Identify the following equation: H2 - 2H+ + 2e
A. oxidation
B. reduction
C. redox
D. none of the above

Answers

Answer 1

Answer:

(A.) H2 --> 2H+ 2 e- (oxidation)

Explanation:

A. oxidation is the removal of electron(s) from a substance. This is the case here, since AFTER the reaction you can see that there were electons "removed" from H2.

H2 --> 2H+ 2 e- (oxidation)

B. reduction is the addition of electron(s) to a substance

1/2 O2 + 2 e- + 2H+ --> H2O (reduction)

By the way:

Biochemical reactions often involve the transfer of complete hydrogen atoms, meaning an electron and a proton.

The substance oxidized (H2) is electron donor.

The substance reduced (O2) is electron acceptor.

Just remember this:

Prior to the reaction, the e donor is always reduced.

Prior to the reaction, the e acceptor is always oxidized.


Related Questions

When a ball is tossed upward, along the way
A. the amount of kinetic energy and the amount of potential energy change
B. all of its energy is lost to friction with the air, and both kinetic and potential energy are zero at the highest point of travel.
C. its potential energy decreases and reaches zero at the highest point of travel D. its total energy increases and is at a maximum at the highest point of travel

Answers

Answer:

A

Explanation:

going upward, kinetic energy decrease and potential energy increase

Answer:

A

Explanation:

As a ball is thrown into the sky, potential energy increases and kinetic energy decreases. But, the mechanical energy ( that is the sum of the potential and kinetic energy) remains the same....

9) Who was right about the atom, Bohr or Schrodinger?

Answers

Answer: Schrodinger

Explanation: because Schrodinger used mathematical equations to describe the likelihood of finding an electron in a certain position. This atomic model is known as the quantum mechanical model of the atom.

Schrodinger because Bohr's model was not completely correct, but it has many features that are approximately correct and it is sufficient for much of our discussion.

A negative test charge experiences a force to the right as a result of an electric field. Which is the best conclusion to draw
based on this description?
The electric field points to the left because the force on a negative charge is opposite to the direction of the field,
The electric field points to the right because the force on a negative charge is in the same direction as the field,
No conclusion can be drawn because the sign of the charge creating the field is unknown,
No conclusion can be drawn because the amount of charge on the test charge is unknown.

Answers

Answer:a

Explanation:

Answer: ( A )

Explanation: the answer is a

how does force do positive work on an object?​

Answers

Answer:

It can do work on an object by moving it or changing it.

Explanation:

Brainliest?

Answer:

If you push on an object, thats positive work but if you pull on the object, thats negative work

Explanation:

Plz help! Will give brainiest!

For the girl to lift this rock, she must push her end down _____ to raise the rock _____.

A. a lot; a little
B. a little; a lot
C. a little; a little

Answers

Answer:

A is the correct answer

Explanation:

mark brainliest please

Static electricity is an excess of neutrons.
A True
B. False

Answers

The answer is false

Answer: Static electricity is an excess of neutrons-FALSE

Explanation:

A P E X

Please have a look at the image

Answers

Answer:

a

Explanation:

a. zero is the answer...

(05.03 MC)

The color of four stars is shown in the table below.



Color of Stars
Star Color
W Yellow
X White
Y Blue
Z Orange
What is the correct order of the surface temperature of the stars, starting from the highest to the lowest?

Group of answer choices

Y, Z, W, X

X, W, Z, Y

Y, X, W, Z

Z, W, X, Y

Answers

Answer:

C is correct

Explanation:

The order of the surface temperature of the stars, starting from the highest to the lowest is Y > X > W > Z.

What is Wien's displacement law ?

Wien's displacement law states that, the black-body radiation curve for different temperatures will have different peaks of wavelengths and the wavelength is inversely proportional to the surface temperature.

Here,

According to Wien's displacement law,

The wavelength of the star is inversely proportional to its surface temperature.

λ [tex]\alpha[/tex] 1/T

where T is the surface temperature.

Therefore, the star with lowest wavelength will have the highest surface temperature.

Consider the wavelengths of each stars given,

The increasing order of their wavelengths can be written as,

λ(Orange) > λ(Yellow) > λ(White) > λ(Blue)

Therefore the increasing order of their surface temperatures will be,

T(Blue) > T(White) > T(Yellow) > T(Orange)

Hence,

The order of the surface temperature of the stars, starting from the highest to the lowest is Y > X > W > Z.

