strange chem question

[budda10000]

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I am honestly lost on this one??? I have never seen anything like it in any of my chem courses.

64. Which of the following represents the
CHANGE in oxidation state of nitrogen during
the chemical reaction?
2NO + 3S + 4H2O2HNO3 + 3H2S ?
A. 1
B. 2
C. 3
D. 4
E. 5

 

[wired202808]

I am honestly lost on this one??? I have never seen anything like it in any of my chem courses.

64. Which of the following represents the
CHANGE in oxidation state of nitrogen during
the chemical reaction?
2NO + 3S + 4H2O2HNO3 + 3H2S ?
A. 1
B. 2
C. 3
D. 4
E. 5

did you write the equation correctly?

 

[budda10000]

did you write the equation correctly?

copy and pasted directly from a practice test so not sure what you mean? the little symbol in the middle is just an arrow in your typical chemical rxn

 

[mh0000]

I am honestly lost on this one??? I have never seen anything like it in any of my chem courses.

64. Which of the following represents the
CHANGE in oxidation state of nitrogen during
the chemical reaction?
2NO + 3S + 4H2O2HNO3 + 3H2S ?
A. 1
B. 2
C. 3
D. 4
E. 5

NO: Oxygen has an oxidation state of -2, therefore N must have a +2 ox. state
HNO3: N has an oxidation state of +5 (nitrate has a negative charge, so the sum of the oxidation states of nitrate must be -1. 3(-2) + x = -1, where x=ox. state of N)

the change is 3

 

[budda10000]

oh wow, now i realize what the problem was asking haha. Do they go out of their way to word problems in awkward ways?

 

[wired202808]

oh wow, now i realize what the problem was asking haha. Do they go out of their way to word problems in awkward ways?

there is no symbol in the middle lol its just a typical oxidation problem, remember chad's rules and you'll be golden.

 

[budda10000]

no I was referring to the wording of the problem. A better way would have been
By how much the the oxidation state of nitrogen change in this reaction?
Not "which represents" thats just strange. Sometimes I think they hire ESL ppl to write these tests.

 

[wired202808]

no I was referring to the wording of the problem. A better way would have been
By how much the the oxidation state of nitrogen change in this reaction?
Not "which represents" thats just strange. Sometimes I think they hire ESL ppl to write these tests.

lol dude no offense but thats proper english. you can say "which represents" (it implies which of the following) and its clear that there is an oxidation change if you write out the formula and look at it. I dont mean to bust your chops but I think its worded properly and a fair question to ask. I would focus more on the concept and how to get it right vs. the english, since its a chem question after all.