(need answer) energy passes heat from one object to another?​

1. The branched alkane contain 4 carbon in the parent chain and 1 substituent group

2. The branched alkane 10 carbon parent chain and 1 substituent group

A branched chain alkane or branched alkane is an alkane which has alkyl group bonded to its central carbon chain and branched alkane contain only carbon and hydrogen atom and with carbon connected to other carbon by single bond and the longest continuous chain of carbon atom is the parent chain and if there is no longest chain because two or more chain are the same longest length then the parent chain defined as the one with most branches and the substituent atom or group of atom substituent in place of hydrogen atom on the parent chain of hydrocarbon that's why here in the first picture the the branched alkane contain 4 carbon in the parent chain and 1 substituent group and in the second picture the branched alkane 10 carbon parent chain and 1 substituent group

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The pH of a buffer that is 0.086 M HF and 0.386 M LiF when the K₂ for HF is 3.5x 10-4 is 2.802

The pH of a buffer solution is given by Henderson Hasselback equation.

pH=pKa+log[A-]/[HA]

Substituting the values, we get

pH=-log(3.5x10^-4)+log(0.086/0.386)

pH=-log(3.5x10^-4)-0.653

pH=3.455-0.653

pH=2.802

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If the structure of the crystal contains an identical component at the center of the cube then it is said to be BCC whereas if there are parts in the center of each face along with those at the corners of the cube, then it is FCC.

Crystal structures may be narrated in several ways. The most usual manner is to refer to the size and shape of the cube and the locations of the atoms (or ions) within the cell. The crystal structure is set on by X-ray diffraction. A beam of X-rays strikes the crystal and the diffraction design is then used to study the structure, Matter can broadly be restricted into two categories based on its internal structure i.e. amorphous and crystalline. The morphology of crystals can be studied with the unaided eye in large well-evolve crystals and has been historically examined.

So we can conclude that the size of the unit cell and the positioning of atoms in a crystal may be set on from measurements of the diffraction of X-rays by the crystal, termed X-ray crystallography.

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The molecular formula of the compound, given that it contains only hydrogen and sulfur is H₄S₂

We'll begin by obtaining the mass of sulfur and hydrogen. This is illustrated below:

Mass of S = (32 / 64) × 10

Mass of S = 5 g

Mass of H = (mass of compound) – (mass of S)

Mass of H = 5.31 – 5

Mass of H = 0.31 g

Next, we shall determine the empirical formula

Divide by their molar mass

H = 0.31 / 1 = 0.31

S = 5 / 32 = 0.156

Divide by the smallest

H = 0.31 / 0.156 = 2

S = 0.156 / 0.156 = 1

Thus, the empirical formula is H₂S

Finally, we shall determine the molecular formula. Details below

Molecular formula = empirical × n = mass number

[H₂S]n = 68

[(2×1) + 32]n = 68

34n = 68

Divide both sides by 34

n = 68 / 34

n = 2

Molecular formula = [H₂S]n

Molecular formula = [H₂S]₂

Molecular formula = H₄S₂

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Answer: i think its empirical

Explanation:

Answer: It is conduction.

Explanation: Heat travels through solid substance by the process of conduction. By conduction heat from the fire heats up the pot and reaches the rice grains at bottom.

The number of moles of O₃ required to react with 0.54 mole of NH₃ is 0.36 mole

First, let us let us consider the balanced equation, to obtain usefull information as regarding the question.

6NH₃ + 4O₃ -> 3N₂O + 9H₂O

From the balanced equation above,

6 moles of NH₃ reacted with 4 moles of O₃

With the information obtained from the balanced equation, we can succefully determine the number of mole of O₃ required to react with 0.54 mole of NH₃. Details below

From the balanced equation above,

6 moles of NH₃ reacted with 4 moles of O₃

Therefore,

0.54 moles of NH₃ will react with = (0.54 × 4) / 6 = 0.36 mole of O₃

Therefore, we can conclude that the number of mole of O₃ required is 0.36 mole

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The empirical formula for Cl₂O₆ is ClO₃.

