during the electrolysis of cryolite ,aluminium and fluorine are formed in.......molar ratio​

Answer:

the eye socket

Explanation:

the area around the eye is called the eye socket or the eye orbit.

there should be less liquid at the end of the experiment since heating liquid is an endothermic process, and endothermic processes typically break the bonds between liquids. The applied heat would soon break the bonds that hold the molecules of the liquid together, and evaporation would occur once the temperature is hot enough. Thus, the evaporated water would decrease the volume of the liquid.

Answer:

nNaOH = 0,2 mol

Trong hỗn hợp các chất đề bài cho chỉ có phenol tác dụng với NaOH

C6H5OH + NaOH → C6H5ONa + H2O

   0,2  ←     0,2 (mol)

⟹ mphenol = 0,2.94 = 18,8 gam

⟹  

%mC6H5OH=18,8/28,9 x100%= 65,05%

Explanation:

Answer:

yes

Explanation:

Kids like fun things, and school is not fun , so if kids got to go to school on a zipline, attendance would be through the roof!

Answer:

of what grade it is of??

Explanation:

tell me then ill answer

Answer:

Magnesium

Explanation:

Hope this helps!

Alkynes are called the hydrocarbons. Ethyne is an important alkyne which is used in oxyacetylene gas cutting. A hydrocarbon containing a carbon-carbon triple bond is the alkyne. The correct option is C.

In organic chemistry, an alkyne is defined as the unsaturated hydrocarbon containing at least one carbon-carbon triple bond. The alkynes are unsaturated hydrocarbons and their general formula is CₙH₂ₙ₋₂ and the triple bond is known as the acetylene bond.

Many alkynes are found in nature. Ethyne is the first member of the alkyne family in which two carbon atoms are connected by a triple bond. Almost all alkynes are also found to be hydrophobic in nature.

Alkynes show three types of isomerism like chain isomerism, position isomerism and functional isomerism. The triple bond present in the alkynes is its functional group.

Thus the correct option is C.

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Answer:

Well one characteristic is electical energy transforms into  thermal energy and gases and the state of matter(one of the distinct form i which  matter exist)

Answer:

Explanation:

meters has to go on the bottom of the bracket used for conversion

50m [ 1000 mm / 1 m]= 50000 mm The meters cancel

Answer:

Hello

please make sure that there is any group which is join with alkane

The correct answer is; Carbon atoms can form chains and branches with each other, and other atoms can attach to these.

Organic chemistry is regarded as the chemistry of carbon compounds and carbon atoms are known to catenate.

Organic chemistry is the branch of chemistry that studies carbon compounds. There are thousands of organic compounds in existence.

The common thread that joins all these organic compounds is that they all contain a long or branched chain of carbon atoms linked to each other. This ability of carbon atoms to self-link forming long chains or branches or macrocyclic compounds is called catenation.

The long or branched chain of carbon is therefore the "back bone" or main framework of the compound.

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Answer:

(Question 1) Metallic bonds are responsible for many properties of metals, such as conductivity. Why is this possible?

(Answer) The bonds can shift because valence electrons are held loosely and move freely.

(Question 2) Between which types of elements do ionic bonds occur, and how do electrons act within the bond?

(Answer) metals and nonmetals, electrons transferred

(Question 3) Which kind of bond would occur between sodium (Na, Group IA) and chlorine (Cl, Group VIIA)?

(Answer) ionic

(Question 4) Why is carbon said to provide a “backbone” in many molecules?

(Answer) Carbon atoms can form chains and branches with each other, and other atoms can attach to these.

(Question 5) Which option describes the structure of the electron shells in a neutral carbon atom?

(Answer) The inner shell is complete with two electrons. The outer shell is incomplete with four electrons.

Explanation:

i just finished the quick check UwU

Answer:

oxygen shows 2 bonds with hydrogen

answer : increasing pressure

the amount of gas that can be dissolved in liquid water increase with the increase in pressure

Answer:

increasing pressure

Explanation:

Answer:

group ten period four. that's the answer

Arsenic contamination of groundwater is a form of groundwater pollution which is often due to naturally occurring high concentrations of arsenic in deeper levels of groundwater.Arsenic contamination of ground water is found in many countries throughout the world, including the US.

