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
soldier1979 [14.2K]
2 years ago
5

Which of the following is an oxidation-reduction reaction? so2(g) h2o(l) right arrow. h2so3(aq) caco3(s) right arrow. cao(s) co2

(g) ca(oh)2(s) h2co3(l) right arrow. caco3(aq) 2h2o(l) c6h12o6(s) 6o2(g) right arrow. 6co2(g) 6h2o(l)
Chemistry
2 answers:
Gennadij [26K]2 years ago
7 0

The reaction which shows oxidation and reduction simultaneously is C₆H₁₂O₆(s) + 6O₂(g) → 6CO₂(g) + 6H₂O(l).

<h3>What are redox reactions?</h3>

Those reaction in which oxidation as well as reduction of substances takes place simultaneously will known as redox reactions.

  • SO₂(g) + H₂O(l) → H₂SO₃(aq)
  • CaCO₃(aq) → CaO(s) + CO₂(g)
  • Ca(OH)₂(s) + H₂CO₃(l)  CaCO₃(aq) + 2H₂O(l)

Above reaction are not the redox reactions as in these reaction oxidation and reduction simultaneously not takes place.

  • C₆H₁₂O₆(s) + 6O₂(g) → 6CO₂(g) + 6H₂O(l)

In the above reaction reduction of oxygen takes place as its oxidation state changes from 0 to -2, and at the same time oxidation of carbon takes place as its oxidation state changes from 0 to +4.

Hence correct option is (4).

To know more about redox reactions, visit the below link:
brainly.com/question/7935462

expeople1 [14]2 years ago
4 0

Answer:

correct option is (4).

Explanation:

You might be interested in
Please help
Snezhnost [94]
Relatively few hydrogen atoms
5 0
3 years ago
Which of these is an example of a physical change?
vladimir2022 [97]

Answer:

Their isn't your examples but I will give you mine

Freezing, Evaporation and so on.

6 0
2 years ago
Which statement correctly distinguishes photosynthesis and respiration?
blondinia [14]

Answer:

photosynthesis uses light as energy source,and cell respiration uses chemical energy

4 0
2 years ago
What is a redox reaction?
Novay_Z [31]
An oxidation-reduction (redox<span>) </span>reaction<span> is a type of chemical </span>reaction<span> that involves a transfer of electrons between two species. An </span>oxidation<span>-reduction </span>reaction<span> is any chemical </span>reaction<span> in which the </span>oxidation<span> number of a molecule, atom, or ion changes by gaining or losing an electron</span>
7 0
3 years ago
Read 2 more answers
C. CaCl2 can be melted to produce calcium metal and give off chlorine gas. The equation for this
galben [10]

Answer:

Total gram of Ca = 99.26 g

Explanation:

Given:

Mass of CaCl₂ = 277.45 g

Find:

Mass of Ca

Computation:

Ca = 40 g/mol

Cl₂ = 2 (35.5) g/mol = 71 g/mol

Total CaCl₂ = 111 g/mol

Total gram of Ca = [40 / 111] 277.45 g

Total gram of Ca = 99.26 g

5 0
3 years ago
Other questions:
  • The freezing point of camphor is 178.4�c and its molal freezing point depression constant (kf) is 37.7�c�kg/mol. how many grams
    12·1 answer
  • MARK THE EXTENSIVE PROPERTIES(Check that all apply)
    6·1 answer
  • The reaction of 9.50 g of carbon with Excess O2 Yield 12.8 of CO2. What is the percent yield of this reaction?
    9·1 answer
  • One mole of silver has a mass of 107.9 grams. Approximately how many atoms of silver are present in one mole of silver?
    8·2 answers
  • "Don't use such phrases here, not cool! It hurts our feelings :( "
    10·2 answers
  • The particles of a substance lose energy and change from
    10·1 answer
  • Which is not true of atoms?
    14·1 answer
  • The heat of vaporization for water is 40.7 kJ/mol. How much heat energy must 150.0 g of water absorb to boil away completely? Us
    12·1 answer
  • When electrical ___ betweens protons is greater than strong forces, the nucleus will be unstable.
    9·1 answer
  • A
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!