Question

Which of the following is true concerning the reaction below?

H2S + HNO3 → S + NO + H2O

A. S is reduced.

B. H is oxidized.

C. N is reduced.

D. O is oxidized.

Answer 1

I THINK c IS THE ANSWER

Answer 2

N went from +5 to +2, which is a reduction reaction, and S went from -2 to 0, which a oxidation reaction.

Answer 3

yes

Answer 4

From the unbalanced equations below, identify the one that does not represent a redox reaction.

A. H2CO3(aq) → CO2(g) + H2O(l)

B. C(s) + H2O(g) → CO(g) + H2(g)

C. S2O32- (aq) + I2(s) → S4O62+ (aq) + I-(aq)

Answer 5

PLEASE SAM DONT GO HELP ME WITH SOME OF MY WRONG QUESTIONS

Answer 6

Your wrong questions?

Answer 7

i mean iam asking you the questions which i got wrong during my test

Answer 8

I know that

Answer 9

i think answer is A

Answer 10

Yeah Its A because there's no change in oxidation number

Answer 11

_____ is the complete or partial gain of electrons or the loss of oxygen.

A. Reduction

B. Oxidation

C. Half-reaction

D. Redox

Answer 12

what do you think

Answer 13

i think A

Answer 14

yaaaa ur right

Answer 15

When the equation H2S + HNO3 → S + NO + H2O is balanced, what is the coefficient for H2O?

A. 2

B. 4

C. 3

D. 6

Answer 16

which one do u think and why?

Answer 17

i thought it was C

Answer 18

nooo its not

Answer 19

B

Answer 20

but how can you tell:)

Answer 21

3 hydrogen before the reaction
2 in the product

Answer 22

then it should be 3H2O know then

Answer 23

thats the problem

Answer 24

see now if three H are there on left right
you want o balance on the right the same
but on right u have only 2 H
to make them equal you should multiply the left by two and right by three do u agree or no

Answer 25

yea

Answer 26

but if you right can you balance the oxygen ob both side please check

Answer 27

A

Answer 28

nooo nooo
its 4

Answer 29

3 H2S + 2 HNO3 = 3 S + 2 NO + 4 H2O

Answer 30

very difficult to teach this through computer iam sorry !!!
you just think over it

Answer 31

What is the oxidized substance in the following reaction?

Fe + 2HCl → FeCl2 + H2

A. Fe

B. HCl

C. FeCl2

D. H2

Answer 32

i think its A

Answer 33

why???

Answer 34

Fe +2

Answer 35

sorry no H+

Answer 36

yaa its A FE oxidation state on left is 0 and right hand side is +2 hence it has lost two electrons and became +2 hence it is oxidisied