Answer:

You have provided wrong option.

Their interparticle forces of attraction are in the order D>A>C>B

So, option (d) D should be there.

To make a 2 M solution, the correct method is to dissolve 1 mole of the compound in 2 L of water. This results in a concentration of 2 moles per liter, which corresponds to a 2 M solution.

The correct option is C.

To make a 2 M (molar) solution of a compound, we need to dissolve an appropriate amount of the compound in a given volume of solvent, typically water, to achieve a concentration of 2 moles per liter.

Molarity (M) is defined as moles of solute per liter of solution. To prepare a 2 M solution, we need a concentration of 2 moles per liter. This means that for every liter of solution, we should have 2 moles of the compound.

Option A suggests dissolving 1 molar mass of the compound in 2 L of water. However, molar mass is not equal to moles. Molar mass represents the mass of one mole of the compound.

Option B suggests dissolving 2 moles of the compound in 1 L of water. This would result in a concentration of 2 moles per liter, which matches the desired 2 M concentration. However, the given option indicates dissolving 2 moles in 1 L, which contradicts the definition of molarity.

Option C suggests dissolving 1 mole of the compound in 2 L of water. This aligns with the definition of molarity, as it gives us a concentration of 1 mole per liter. To achieve the desired 2 M concentration, we would need to double the amount, resulting in 2 moles per liter.

Option D suggests dissolving 2 g of the compound in 1 L of water. This option does not consider the molar mass of the compound and assumes that the molar mass is equal to 2 grams per mole, which is not always the case.

In conclusion, option C is the correct choice for making a 2 M solution, as it involves dissolving 1 mole of the compound in 2 L of water.

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I was interested in science when I first saw a diagram of Solar system in my sister's geography book. At that time I was in Senior Kindergarten and she was in 6th grade. At first, I was just interested in space, universe and black holes stuff, but then as I started learning more, I realised how amazing other branches of science are too. They are so systematic. What encourages me to learn more are the gaps in science, its mysteries, I wish to uncover them one day, and for that I am preparing myself. When I am in a science class, I try to imagine where can I apply this knowledge in my day to day life, and my teachers are fascinated when I ask them if this principle is responsible for this phenomena. I love it very much. I like Physics the most, but other branches are great too.

Answer:

yes

Explanation:

because is smallest element that are made up of atom

Answer: Yes

Explanation:

Answer:

Lewis dot

Explanation:

It's a very simplified representation of the valence shell electrons in a molecule.

The correct answer is Lewis dot.

A Lewis dot structure of a molecule is a structure in which the valence electrons of the molecule are represented using dots.

It is usual to seek a simple representation for simple molecules that explains in part, the  properties of the molecule.

Such a representation must show the valence electrons in the molecule. A simple representation that can do this is the Lewis dot structure of molecules. The Lewis dot structure of NO2 molecule is shown in the image attached to this answer.

It was introduced by G.N Lewis and can be successfully used to represent many simple chemical molecules.

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Answer: A the location of atoms, groups, or ions relative to one another and the number, type, and location of covalent bonds

Explanation: I just took the assessment and in my notebook molecular structure has a definition that is literally answer A. Also I got it right lol.

Answer:

They are branch of science.

Explanation:

hope this helps

Answer:

Branch's of science yk

Explanation:

I'm smart lol

They found that difference occurs in the speed of both sound and charges occur due to the difference in the type of medium.

Sound and charges needs specific medium for faster movement i.e. sound moves faster in solid as compared to liquid and gas whereas charges moves faster and easily in gold due to lower resistance which is followed by copper. Sound can move from solid, liquid and gases whereas charges move only in solid metal in which free electrons are present. The speed of sound and flow of current are affected due to difference in the arrangement of atoms in solid, liquid and gas.

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Answer:

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