rusting of iron can be prevented by wrapping iron articles in newspaper true or false​

Answers

Answer 1

false, the rusting of iron can be prevented by painting, oiling, greasing or varnishing its surface.


Related Questions

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!)

which kind of change alters the shape of an object without changing what type of matter it isITS RIELLY SCIENCE

Answers

Answer:

Ice carving. It's still ice, it's not water, and it changes shape while not changing it's matter

Explanation:

what is the amount of heat required to completely melt a 200?

Answers

The answer is 6680 J

(BRAINLIEST)
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!

helpppppppppppppppppp​

Answers

Answer:

whyyyy?what happened hmmmm hahahahahhajajaha

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.

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

Answers

they word tropical means warm

convert 2 butanol to 2 nitrobutane​

Answers

The conversion of 2 - butanol to 2 - nitrobutane​ involves conversion of  2 butanol to 2 - bromobutane and subsequently to 2 - nitrobutane.

In order to convert 2 - butanol to 2 - nitrobutane​, an SN2 reaction is first carried out in which 2 - butanol  is converted to 2 - bromobutane. This reaction proceeds with inversion of configuration at the chiral carbon as expected.

This product is subsequently reacted with silver nitrite in ethanol to yield  2 - nitrobutane​ along side silver bromide. Some alkyl nitrite is also produced as a by product. The components of the mixture are separated by fractional distillation. The scheme of the reaction is shown in the image attached to this answer. This reaction is only applied to primary and secondary alkyl halides.

Learn more: https://brainly.com/question/10079361

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!

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!

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 are those tiny bumps on our tongue?​

Answers

Answer:

papillae

Explanation:

Answer:

parti Ng dila sguro! hecdsjsjves

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!

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:


How
does learning about organs help us understand
how organ systems work?

Answers

Answer: Just as the organs in an organ system work together to accomplish their task, so the different organ systems also cooperate to keep the body running. For example, the respiratory system and the circulatory system work closely together to deliver oxygen to cells and to get rid of the carbon dioxide the cells produce.

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

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 kind of reaction is NaHCO3 = Na2O + H2O + CO2

Answers

Answer:

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

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

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.

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

Clouds are named for 3 different attributes including shape, _____________ & precipitation. *

A. size
B. color
C. elevation
D. smell

Answers

Answer:

color is there right answer for this question please make me a brainliest and follow me please please please please

Shape, COLOR, precipitation

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.

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


True or false: lonic compounds must have prefixes.​

Answers

Answer:

first false

second false

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)

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.

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.

True or false: There is space between molecules in a mixture

Answers

There is always space between molecules to the answer is True.

The statement "There is space between molecules in a mixture" is true.

What is a mixture?

A mixture is made up of mixing two or more substances. These mixtures are not mixed chemically, but physically. Both homogeneous and heterogeneous mixtures are possible.

A combination of two or more unrelated substances that is not the result of the chemical fusion is referred to as a mixture. They could be gases, liquids, or solids. The component of a mixture can be easily separated.

A mixture might consist of ingredients in the same phase as one another or in distinct phases. A mixture is homogeneous if the constituent parts are mixed at the same period. A mixture is heterogeneous if it is made up of components that are in different phases.

Thus, the statement is true.

To learn more about mixture, refer to the link:

https://brainly.com/question/24898889

#SPJ2

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

Why does a warm front usually bring a light and steady rain?

Answers

Warm front Forms when a moist, warm airmass slides up and over a cold air mass. As the warm airmass rises, it condenses into a broad area of clouds. A warmfront brings gentle rain or light snow, followedby warmer, milder weather.

Mark as brainlist please
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