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
stiv31 [10]
3 years ago
7

In a redox reaction, one of the reactants must release

Chemistry
1 answer:
Leviafan [203]3 years ago
3 0
Redox reaction is the reduction and oxidation reaction. It is a chemical reaction that involves a transfer of electrons. It can mean loss of oxygen (oxidation) or gain of electrons (reduction). Oxydation is the process of where a sustance loses electrons, gains an oxygen atom/s, loses a hydrogen atom/s.  reduction is the opposite.
In a redox reaction, one of the reactants must release electrons.
You might be interested in
A rift valley forms at a
vovikov84 [41]
D is the answer your looking for
4 0
2 years ago
What is the V2O5 coefficient??
AnnyKZ [126]

Answer:

1235

Explanation:

if thers a  a guess in that number

6 0
3 years ago
"What is the change of entropy for 3.0 kg of water when the 3.0 kg of water is changed to ice at 0"
Artyom0805 [142]

Q: What is the change of entropy for 3.0 kg of water when the 3.0 kg of water is changed to ice at 0 °C? (Lf = 3.34 x 105 J/kg)

Answer:

-3670.33 J/K

Explanation:

Entropy: This can be defined as the degree of randomness or disorderliness of a substance. The S.I unit of Entropy is J/K.

Mathematically,  change of Entropy can be expressed as,

ΔS = ΔH/T ....................................... Equation 1

Where ΔS = Change of entropy, ΔH = heat change, T = temperature.

ΔH = -(Lf×m).................................... Equation 2

Note: ΔH is negative because heat is lost.

Where Lf = latent heat of ice = 3.34×10⁵ J/kg, m = 3.0 kg, m = mass of water = 3.0 kg

Substitute into equation

ΔH = -(3.34×10⁵×3.0)

ΔH = - 1002000 J.

But T = 0 °C = (0+273) K = 273 K.

Substitute into equation 1

ΔS = -1002000/273

ΔS = -3670.33 J/K

Note: The negative value of ΔS shows that the entropy of water decreases when it is changed to ice at 0 °C

4 0
2 years ago
) Calculate the number of moles of sulfuric acid that is contained in 250 mL of 0.500 M sulfuric acid solution
maksim [4K]

Explanation:

According to the analysis, Molarity is amount mole per volume(1L). the amount in mole would be molarity × volume in litres.

0.500M × (250/1000)L= 0.125moles.

I hope this helps**

3 0
3 years ago
Which of the following would have the largest amount of mass?
Elodia [21]

Answer:

1 kg

Explanation:

prefix nano means 10^-9

kilo 10^3

mili 10^-3

centi 10^-2

the largest amount is 1 kg

7 0
2 years ago
Read 2 more answers
Other questions:
  • Ben is pushing a small trolley 10 N to the north and but Gary is pushing the trolley 5 N to the south. What is the total applied
    14·1 answer
  • Write a balanced chemical equation, including physical state symbols, for the decomposition of solid sodium azide (NaN3) into so
    10·1 answer
  • Which substance acts as the anode in the lead-acid automobile battery?
    15·1 answer
  • Explain what the horizontal and vertical lines of a Fischer Projection indicate about the structure of the molecule
    11·1 answer
  • Which of the following combinations represents an element with a net charge of +1 with a mass number of 75?a) 35 (o), 35 (+), 34
    6·1 answer
  • Calculate the average atomic mass of argon to two decimal places, given the following relative atomic masses and abundances of e
    13·1 answer
  • Ionic equation for Sr3(PO4)2 and its solubility product (Ksp)?​
    13·1 answer
  • 2H20 → 2H2 + O2<br> Type of reaction?
    6·1 answer
  • Which unit is used for measuring atomic mass?
    14·1 answer
  • 1.25 is closer to 1.04 or not ?<br> plz heelp
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!