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Somebody can tell me what answers it is?

Answers

Answer:

D

Explanation:

The color you see is the color the object reflectes. The rest of the color are absorbed by that object.

Isn’t it all colors are absorbed except red? OK I’M NOT THE BRIGHTEST SO

Please help! I'll mark you as branliest!!! :)

Answers

Answer:

pretty sure its C, Radiation because the sun produces radiation

Explanation:

Answer: conduction

Explanation:

The sand is directly transferring heat to the people. They are touching, so it would be an example of conduction.

Please help.
To which 2 systems does the heart belong:
A. Circulatory system and Respiratory system
B. Circulatory system and Muscular system
C. Circulatory system and digestive system
D. Circulatory system and Reproductive system

Answers

Answer:

A

Explanation:

circulatoy system and respiratory

Answer:

A

Explanation:

;3

The distance from the maximum disturbance to the undisturbed position is the____ of a wave

Answers

Answer:

The amplitude of a wave is its maximum disturbance from its undisturbed position


In a nuclear fusion reaction, the mass of the products is _____ the mass of the reactants.

Answers

Answer:

more than

Explanation:

In a nuclear fusion reaction, the mass of the products is more than the mass of the reactants.

What can happen if the excretory system doesn't work properly ?

Answers

Kidney failure may lead to permanent loss of kidney function.

What do snow melting, water freezing to ice, and water boiling into steam have in
common? *
O
They involve a change in state.
They involve a change in temperature.
O
They involve a change in thermal energy.
All of the above are true.​

Answers

Answer:

All of the above.

Explanation:

All of the above is the answer!

Which of the following is a homogenous mixture?

Answers

Answer:

Blood

Explanation:

Homogenous means the same type and a box with toys, spaghetti and meatballs, and trail mix all have variety.

Answer:

B is the correct answer

As SCUBA divers go deeper underwater, the pressure from the weight of all the water above them increases tremendously which compresses the gases in their blood. What happens to the volume of gas in their blood as the diver rises quickly to the surface?



A.
As a diver rises, the pressure on their body decreases which allows the volume of the gas to decrease.

B.
As a diver rises, the pressure on their body increases which allows the volume of the gas to decrease.

C.
As a diver rises, the pressure on their body decreases which allows the volume of the gas to increase.

D.
As a diver rises, the pressure on their body increases which allows the volume of the gas to increase.

Answers

Answer: A.

As a diver rises, the pressure on their body decreases which allows the volume of the gas to decrease.

Explanation:

The problem is that a diver, experiences an increased pressure of water compresses nitrogen and more of it dissolves into the body. Just as there is a natural nitrogen saturation point at the surface, there are saturation points under water. Those depend on the depth, the type of body tissue involved, and also how long a diver is exposed to the extra pressure. The deeper a diver go, the more nitrogen the body absorbs.

The problem is getting rid of the nitrogen once you ascend again. As the pressure diminishes, nitrogen starts dissolving out of the tissues of the diver's body, a process called "off-gassing." That results in tiny nitrogen bubbles that then get carried to the lungs and breathed out. However, if there is too much nitrogen and/or it is released too quickly, small bubbles can combine to form larger bubbles, and those can do damage to the body, anything from minor discomforts all the way to major problems and even death.

At what point in a waterfall, do the drops of water contain the most gravitational potential energy?

Answers

Answer:

The water above receives energy as it falls down the short waterfall. This energy was stored as potential energy in the gravitational field of the Earth and came out of storage as the water dropped. This energy which came out of the gravitational field ended up being expressed as the kinetic energy of the water. That is, the water gains kinetic energy as it drops. An ounce of water is going faster when it hits the bottom of the waterfall than it was when it went over the top of the waterfall

Explanation:

The drops of water contain the most gravitational potential energy at the top before they start falling.

At the top of the waterfall

Gravitation

At the top of the waterfall, the water drops have the most gravitational potential energy before they start falling as the water at the peak of the waterfall is higher in the Earth's gravitational field and has gravitational potential energy. The potential energy is converted to kinetic energy when it falls. As a result, energy is not created; it was always there, stored as potential energy.

