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When compared to the standard hydrogen electrode, zinc has a reduction potential of -0.762 volts and copper a reduction potential of + 0.342 volts. What is the reduction potential when zinc and copper are connected to one another?

+0.420 volts

-0.420 volts

+1.104 volts

-1.104 volts

Answers

Answer 1

Answer:

I'll already answered that

Explanation:

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Related Questions

What causes an earthquake?

Answers

Answer:The earths plates shifting

Explanation: The movement releases stored-up 'elastic strain' energy in the form of seismic waves, which propagate through the Earth and cause the ground surface to shake.

Some solids such as glass can be heated and cooled in order to shape them. These are?
A.) Crystalline
B.)Amorphous

Answers

Answer:

Amorphous

Explanation:

Some solids such as glass can be heated and cooled in order to shape them.

These are Amorphous.

Glass is amorphous solid (or psuedo solid or super cooled liquid)

answer for c plsssssss

Answers

Answer:

D has 18 electrons (since atomic number = protons = electrons)  

[Ne]3s² 3p⁶   (spdf electron configuration)2, 8, 8             (basic electron configuration) Argon            

E has 20 electrons    

[Ar]4s²         (spdf electron configuration)2, 8, 8, 2      (basic electron configuration)Calcium

Explanation:

In spdf form, we are basically spreading out the total number of electrons over the different spdf orbitals. While doing this we have to remember that an s-orbital holds 2 electrons max, a p-orbital holds 6 electrons max, a d-orbital holds 10 electrons max, and an f-orbital holds 14 electrons max.

Based on energy levels, the orbitals are filled in the following order:

1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, 5s, 4d, 5p, 6s, 4f, 5d, 6p, 7s, 5f, 6d, and 7p

So for example Argon with 18 electrons would be filled in the following way:  

1s², 2s², 2p⁶, 3s², 3p⁶.

This can be abbreviated using the configuration of the previous Noble gas for example [Ne] = 1s², 2s², 2p⁶

∴ we can express Argon as [Ne] 3s², 3p⁶.

what are those tiny bumps on our tongue?​

Answers

Answer:

papillae

Explanation:

Answer:

parti Ng dila sguro! hecdsjsjves

Matter is defined as anything that has blank and blank

Answers

Answer:

Matter is anything that has mass and occupies space.

An atom of mercury contains 120 neutrons in its nucleus and
80 electrons around it. It contains protons in its nucleus
and its atomic number is

Answers

Answer:

Answer: Its atomic number is 2, so it has two protons in its nucleus. (I hope this helps!)

in order for a substance to be an effective mobile phase in a chromatography experiment, it must be able to move

Answers

In order for a substance to be an effective mobile phase in a chromatography experiment, it must be able to move different components of a mixture at different rates.

Chromatography involves the separation of substances using the application of the solubility differences in them. It has two phases known as the stationary and mobile phases.

The mobile phase involves motion which is why the ability of substances to move at different rates is a great factor in this type of phase. The Stationary phase on the other hand doesn't involve movement of substances.

Read more on https://brainly.com/question/25194414

True or False: Polyatomic ions do not have a charge.


True or false: lonic compounds must have prefixes.​

Answers

Answer:

first false

second false

a boiling pot of soup with a lid on it to keep in the energy is what type of system?

Answers

Answer:

Closed system. :)

Explanation:

When the lid on the pot of soup is closed, it means matter can no longer escape, which in turn, makes it a closed system. I hope this helps, please let me know if you have any further questions

Oxit axit là nhưng oxit gì

Answers

Answer:

Là những oxit tác dụng với bazo để tạo ra muối và nước, phản ứng với nước tạo thành một axit.

Những oxit axit thường gặp: CO2, SO2, SO3, P2O5, Mn2O7.

Combustion reactions take place between fuel and oxygen and produce carbon dioxide and water. Balance
the following combustion reaction.

Answers

This is a combustion reaction of an alkane with oxygen. It is exothermic (

Δ

H

<

0

), and can be balanced in normal methods for balancing chemical equations ie ensuring that the total number of atoms of each element is the same on both sides of the equation.

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compounds that are used to reduce acidity of soil

Answers

Answer:

Pulverized Limestone

Explanation:

Hope it helps!!

The most common way to raise the pH of soil is to add pulverized limestone to the soil. Limestone acts as a soil acid neutralizer and consists of either calcium and magnesium carbonate or calcium carbonate. These are called dolomitic limestone and calcite limestone respectively.

Hope it helps!

How can you destroy the world by controlling
matter or atoms?

Answers

Answer:

Make them all gather up at the core of the Earth so it will attract everything towards it and practically just condense the planet.

But why are you even planning to do that? :/

True or false: Atoms are mostly space. *

Answers

Answer:

false

Explanation:

Atoms make up everything and are made up of protons, neutrons, and electrons.

Hoped this helped!

what phenomenon is the basis behind the ability to separate miscible liquids by distillation?

Answers

Answer:

The basis of the separation by steam distillation is that while the water and organic condensed phases are immiscible, the vapors of both are miscible. Once condensed, the two separate again allowing for an easy separation. As noted above, both liquids and solids can be distilled by steam.

Explanation:

I hope this helps!

Why does silicone dioxide have a higher melting point than sodium chloride?