The empirical formula of any chemical compound is the atoms ratio present in the formula to simplest whole number. it is the simplest formula of any chemical compound.

the given molecular formula is :

Cl₂O₆ : by dividing the both the subscripts to 2 , to get simplest whole number. we get :

empirical formula : ClO₃

The molecular formula is Cl₂O₆. the molecular formula of any chemical formula is the representation of atom in the chemical equation with subscript to indicate number of atoms in the molecule.

Thus, The empirical formula for Cl₂O₆ is ClO₃.

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Answer:

89.1Joule Because when Multiply The Half Of Mass With The Square of Velocity we Get We Get Eighty nine Point One

The standard electrode potential of the voltaic cell is 1.25 V.

We know that a cell is composed of the anode and the cathode. Current would always enter in via the abode and then leave via the cathode. In any case, there is a metallic conductor that would always acts as a conduit for the electrons to pass through.

In this case, we can see the the cathode and the anode. The cathode is the part of the cell that gains electrons and is reduced while the anode is the part of the cell that is oxidized and there is a loss of electron there.

Now the cell potential can be obtained from;

standard potential = electrode potential of the cathode- Electrode potential of the anode

The standard potential = (-0.50) - (−1.75)

= 1.25 V

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The concentration of sodium ions in a solution made by diluting 10.0 mL of a 0.774 M solution of sodium sulfide to a volume of 100 mL would be 0.1548 M.

According to the dilution principle, the number of moles of solutes in a solution before and after dilution must be the same. This is expressed as the following equation:

[tex]m_1v_1 = m_2v_2[/tex]

Where [tex]m_1[/tex] is the molarity before dilution, [tex]v_1[/tex] is the volume before dilution, [tex]m_2[/tex] is the molarity after dilution, and [tex]v_2[/tex] is the volume after dilution.

In this case, [tex]m_1[/tex] = 0.774 M, [tex]v_1[/tex] = 10.0 mL, [tex]v_2[/tex] = 100 mL.

[tex]m_2[/tex] = [tex]m_1v_1/v_2[/tex]

     = 0.774 x 10/100

      = 0.0774 M

Thus, the new concentration of the sodium sulfide solution would be 0.0774 M.

Mole of the final solution: 0.0774 x 0.1 = 0.00774 mol

Sodium sulfide formula = [tex]Na_2S[/tex] ---> [tex]2Na^+ + S^{2-[/tex]

Equivalent mole of sodium ion = 0.00774 x 2

                                                    = 0.01548 mol

The concentration of sodium ions = mol/volume

                                                  = 0.01548/0.1

                                                  = 0.1548 M

In other words, the concentration of the sodium ions in the diluted solution would be 0.1548 M.

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Answer:

4 moles of glucose = 4 x 6.022 x 10^23 = 2.4088 x 10^24 molecules of glucose.

There are 2.4088 x 10²⁴ atoms in 4 moles of glucose C₆H₁₂O₆

1 mole of any gas is defined as the number of  atoms, molecules or ions present in the gas. 1 mole of any gas equals to 6.022 x 10²³ atoms , ions or molecules . 6.022 x 10²³ is known as avogadro's number.

We need a conversion factor that will converts from moles of glucose, C₆H₁₂O₆ to molecules of glucose.

That is, one mole of any substance contains 6.022 x 10²³ molecule of that substance.

4moles of glucose = 4 x 6.022 x 10²³ = 2.4088 x 10²⁴ molecules of glucose.

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The molecular formula is obtained from the empirical formula by multiplying with an integer which is get by dividing the molecular mass by the formula mass. Thus if the integer is 2, then the molecular formula of the compound is C₁₄H₁₀O₄.

The molecular formula of a compound is used to represent the atom present in the compound with their correct number of moles. The empirical formula is derived from the mass percents of the elements in the whole compound.

The integer we get from dividing the molar mass by the formula mass is multiplied with the numbers in the empirical formula to get the molecular formula. Here, the empirical formula is C₇H₅O₂. Thus by multiplying it by 2 we get C₁₄H₁₀O₄.

