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
mamaluj [8]
3 years ago
5

Write a balanced half-reaction describing the oxidation of aqueous chloride anions to gaseous dichlorine.

Chemistry
1 answer:
dexar [7]3 years ago
8 0
Oxidation is a process which involves losing electrons in a reaction by an ion, atom or a molecule. It happens when the oxidation state of the ion, atom or the molecule is being increased. Chloride anions has an oxidation state of -1 and dichlorine has an oxidation state of zero or neutral charge. The balanced half-reaction would be written as:

2Cl- = Cl2 + 2e-

To balance the charge on both sides, two electrons should be produced or released by the anion form of chlorine. Being oxidized would mean that the charge of the ion or molecule is being increased. In this case, it is increased from -1 to 0.
You might be interested in
What is the formula balance, using scrips for sulfur + oxygen > sulfur dioxide
Kazeer [188]

Answer: S (s) + O2 (g) => SO2 (g)

Explanation: Picture attached.

3 0
3 years ago
What mass of KNO3 would be needed to produce 18.4 liters of oxygen gas, measured at 1.50 x 10^3 kPa and 15 degrees Celsius?
Brut [27]

Answer:-

2328.454 grams

Explanation:-

Volume V = 18.4 litres

Temperature T = 15 C + 273 = 288 K

Pressure P = 1.5 x 10^ 3 KPa

We know universal Gas constant R = 8.314 L KPa K-1 mol-1

Using the relation PV = nRT

Number of moles of oxygen gas n = PV / RT

Plugging in the values

n = (1.5 x 10^3 KPa ) x ( 18.4 litres ) / ( 8.314 L KPa K-1 mol-1 x 288 K)

n = 11.527 mol

Now the balanced chemical equation for this reaction is

2KNO3 --> 2KNO2 + O2

From the equation we can see that

1 mol of O2 is produced from 2 mol of KNO3.

∴ 11.527 mol of O2 is produced from 2 x 11.527 mol of KNO3.

= 23.054 mol of KNO3

Molar mass of KNO3 = 39 x 1 + 14 x 1 + 16 x 3 = 101 grams / mol

Mass of KNO3 = 23.054 mol x 101 gram / mol

= 2328.454 grams

7 0
3 years ago
How many moles of salt will you be using in this recipe?​
user100 [1]
5 molessss booo booo
6 0
3 years ago
Which reaction would cause an increase in entropy? A. SO2Cl2(g) SO2(g) + Cl2(g) B. PCl3(g) + Cl2(g) PCl5(g) C. 2CO(g) + O2(g) 2C
IrinaVladis [17]
A. SO2Cl2(g) --> SO2(g) + Cl2(g) 
<span>1 mole of SOCl2 becomes 1 mole SO2 and 1 mole Cl2 </span>
<span>1 mole --> 2 moles </span>
<span>entropy increases </span>

8 0
3 years ago
Read 2 more answers
How do you dilute a concentrated solution?
AVprozaik [17]

Answer:

add more water

Explanation:

5 0
3 years ago
Other questions:
  • Wednesday
    12·1 answer
  • The testable question in a science investigation reads: “How does the size of a motor affect the speed of the vehicle?” What is
    7·1 answer
  • An upward force acts on a proton as it moves with a speed of 2.0 × 105 meters/second through a magnetic field of 8.5 × 10-2 tesl
    9·2 answers
  • Chemical reactions occur when molecules or atoms collide so that the bonds between atoms break and new bonds form. breaking the
    9·1 answer
  • What would happen if our atmosphere consisted of pure oxygen
    7·2 answers
  • Which is the formula for diarsenic pentoxide?<br><br> Ar2O5<br> As5O2<br> As2O5<br> 2As5O
    15·2 answers
  • Which change will decrease the number of effective collisions during a chemical reaction? A. adding a catalyst B. increasing the
    12·2 answers
  • Although each famous crater looks different, they have the same basic circular shape. Visit the Rio Cuarto craters in Argentina
    7·1 answer
  • A substance has a melting point of °C. Tom says the substance is liquid at 20 ° C. Ben says it could be liquid or gas. Explain w
    6·2 answers
  • Which of the following will affect the vapor pressure of a pure molecular substance? Select all that apply.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!