how does the path of the moon in the sky vary throughout the year

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.

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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.

Answer:

false

Explanation:

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

Hoped this helped!

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

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.

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Answer:

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

The rock layer which marks the end of the dinosaurs is: C. KT Boundary layer.

A rock can be defined as a solid material containing minerals, which are naturally formed through the following processes:

Basically, a rock comprises of various layers which marks the age of both living and nonliving organisms, these includes:

I. Burgess Shale layer.

II. Mesozoic Layer.

III. KT Boundary layer.

Dinosaurs refers to a taxa of carnivorous or herbivorous archosaurian reptiles that are often very large and belongs to the Mesozoic era.

Basically, the Mesozoic Layer is a rock layer which marks the period when dinosaurs were still roaming the earth some million years ago.

However, dinosaurs went into extinction at the KT Boundary layer and as such it is a rock layer which marks the end of the dinosaurs.

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Atoms that have the same number of valence electrons (belong to the same group of the periodic table) have similar properties. Hydrogen and Helium are exceptions.  The first shell is filled with 2 electrons which makes Helium a Noble Gas and Hydrogen is a gas thus not a Group 1 metal.

The given atom has 2 valence electrons (a group 2 element).

∴ the atoms with similar properties to that of the given atom would also have 2 valence electrons:

I - filled 1st shell thus noble gas ❌

II - 3 valence electrons ❌

III - 4 valence electrons ❌

IV - 2 valence electrons ✅

Checking my answer:

If we check the periodic table, the atom given is Be (Alkali Earth Metal)

I is He  (Noble Gas)

II is Bo (Group 13)

III is C (Group 14)

IV is Magnesium (Alkali Earth Metal)

Answer:

False

Fossil fuels add carbon dioxide to the atmosphere not oxygen

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.

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

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:

Pulverized Limestone

Explanation:

Hope it helps!!

Answer:

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

Explanation:

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The Correct choice is : C

Athlete's foot is one of the common disease caused by a fungus !

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:

Answer:

Amorphous

Explanation:

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

These are Amorphous.

Answer:

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Answer:

The total number of atoms in this chemical formula

C8H3 NaBr 12

8+3+1+12=24

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Answer:

papillae

Explanation:

Answer:

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Answer:

the value of water is

6000

Answer:

600 or 6000 I'm not sure

Answer:

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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.

Answer:

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

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

Elements in the same group have similar properties because their electron configurations are similar. In particular they have the same number of valence electrons, which are the in the outermost (highest energy) s and p orbitals.

Chlorine reacts in a similar way to bromine as they belong to same group of periodic table.

Reactivity in chemistry is indeed a measurement of how easily a material reacts chemically. The chemical may react alone or in conjunction with neighboring atoms as well as compounds, and in either case, energy will typically be released. The most reactive substances and elements have the potential to spontaneously or explosively ignite.

Since bromine and chlorine electron configurations are similar, elements of the same group exhibit comparable characteristics. The amount of valence electrons, that are located inside this outermost (highest energy) p and s orbitals is particularly similar.

Therefore, chlorine reacts in a similar way to bromine as they belong to same group of periodic table.

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Answer:

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

E has 20 electrons    

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.

Answer:

Explanation:

Pick up a soft drink. The CocaCola I have has 8 ingredients and is a mixture. Mind you, it is hard to tell what kind of sugar is present because three are listed.

It certainly has more than 2 ingredients.

Answer: k = 5

Explanation:

k = the number of units that f(x) was moved up to get g(x).

We can see from the graph that f(x) was moved five units up.

So k = 5.

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