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It is the simplest whole number ratio of elements in a compound. Molecular formula is n times the empirical formula, where n is integers 1,2,... The molecular formula is C[tex]_{14}[/tex]H[tex]_{10}[/tex]O[tex]_{4}[/tex].

Empirical formula gives the proportion of the element that is present in a compound. It does not give information about the actual number or the arrangements of the atoms.

n= molecular formula÷ empirical formula

Empirical formula =C[tex]_7[/tex]H[tex]_5[/tex]0[tex]_2[/tex]

n=2

Substituting the given values

2= molecular formula÷ C[tex]_7[/tex]H[tex]_5[/tex]0[tex]_2[/tex]

molecular formula=  C[tex]_7[/tex]H[tex]_5[/tex]0[tex]_2[/tex]×2

molecular formula=C[tex]_{14}[/tex]H[tex]_{10}[/tex]O[tex]_{4}[/tex]

Therefore, the molecular formula of the compound C[tex]_7[/tex]H[tex]_5[/tex]0[tex]_2[/tex] is C[tex]_{14}[/tex]H[tex]_{10}[/tex]O[tex]_{4}[/tex].

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Intermolecular forces such as dipole-dipole forces, London dispersion forces exist between molecules. The state of matter of a substance at a given temperature is determined by the relationship between molecules.

Intermolecular forces of attraction is force of attraction that make two molecule come closer. Intermolecular forces of attraction is directly proportional to the electronegativity of the molecule.

At a given temperature, the state of any matter can be defined on the basis of presence of forces of attraction between the molecules of the matter.

Thus, the state of matter of a substance at a given temperature is determined by the relationship between molecules.

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The heat will transfer from one object to the other based on the temperature gradient. If the temperature of water is greater than that of the iron bar, the iron bar will gain energy .

The heat energy transfer from a hot body to a colder body and which can be interpreted based on the law of conservation of energy. There are three modes of heat transfer namly, conduction, convection and radiation.

Conduction is the energy transfer mode in solids, where the closely packed molecules will transfer heat to the neighbouring molecules in the chain. Convection is taking place in liquids and radiation is for gases.

When a metal of high temperature is dropped into water, the water temperature will rise since heat will transfer from the hot metal to the cold water. If the water has higher temperature than the metal, then the metal will gain energy.

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Answer:

the answer is that you should prove it

Answer:

As we go down in groups in periodic table , number of shells increases than that in the previous group which tends to increase the size of atom eventually increasing the atomic radius.

Explanation:

For group 13:

Boron has 2 shells

Aluminum has 3 shells

Gallium has 4 shells

Indium has 5 shells and

Thallium has 6 shells.

Simple!

So the size goes on increasing down the group!

At STP, O2(g) and O3(g) are two forms of the same element that have option 1: different molecular structures and different properties

Due to the release of heat during its breakdown into oxygen, ozone is less thermodynamically stable than oxygen. Ozone is made up of three oxygen molecules, making it in an unstable state. In order to become stable, ozone gives up one of its oxygen molecules in order to return to its diatomic state.

Therefore, Ozone (O2) and ozone (O3) both include oxygen atoms, but they differ in terms of their physical and chemical characteristics. Ozone has a strong, pungent odor, whereas oxygen is odorless. While oxygen liquefies at a much lower temperature than ozone, at -112 degrees Celsius, ozone does so.

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See full question below

At STP, oxygen exists in two forms, O2(g) and O3(g). These two forms of oxygen have 1. different molecular structures and different properties 2. different molecular structures and the same properties 3. the same molecular structure and different properties 4. the same molecular structure and the same properties

Answer:

The ethmoid, sphenoid, occipital, paired frontal, and paired temporal bones are the 5 bones that make up the base of the skull. Three areas of the skull base—the anterior, middle, and posterior cranial fossae—can be distinguished.

The mass of water vapor that will be produced when iron hydroxide decomposes to form iron oxide and water vapor is 0.126 grams.

The mass of a substance can be calculated stoichiometrically. Stoichiometry is the study and calculation of quantitative (measurable) relationships of the reactants and products in chemical reactions (chemical equations).

