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the result of the equation 2(1) + x + 3(-2) = 0?
x = -4
x = 0
x = +4
x = +2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of verifying the oxidation numbers in the compound?
To ensure the compound is stable
To confirm the sum equals zero
To find the molecular weight
To determine the compound's color
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