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
sashaice [31]
3 years ago
10

The half-reaction occurring at the anode in the balanced reaction shown below is ________. 3mno4- (aq) + 24h+ (aq) + 5fe (s) → 3

mn2+ (aq) + 5fe3+ (aq) + 12h2o (l)
Chemistry
1 answer:
alexgriva [62]3 years ago
3 0
Reduction takes place in cathode while oxidation takes place at the anode.
Given that the reaction 3MnO4- +24H + +5Fe→3Mn+2+5Fe+3+12H2O
Now that oxidation is termed as an increase in oxidation number or loss of electrons while reduction is a decrease in oxidation number and gain of electrons,
∴oxidation will be
Fe→Fe +3+3e-
reduction will
MnO4- +8H+ →Mn+2+4H2O
If oxidation takes place at anode then Anode: an oxidation reaction
Fe→Fe+3+3e- . Then the answer is 
Fe(s)→Fe+3(aq)+3e-
You might be interested in
How many grams of fluorine are contained in 8 molecules of boron trifluoride?
Lelu [443]
<h3>Answer:</h3>

             7.57 × 10⁻²² g of F

<h3>Solution:</h3>

Data Given:

                 Number of Molecules  =  8

                 M.Mass of BF₃ =  67.82 g.mol⁻¹

                 Mass of Fluorine atoms  =  ?

Step 1: Calculate Moles of BF₃

           Moles  =  Number of Molecules ÷ 6.022 × 10²³ Molecules.mol⁻¹

Putting value,

            Moles  =   8 Molecules ÷ 6.022 × 10²³ Molecules.mol⁻¹

            Moles  =  1.33 × 10⁻²³ mol

Step 2: Calculate Mass of BF₃:

                   Moles  =  Mass ÷ M.Mass

Solving for Mass,

                   Mass  =  Moles × M.Mass

Putting values,

                   Mass  =  1.33 × 10⁻²³ mol × 67.82 g.mol⁻¹

                   Mass  =  9.0 × 10⁻²² g

Step 3: Calculate Mass of Fluorine Atoms:

As,

                         67.82 g BF₃ contains  =  57 g of F

So,

                    9.0 × 10⁻²² g will contain  =  X g of F

Solving for X,

                       X =  (9.0 × 10⁻²² g × 57 g) ÷ 67.82 g

                        X  =  7.57 × 10⁻²² g of F

4 0
3 years ago
Read 2 more answers
Which of the following elements belong to the same pair?
butalik [34]

Answer:

B. Na and Li

Both are group I elements.

5 0
2 years ago
I need help on this plsss
Firlakuza [10]

Answer:

An engine that creates ignites fuel with highly compressed air.

6 0
3 years ago
Read 2 more answers
What is the pressure of a sample of gas at a volume of .335 L if it occupies 1700 mL at 850 mm Hg?
dangina [55]

Answer:

Pressure = 4313.43mmHg

Explanation:

P1 = ?

V1 = 0.335L

V2 = 1700mL =1700*10^-3L = 1.7L

P2 = 850mmhg

From Boyle's law, the volume of a fixed mass of gas is inversely proportional to its pressure provided that temperature remains constant.

P = k / v

K = pv. P1V1 = P2V2 = P3V3 =........=PnVn

P1V1 = P2V2

Solve for P1,

P1 = (P2*V2) / V1

P1 = (850 * 1.7) / 0.335

P1 = 4313.43mmHg

The pressure of the gas was 4313.43mmHg

7 0
3 years ago
The lower your salary, the less efficient you are. This represents a ______
creativ13 [48]

Answer:

I believe that it is a negative correlation

7 0
2 years ago
Read 2 more answers
Other questions:
  • How many moles of CO2 are produced when 35.0 mol C2H2 react completely?
    8·1 answer
  • Sometimes when performing a crystallization, one solvent alone will not work and you have to use a solvent-pair. Will the solven
    7·1 answer
  • What is the empirical formula of a compound consisting of 29.6% oxygen and 70.4% fluorine by mass?
    10·2 answers
  • Suppose you have three monodisperse polymer samples, A, B, and C, with molar masses of 100,000 g/mol, 200,000 g/mol, and 300,000
    7·1 answer
  • When wind drops its load of sand,it can form a hill called
    11·1 answer
  • Latitude plays a major role in determining the climate, or long-term weather patterns, of an area. Because of differences in the
    14·1 answer
  • Neutrons released in a fission reaction can strike other nuclei and cause
    14·1 answer
  • What conclusion can be made about the solubility of nickel (II)
    11·1 answer
  • Is the ability of a substance to reflect light a chemical property
    14·2 answers
  • You start out with 800 moles of a radioactive substance. After 24 hours, 100 moles remain. What is the half-life of the substanc
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!