1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Artist 52 [7]
3 years ago
10

Directions: Each set of lettered choices below refers to the numbered statements immediately following it. Select the one letter

ed choice that best fits each statement. A choice may be used once, more than once, or not at all in each set. The following questions refer to the reactions represented below. (A) H2SeO4(aq) + 2 Cl-(aq) + 2 H+(aq) → H2SeO3(aq) + Cl2(g) + H2O(l) (B) S8(s) + 8 O2(g) → 8 SO2(g) (C) 3 Br2(aq) + 6 OH-(aq) → 5 Br-(aq) + BrO3-(aq) + 3 H2O(l) (D) Ca2+(aq) + SO42-(aq) → CaSO4(s) (E) PtCl4(s) + 2 Cl-(aq) → PtCl62-(aq) A reaction in which the same reactant undergoes both oxidation and reduction
Chemistry
1 answer:
maksim [4K]3 years ago
6 0

Answer : The only reaction (C) that shows that the same reactant undergoes both oxidation and reduction.

Explanation :

Disproportionation reaction : It is defined as the reaction in which the same reactant undergoes both oxidation and reduction reaction. It is a redox reaction.

Redox reaction or Oxidation-reduction reaction : It is defined as the reaction in which the oxidation and reduction reaction takes place simultaneously.

Oxidation reaction : It is defined as the reaction in which a substance looses its electrons. In this, oxidation state of an element increases. Or we can say that in oxidation, the loss of electrons takes place.

Reduction reaction : It is defined as the reaction in which a substance gains electrons. In this, oxidation state of an element decreases. Or we can say that in reduction, the gain of electrons takes place.

(A) The given balanced reaction is,

H_2SeO_4(aq)+2Cl^-(aq)+2H^+(aq)\rightarrow H_2SeO_3(aq)+Cl_2(g)+H_2O(l)

This reaction is a redox reaction but not disproportionation reaction because in this reaction there are two reactants in which chlorine shows oxidation and selenium shows reduction.

(B) The given balanced reaction is,

S_8(s)+8O_2(g)\rightarrow 8SO_2(g)

This reaction is a redox reaction but not disproportionation reaction because in this reaction there are two reactants in which sulfur shows oxidation and oxygen shows reduction.

(C) The given balanced reaction is,

3Br_2(aq)+6OH^-(aq)\rightarrow 5Br^-(aq)+BrO_3^-(aq)+3H_2O(l)

This reaction is a disproportionation reaction because in this reaction only one reactant bromine that shows both oxidation and reduction reaction.

(D) The given balanced reaction is,

Ca^{2+}(aq)+SO_4^{2-}(aq)\rightarrow CaSO_4(s)

This reaction is a combination reaction in which the two reactant react to give a single product. There is no changes in the oxidation state of calcium and sulfate.

(E) The given balanced reaction is,

PtCl_4(s)+2Cl^-(aq)\rightarrow PtCl_6^{2-}(aq)

This reaction is a combination reaction in which the two reactant react to give a single product. There is no changes in the oxidation state of platinum and chlorine.

Hence, the only reaction (C) that shows that the same reactant undergoes both oxidation and reduction.

You might be interested in
Whats 2×2 rhdbdjdjddjdjkdjdbdbfbdbxb​
Elan Coil [88]

Answer:

The answer might be 4, been a while since I've done third grade math though.

8 0
3 years ago
Read 2 more answers
Which is NOT a phase of mitosis?
ss7ja [257]
Interphase is not a phase of mitosis.
3 0
3 years ago
Read 2 more answers
Is the first part "kilo" from the word kilograms a suffix, prefix or unit???​
Nikolay [14]

Answer:

Kilo is a prefix

Explanation:

Prefixes are the beginning of words.

Thus KILOgram is at the beginning.

Suffix is at the END of a word

Unit is the body of the word

7 0
3 years ago
Read 2 more answers
Substance in mixtures do not change chemically. True or false
AnnZ [28]

Answer:

find the answer elsewhere

Explanation:

8 0
2 years ago
Would tennessine have properties similar to sulfur, chlorine, or hydrogen
ELEN [110]

Answer:

IDK sorry

Explanation:

3 0
3 years ago
Other questions:
  • If you add MeOH to CoCl2(Alc)2, the CoCl2(Alc)2 concentration will change. What are the two reasons for this concentration chang
    13·1 answer
  • if a body is in motion at constant speed in a straight line, what, of any, forces could be acting on it
    12·1 answer
  • the two amino acids, glycine and alanine, can form two different dipeptides. Draw one of the possible dipeptides as it would app
    9·1 answer
  • How many joules of heat are required to heat 25.0 g of isopropyl alcohol from the prevailing room temperature, 21.2 oC, to its b
    11·1 answer
  • George knows that topography is continually being created and
    11·1 answer
  • What happens when an acid and alkali react
    8·2 answers
  • Which sentence describes a spontaneous redox reaction between two
    11·1 answer
  • What are the 4 chambers and what is the function of each?
    9·2 answers
  • PLEASE HELP WORTH 50 POINTS NO LINKS I WILL MARK CORRECT ANSWER BRAINLIEST!!! complete this punnet square, enter your answer in
    10·1 answer
  • The following are electronegativity. What value should be where the M is?0.981.57M2.553.043.443.98No data
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!