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
ExtremeBDS [4]
3 years ago
11

What happens to a reducing agent during a redox reaction?

Chemistry
1 answer:
Nuetrik [128]3 years ago
7 0
Reducing agent is an compound/atom, that loses an electron and is oxidized.

0.........+I.............+II............0
Ca + 2HCl ----> CaCl₂ + H₂

Calcium is oxidized --- it's reducing agent (reductant).
Hydrogen is reduced --- HCl is oxidizing agent.
You might be interested in
For the equilibrium that exists in an aqueous solution of nitrous acid (HNO2, a weak acid), the equilibrium constant expression
Novosadov [1.4K]

Answer:

a. K = [H+][NO2-]/[HNO2]

Explanation:

The computation of the expression of the equilibrium constant is shown below:

Given that the weak acid is HNO_2 that exist in the solution that aqueous

The dissociation equation of HNO_2

HNO_2(aq) \rightarrow NO_{2}^{-} (aq) + H^{+}(aq)

Now

Acidionization constant i.e.

k_a = \frac{[NO_{2}^{-}][H^{+}]}{HNO_{2}}

Therefore the correct option is a.

Hence, the same is to be considered

8 0
3 years ago
Some common substances and their chemical formulas are listed in the chart.
vesna_86 [32]

Answer:

We heart you don't have all the information you just got some common substances and their chemical formulas are listed in the chart? That we don't have the chart to see which of the substances are elements

Explanation:

sorry about that if you can take a picture of it and repost it I am sure I could answer it for you

8 0
2 years ago
Given the following reactions 2S (s) + 3O2 (g) → 2SO3 (g) ΔH = -790 kJ S (s) + O2 (g) → SO2 (g) ΔH = -297 kJ the enthalpy of the
Trava [24]

Answer:

-196 kJ

Explanation:

By the Hess' Law, the enthalpy of a global reaction is the sum of the enthalpies of the steps reactions. If the reaction is multiplied by a constant, the value of the enthalpy must be multiplied by the same constant, and if the reaction is inverted, the signal of the enthalpy must be inverted too.

2S(s) + 3O₂(g) → 2SO₃(g)  ΔH = -790 kJ

S(s) + O₂(g) → SO₂(g)         ΔH = -297 kJ (inverted and multiplied by 2)

2S(s) + 3O₂(g) → 2SO₃(g)  ΔH = -790 kJ

2SO₂(g) → 2S(s) + 2O₂(g)   ΔH = +594 kJ

-------------------------------------------------------------

2S(s) + 3O₂(g) + 2SO₂(g) → 2SO₃(g) + 2S(s) + 2O₂(g)

Simplifing the compounds that are in both sides (bolded):

2SO₂(g) + O₂(g) → 2SO₃(g) ΔH = -790 + 594 = -196 kJ

4 0
3 years ago
In the reaction A + B C, doubling the concentration of A doubles the reaction rate and doubling the concentration of B does not
Kitty [74]
Here, the rate of reaction would be: rate = k[A]

In short, Your Answer would be Option D

Hope this helps!
6 0
3 years ago
Summarize the process of alcoholic fermentation in yeast
AysviL [449]

Alcoholic fermentation is mainly used by various yeast species to make energy.

If there is no oxygen available, the yeasts have in the alcoholic fermentation another possibility of energy supply. But they can - as compared with cellular respiration - recover substantially less energy from glucose, in the form of adenosine triphosphate (ATP): by complete oxidation, a molecule of glucose provides 36 molecules of ATP, but by alcoholic fermentation only 2 molecules of ATP. These two molecules are obtained in glycolysis, the first step in the chain of reactions for both cellular respiration and fermentation.

The two additional steps of the fermentation, and thus the production of ethanol serve not to make energy, but the regeneration of the NAD + cofactor used by the enzymes of glycolysis. As NAD + is available in limited quantities, it is converted by the NADH reduced state fermentation enzymes to the NAD + oxidized state by reduction of acetaldehyde to ethanol.

6 0
3 years ago
Other questions:
  • Decide whether each molecule or polyatomic ion is polar or nonpolar. If the molecule or polyatomic ion is polar, write the chemi
    5·1 answer
  • You are looking at the inside of a cell. explain how you can tell wether the cell is animal or plant
    11·1 answer
  • Coffee with sugar dissolved in it is an example of a water­based solution. the hot water of the coffee is the __________________
    10·1 answer
  • What is a Hypothesis?
    14·1 answer
  • Why sodium is active element...​
    8·2 answers
  • Draw a resonance structure, complete with all formal charges and lone (unshared) electron pairs, that shows the resonance intera
    7·1 answer
  • PLZZZ HELP. Just say yellow goes under ..... for example.
    5·1 answer
  • You place a ton of radioactive material into a lead box and close the box.
    6·1 answer
  • Name two metals which will not liberate hydrogen from<br>dilute tetraoxosulphate(vi) acid.​
    15·1 answer
  • 1. How many atoms of chlorine are present in 1.70x1023 molecules Cl2?​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!