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
CaHeK987 [17]
3 years ago
13

An oxidation-reduction reaction involves the

Chemistry
2 answers:
nadya68 [22]3 years ago
4 0

The best answer is (3)

In these kind of reactions, there is a transfer of electrons from one reactant to another. electrons are lost from one substance and gained by another.

Oxidation is loss of electrons from a substance, and Reduction is gain of electrons  by a substance.

These two processes cannot occur without the other. If there is a reduction there must be an oxidation reaction and vice versa. The reactions  usually occur simultaneously.

For example, table salt is formed by a redox reaction. Sodium is oxidized i.e. loses an electron (and becomes positively charged) while chlorine gas is reduced i.e. gains the electron (and become negatively charged). The result is formation of sodium chloride.


Arisa [49]3 years ago
4 0
An oxidation-reduction reaction (redox) is the transfer of electrons (it's an ionic bond). So that would be number 3.
You might be interested in
How does burning affect an object's property? Burning can cause an object to increase in volume. Burning changes the chemical ma
Jobisdone [24]

Answer: Burning changes the chemical make up of an object.

Explanation:

A chemical change can be defined as a change in the substance when it combines with other kind of substance to form a new substance. A chemical change can also occur when a substance is broken down into two or more products. These changes cannot be reversed. These changes affect the physical make up of an object. For example, burning as when an object is burned it cannot be transformed into its original form. A wood if burned can be converted into ash, water and carbon dioxide cannot regain its original form after burning so burning brings about chemical change in an object.

3 0
3 years ago
Describe the physical properties of each state of matter
Leni [432]
Solid - made up of tightly packed particles, which gives it a solid shape.
Gas - made up of very loose particles, giving it more freedom to roam around as a gas
Liquid - fills into whatever it gets put in, basically takes the shape of the object its in
6 0
3 years ago
A candle slowly burns until the last bit of wax and wick are gone. The two reactants in this chemical reaction are the wick and
Aleonysh [2.5K]

The component of the candle burning in the surrounding has been the oxygen in the air.

The burning of candle wax and wick has been the chemical reaction. It has been based on the reaction of wick with the atmospheric oxygen, resulting in the formulation of the wax burning.

<h3>Chemical reaction of burning of wax</h3>

The wax has been vaporizes by the heat of the flame, that has been resulted by the burning. The wick has been able to react with the oxygen and form the byproducts that helps in flame burning.

The end products have been wick and oxygen as the wax has been consumed in the reaction. The air in the surrounding has oxygen as the part of the system, as it has been involved in the reaction.

Learn more about candle burning, here:

brainly.com/question/25955977

6 0
3 years ago
Determine the number of moles in 4.21 x 10^23 molecules of CaCI2?????
Alla [95]

Explanation:

Given parameters:

Number of molecules = 4.21 x 10²³ molecules

Unknown parameters:

Number of moles

Solution:

A mole can be defined as the amount of a substance that contains the avogadro's number of particles i.e 6.02 x 10²³

  To find the number of moles:

          Number of moles = \frac{number of molecules }{[tex]6.02 x 10^{23}}[/tex]

  Number of moles =  \frac{4.21 x 10[tex]^{23} }{6.02 x 10^{23}}[/tex]

Number of moles of CaCl₂ = 0.699moles

Learn more;

mole calculation brainly.com/question/13064292

#learnwithBrainly

8 0
3 years ago
An experiment requires that enough C3H8O be used to yield of oxygen .
blsea [12.9K]

Answer: So if you had 570 cm of ribbon, then 570%2F8.5=67.05 which means that about 67 students can do the experiment (round down to the nearest whole number).

Explanation: If you had 8.5 cm of ribbon, then only 8.5%2F8.5=1 student can do the experiment. If you had 17 cm of ribbon, then 17%2F8.5=2 students can do the experiment.

8 0
3 years ago
Other questions:
  • The mineral stibnite, antimony(III) sulfide, is treated with hydrochloric acid to give antimony(III) chloride and hydrogen sulfi
    11·1 answer
  • What elements are found in the compound represented in the diagram
    15·1 answer
  • Which statement best summarizer the importance of ernest rutherford's gold foil experiment
    11·2 answers
  • In which reaction does the oxidation number of oxygen increase? in which reaction does the oxidation number of oxygen increase?
    5·1 answer
  • What is the numerical value of KcKc for the reaction if the concentrations at equilibrium are 0.10 MM SO2SO2, 0.18 MM O2O2, and
    10·1 answer
  • Why are gamma rays not able to reflect off a mirrors surface
    5·2 answers
  • using details and examples from the text explain how the digestive system helps your body obtain the energy it needs​
    15·1 answer
  • A sample of the amino acid tyrosine is barely soluble in water. Would a polypeptide containing only Tyr residues, poly(Tyr), be
    7·1 answer
  • How many moles of carbon atoms is 7.72 x 10 ^24 atoms of carbon? Round to 2 decimal places
    8·1 answer
  • What is the color of the indicator thymol blue in a solution that has a ph of 11?.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!