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tekilochka [14]
3 years ago
15

When a compound is oxidized it ______ one or more electrons; whereas when a compound is reduced it _____ one or more electrons?

Chemistry
2 answers:
MatroZZZ [7]3 years ago
7 0
Oxidation:-  it loses electrons

Reduction:-  it gains electrons
creativ13 [48]3 years ago
6 0

Answer:

"When a compound is oxidized it loses one or more electrons; whereas when a compound is reduced it gains one or more electrons"

Explanation:

Oxidation-reduction reactions or redox reactions are those in which an electron transfer occurs between the reagents. An electron transfer implies that there is a change in the number of oxidation between the reagents and the products.  Remember that the oxidation number is defined as the charge that an atom would have if the electrons in the bond were assigned to the most electronegative element.

The gain of electrons is called reduction and the loss of electrons oxidation. That is to say, there is oxidation whenever an atom or group of atoms loses electrons (or increases its positive charges) and in the reduction an atom or group of atoms gains electrons, increasing its negative charges or decreasing the positive ones.

The species that supplies electrons is the reducing agent (that is, it is that species that oxidizes, yielding electrons and increasing its positive charge, or decreasing the negative one causing the reduction of the other species) and the one that gains them is the oxidizing agent ( that is, it is that species that is reduced, capturing electrons and increasing its negative charge, or decreasing its positive charge, causing oxidation of the other species).

Electron donors are called reducers; Electron acceptors are called oxidants.

This is why these reactions are called oxidation-reduction reactions. In them there is a transfer of electrons from the oxidizing substance to the one that is reduced.

A redox system or redox pair is formed by an oxidant or its conjugate reducer. For a redox reaction to take place, two semi-reactions or redox systems are needed. Oxidation and reduction take place at the same time, this is at the same time. It cannot happen without the other.

Taking into account all the above definitions, it is possible to say that <u><em>"When a compound is oxidized it loses one or more electrons; whereas when a compound is reduced it gains one or more electrons"</em></u>

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Answer:

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3 years ago
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What is the density of an 84.7 g sample of an unknown substance if the sample occupies 49.6cm cubed
Ahat [919]

Answer:

             1.70 g.cm⁻³

Solution:

Data Given;

                   Mass  =  84.7 g

                   Volume  =  49.6 cm³

                   Density  =  ?

Formula Used;

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Putting values,

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7 0
3 years ago
A student is instructed to make 1 L of a 2.0 M solution of CaCl2 using dry salt. How should he do this?
Pachacha [2.7K]
<span>The student should follow following steps to make 1 L of </span>2.0 M CaCl₂.<span>
<span>
1. First he should calculate the number of moles of 2.0 M CaCl</span></span>₂ in 1 L solution.<span>

</span>Molarity of the solution = 2.0 M<span>
Volume of solution which should be prepared = 1 L

Molarity = number of moles / volume of the solution

Hence, number of moles in 1 L = 2 mol

2. Find out the mass of dry CaCl</span>₂ in 2 moles.<span>

moles = mass / molar mass

Moles of CaCl₂ = 2 mol</span><span>
Molar mass of CaCl₂ = </span><span>110.98 g/mol

Hence, mass of CaCl</span>₂ = 2 mol x <span>110.98 g/mol
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3. Weigh the mass accurately 

4. Then take a cleaned and dry1 L volumetric flask and place a funnel top of it. Then carefully add the salt into the volumetric flask and finally wash the funnel and watch glass with de-ionized water. That water also should be added into the volumetric flask.

5. Then add some de-ionized water into the volumetric flask and swirl well until all salt are dissolved.

<span>6. Then top up to mark of the volumetric flask carefully. 
</span>
</span>
7. As the final step prepared solution should be labelled.
4 0
3 years ago
Draw the aromatic compound toluene (methylbenzene). show all hydrogen atoms, including those on the ring.
Otrada [13]

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Here number of pi electron are 6, where 4 from two double bond and 2 from nitrogen non-bonding electrons, hence it has total 6 pi electrons, therefore

6= ( 4n+2)π

4 = 4n  

n =1

 

Hence it is an aromatic compound  

 


7 0
3 years ago
What might law enforcement do to reduce attempts at deception when gaining a handwriting sample?
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3 0
3 years ago
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