According to this question, iron hydroxide decomposes to form iron oxide and water vapor. If 0.500 g of iron hydroxide are decomposed, the mass of water vapor produced can be calculated as follows;

2Fe(OH)₃ → Fe₂O₃ + 3H₂O

Based on the above equation, 2 moles of iron hydroxide decomposes into 3 moles of water vapor.

moles = 0.5g ÷ 106.87 g/mol = 0.00468mol of iron hydroxide.

0.00468 × 1.5 = 0.00701moles of water vapor.

mass of water vapor = 0.00701 moles × 18g/mol = 0.126g

Therefore, 0.126 grams of water vapor will be produced from 0.500 grams of iron hydroxide.

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Answer:

2.0 L

Explanation:

P1= first pressure 

P2= second pressure 

V1= first volume 

V2= second volume 

P1V1 = P2V2=
(5.7 atm)(350 mL) = (1.0atm)V2

V2= (5.7 atm)(350 mL) / (1.0 atm)=

V2= 1.99500 L = 2.0 L

Nature contains questions that can be answered by science.

The correct option is B).

What is nature?

The word nature refers to the things we can see with our eyes generally they include: plants, animals, the landscape, and other features and products of the earth, as opposed to humans or human creations.

The science of nature helps us to understand how the world and the universe around us work.

There are five major branches of the Science of Nature:

.Chemistry

.Astronomy

.Earth science

.Physics

.Biology.

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Answer

A. Astrology

Explanation:

The rest isnt science its just like puedoscience so its A.

The intermolecular forces that exist between Br₂ and CCI₄ is dispersion force and London dispersion force

Intermolecular forces that arises between the positive components of one molecule and the negative components of another molecule and in the Br₂ there is London dispersion force because this is the diatomic element are nonpolar and nonpolar molecules are only capable temporary dipoles and the intermolecular forces between CCI₄ is the London dispersion force of attraction which is also known as induced dipole induced dipole and it is referred to as induced dipole because it is an attraction between temporary dipole in the structure

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¿What is silicic anhydride?

Silicon dioxide is a delicate, rough and light material. act as a substance thickener and free circulation.

In the cosmetic and cleaning industry, it allows the production of laundry soaps and all kinds of detergents. Incorporated into the paste for teeth, and combined with calcium carbonate, helps us remove plaque or tartar dental safely.

It is also used in the manufacture of glass, ceramics and cement. It is used in manufacture of sandpaper and blocks. As a catalytic converter, it acts in all acid production processes sulfuric. It is also used as a sharpener for the manufacture of discs, inks of printing, adhesives and polyester resins. Finally, it is used in the production of sand for cats.

Answer:

the three states of matter are solid liquid and gas so the one that would also have fluids is liquid

The time that it would take is 1843 years.

The age of the sample is obtained by the use of the formula;

0.693/[tex]t_{\frac{1}{2} }[/tex] = 2.303/t log (No/N)

Given that;

[tex]t_{\frac{1}{2} }[/tex] = Half life of the C - 14

t = The age of the sample

No = The amount of the sample originally present

N = The amount of the sample present at time t

Given that we are told that 20%  of the sample has decayed thus we have only 80% left

0.693/5730 = 2.303/t log(No/0.8No)

1.21 * 10^-4 =  2.303/t log(1.25)

1.21 * 10^-4 =  0.223/t

t = 0.223/1.21 * 10^-4

t = 1843 years

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The temperature of a vessel  is 296.43 Kelvin when pressure reads 1.250 atm.

Temperature is a physical quantity that expresses quantitatively the perceptions of hotness and coldness.

At standard temperature and pressure, when pressure is 1.000 atm the value of temperature is 273,15 K.

If the pressure at temperature T changes to 1.250 atm

p1 = 1. 000 atm

T1 = 298.15 k

P2 = 1.250

T2 = ?

We apply Gay-Lussacs law

Using P1/ T1 = P2 /T2 all at constant volume

T2 =  296.43 K.

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