Potential energy is energy that is stored and is determined by the relative positions of various pieces of a system. Kinetic energy is the energy that an item or particle has as a result of its movement.

Find out more information about energy here:

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When a current flows through a light bulb, it emits 30 J light energy in 2 seconds, What is the power of the bulb?

Answers

I believe the answer is P= 15w

The power of the light bulb is 15 watts.

What is power ?

Power in physics is defined as the rate of energy per unit time or in other words the work done by any electrical appliance per unit time. Power is expressed as -

P = E/T where E is Energy and T is the time period.

How to calculate the value of power in the question ?

Given that the light bulb emits 30 J light energy in 2 seconds.

We have E = 30J and T = 2 seconds.

Therefore power(P) = Energy(E) / Time(T)

∴  P = 30 / 2 = 15 watts

Thus the power of the light bulb is 15 watts.

To learn more about power in physics, refer -

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A Physics question regarding circuits and electricity.

Answers

Assuming all three bulbs are connected properly with their conductivity creating a circuit, if one is unscrewed all bulbs would shut off causing zero emission of light to be displaced. Meaning answer D would be the closest to the right response.

Hope this helps! :)

A wave that is traveling toward an interface is called the...??

Answers

Answer:

Surface wave

Eg ocean wave

Surface wave. Is the answer

the magnification priduced by a spherical mirror is +1/4.what type of image is formed?

Answers

Explanation:

As the magnification is positive , thus the image formed is inverted and real

Answer fast, please.


Answers

D bomb b j de violence

What is the velocity of a wave that has a frequency of 400 Hz and a wavelength of 0.5 meters?

Answers

Answer:

4.2

Explanation:

What is the resistance of a 6.0 m long gold wire (ρgold = 5.6 x 10 -8 Ω-m) whose cross-sectional area is 5x10 -7m 2 ? (Please show some work)

Answers

Answer:

R =0.672 ohms

Explanation:

We have,

Length of a gold wire is 6 m

Resistivity of gold is [tex]5.6\times 10^{-8}\ \Omega-m[/tex]

Area of cross section of the wire is [tex]5\times 10^{-7}\ m^2[/tex]

The resistance of a wire is given by the relation as follows :

[tex]R=\rho\dfrac{l}{A}\\\\R=5.6\times 10^{-8}\times \dfrac{6}{5\times 10^{-7}}\\\\R=0.672\ \Omega[/tex]

So, the resistance of the gold wire is 0.672 ohms.

A car veers off course and runs straight into a brick wall. This is an example
of which of the following?
A. long time, large force
B. long time, small force
C. short time, small force
D. short time, large force

Answers

Short time large force

Answer:

Short time large force

Which is a true statement?


A.
Valence electrons play a key role in chemical reactions.


B.
The properties of elements in a group are identical.


C.
Hydrogen contains multiple valence electrons.

Answers

Answer:

C

Explanation:

At t = 0, a car has a speed of 30.0 m/s. At t=6.00 s, its velocity is 12.0 m/s.
What is its average acceleration during this interval? plz help...​

Answers

Answer: [tex]-3m/s[/tex]

Explanation:

[tex]a=\frac{V_2-V_1}{t}[/tex]

[tex]a=\frac{12-30m}{6s}\\a=-\frac{18m}{6s}\\ a=-3m/s[/tex]

We have a negative acceleration, meaning that the car is slowing down.

Which factors affect the speed of ocean waves?

Answers

Answer:

The speed of all ocean waves is controlled by gravity, wavelength, and water depth. Most characteristics of ocean waves depend on the relationship between their wavelength and water depth. Wavelength determines the size of the orbits of water molecules within a wave, but water depth determines the shape of the orbits

Explanation:

PLEASE GIVE ME BRAINLIEST

Which are descriptions of gravity on Earth? Check all that apply.

an attractive force
a repulsive force
a noncontact force
a contact force
a horizontal force
a vertical force

Answers

Answer:

an attractive force

a noncontact force

a vertical force

Explanation:

Gravitational force is a NON-CONTACT FORCE. Gravitational force acts on all bodies on the earth that have mass. The force which is exerted through weight acts on the center of gravity of the body. The force is directed towards the center of the earth. The weight of a body is the gravitational force exerted by the earth on the body.

A,C,F.

Explanation: Got it correct.

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