Answers

[tex]\color{Black}\huge{Answer} [/tex]

It has a very high melting point as the ionic bond is very strong between them. More force is required to break down. Silicon dioxide is a giant covalent structure. It also has the highest melting point because the covalent bonds between them is the strongest.

Which color of light has the highest energy?

green


red


blue


violet

Answers

Answer:

Violet

Explanation:

It has the shortest wavelength and therefore the highest frequency.

According to scientific thought, what is a theory? O a a confirmed hypothesis O an unsubstantiated idea an interpretation supported by facts O a controversial guess

Answers

Answer:

- an interpretation supported by facts.

Explanation:

A scientific theory is a well-substantiated explanation of some aspect of the natural world, based on a body of facts that have been repeatedly confirmed through observation and experiment. Such fact-supported theories are not "guesses" but reliable accounts of the real world.

You forgot to dry the bread knife when you washed it and reddish brown spots appeared on it. is it chemistry or physical change?

Answers

Answer:

Chemical because water + metal = rust.

Explanation:

A new substance was formed.

How does Fluoroanimonic acid melt things?

Answers

Answer:s the temperature is increased, fluoroantimonic acid decomposes and generates hydrogen fluoride gas (hydrofluoric acid). ... 1  Fluoroantimonic acid has a H0 (Hammett acidity function) value of -31.3. Dissolves glass and many other materials and protonates nearly all organic compounds (such as everything in your body)

tall me is this what you looking for

What is the total number of atoms in this chemical formula?
C8H3 NaBr 12
Is the answer 12 24 25 18

Answers

Answer:

The total number of atoms in this chemical formula

C8H3 NaBr 12

8+3+1+12=24

Are two atoms of the same element identical?​

Answers

Answer

Two atoms of the same chemical element are typically not identical. ... Two atoms of the same element can be different if their electrons are in different states. If one copper atom has an electron in an excited state and another copper atom has all of its electrons in the ground state, then the two atoms are differenter:

Explanation:

What kind of reaction is NaHCO3 = Na2O + H2O + CO2

Answers

Answer:

NaHCO3 = Na2O + H2O + CO2 is a decomposition reaction.

Balanced Equation : 2NaHCO3 → Na2O + H2O + 2CO2

Which of the following led to the Middle English language of Chaucer?

American Indians' word choice and language
Anglo-Saxon tribes that came from Germany
Modern English factors after years of struggle and invasion
Normans from France who conquered the Anglo-Saxons

Answers

Answer:

i believe it the last one

Explanation:

Explain how CMB is observed on the Earth?

Answers

Answer:

the speed of light (all photons, naturally including those from the CMB, travel at the speed of light relative to you, regardless of frame or your velocity).

But I suspect you’ve asked this question because of a totally understandable but not quite correct set of assumptions about the universe. If my hunch is correct, you understand the CMB a bit like the skin of a balloon, gradually expanding over time. The Earth is a point somewhere in this balloon, and you’re asking about the Earth’s velocity relative to perhaps the center of this balloon. But that’s not quite how the universe works. It’s far more strange.

Our best hypothesis thus far is that the Big Bang happened from a single point. The “space” around us IS that single point. There is no origin point, since everywhere is by definition the origin point. You can see this for yourself by noticing that basically every star and galaxy we can see is - in the long run - moving away from us. And this is true regardless of whether you are on Earth or another star, or any point in the universe. So from this, it doesn’t really make sense to ask what the velocity of the earth is relative to the CMB rest frame, because space itself is expanding. Hopefully haven’t caused too many headaches!

Explanation:

viết các PTHH sau CuO + h20

Answers

Answer:

An oxidation-reduction (redox) reaction is a type of chemical reaction that involves a transfer of electrons between two species. In redox reaction the oxidation number of a molecule, atom, or ion changes by gaining or losing an electron.

In the reaction : CuO+H  

2

⟶Cu+H  2 O  

n the reaction H2

  is oxidized since it has lost electrons and Cu is reduced since it has gained electrons.

Explanation:

hope this helps

What type of elements are found in each group?

Answers

Group 1 of the periodic table consists of hydrogen and the alkali metals. ...

Group 2 consists of the alkaline Earth metals. ...

Groups 3–12 contain transition metals. ...

Groups 13–16 each contain at least one metalloid. ...

Group 17 contains halogens. ...

Group 18 consists of noble gases.

Answer:

Groups are numbered 1–18 from left to right. The elements in group 1 are known as the alkali metals; those in group 2 are the alkaline earth metals; those in 15 are the pnictogens; those in 16 are the chalcogens; those in 17 are the halogens; and those in 18 are the noble gases.

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Is oxygen likely to gain or lose electrons when boding? Explain.

Answers

Well Oxygen is an oxidizer, It will gain electrons in a reaction to complete its valence shell.

The word "tropical" means that the air mass is __________. *
A. warm
B. cold
C. lukewarm
D. stable

Answers

they word tropical means warm

What does a flat, horizontal line mean on a
DISTANCE-time graph?
Speeding up
Travelling at a constant speed
Not moving (motionless, stationary)

Answers

Answer:

Explanation:

A straight horizontal line on a speed-time graph means that speed is constant. It is not changing over time. A straight line does not mean that the object is not moving!

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