an automobile gasoline tank holds 43.0 kg of gasoline. when all of the gasoline burns, 153.0 kg of oxygen is consumed, and carbon dioxide and water are produced?

Answer:

Solid ionic compounds do not have electrical conductivity because the ions are not free to move. In a liquid, the ionic compound dissociates into its respective ions.

By using the bond energies given (picture attached) the change in enthalpy for the reaction will be -78 KJ

Bond energy of N≡N = 942 KJ/mol

Bond energy of H-H = 432 KJ/mol

Bond energy of N-H = 386 KJ/mol

Enthalpy change of the reaction = ?

Enthalpy change is the amount of heat evolved or absorbed during a chemical process.

The balanced chemical equation for the given reaction

    N₂ + 3H₂  →  2NH₃

So,

    number of moles of N≡N bonds = 1

    number of moles of H-H bonds = 3

    number of moles of N-H bonds = 2(3) = 6

In the first step bond breakage occurs between N≡N and H-H, as bond breakage absorbed heat so we use the plus sign here. In the second step bond formation releases energy so we use the minus sign here.

Calculate the enthalpy of the reaction

    Enthalpy of reaction = (1 × BE of N≡N) + (3 × BE of H-H) - (6 × BE of N-H)

    BE = bond energy

Put the bond energy values

    Enthalphy of reaction = (1 × 942) KJ + (3 × 432) KJ - (6 × 386 ) KJ

    Enthalphy of reaction =  -78 KJ

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Organism is able to form organized patterns of behavior through the process of integration because it has ganglia is grasshopper.

Any organic, living system that performs as a standalone unit is referred to as an organism. All living things are made up of cells.

Groups of multicellular animals, plants, and fungi, as well as unicellular microorganisms like protists, bacteria, and archaea, are some examples of how creatures are categorized by taxonomy.

Atoms, molecules, organelles, cells, tissues, organs, organ systems, and the human organism are the major levels of organization in the body, going from the simplest to the most complex.

Thus, option C is correct.

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In general, the nature of the cellular response to a chemical messenger is determined primarily by the receptive apparatus of the cell.

Cellulаr response is а steаdy stаte of the production of biochemicаl mediаtors in the cell аnd degrаdаtion of those mediаtors аnd there аre numerous wаys this cаn occur. So, cellulаr response cаn be defined аs the finаl step of the cell signаling process in which а specific function or process such аs cell division is initiаted in the cell’s nucleus or cytoplаsm.

Chemicаl messengers (аlso cаlled signаling molecules) trаnsmit messаges between cells. They аre secreted from one cell in response to а specific stimulus аnd trаvel to а tаrget cell, where they bind to а specific receptor аnd elicit а response.

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The atomic number of copper is 29, and it has the mass number 63. The number of protons in the nucleus determines the atomic number, and the number of protons and neutrons determines the mass number.

The total number of protons and neutrons in an atomic nucleus is known as the mass number, sometimes known as the atomic mass number or nucleon number. It is roughly equivalent to the atom's atomic mass expressed in an atomic mass unit.

It is calculated by adding the total amount of protons and neutrons. For instance, the atomic number of magnesium is 4, while the atomic number of lithium is 4, which is equal to the number of protons. Eight ( 4 + 4 ) is the mass number.

Because it indicates the mass of all the protons and neutrons in an element, the mass number of an element is designated as such. The atomic number and atomic mass of an element are often listed in periodic tables along with the chemical symbols for each element.

Thus, An atom has 29 protons, 30 neutrons, and 27 electrons has the mass number 63.

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The colour of the solution is Green.

How does spectroscopy work?

The science of spectroscopy involves analyzing electromagnetic spectra as a function of the wavelength or frequency of the radiation that are produced when electromagnetic radiation interacts with materials.

Lower wavelengths in the visible spectrum, which has a wavelength range between 400 and 700 nm, are equivalent to the violet side of the rainbow spectrum, while higher wavelengths are equivalent to the red side. The violet and red portions of the spectrum should be absorbed by our solution and not be visible because our solution absorbs heavily at about 440 and 600 nm. Green should consequently be the hue that can be seen from the solution because it has the lowest absorption at about 520 nm.

Green is absorbed at a wavelength of 500 nm. This indicates that it will absorb green and display red, which is red's complementary colour.

This is an allusion to spectroscopic techniques that calculate the amount of radiation absorbed in relation to frequency or wavelength when it interacts with an object. For absorption spectroscopy, the complete electromagnetic spectrum is utilized.

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The minimum mass of ethane that could be left over by the chemical reaction is 5.33 grams.

Ethane is a two-carbon alkane that which is a colorless and odorless gas. Ethane is isolated on the industrial scale from natural gas at standard temperature and pressure and as a by-product of petroleum refining.

Given mass of ethane = 15.33 grams

Mass of oxygen = 18.0 grams

We know, molar mass ethane = 30.07 g/mol

and Molar mass oxygen = 32.0 g/mol

2C2H6 + 7O2 → 4CO2 + 6H2O

Moles of ethane = 15.33 grams / 30.07 g/mol

Moles of ethane = 0.509 moles

Moles of oxygen = 18.0 grams / 32.0 g/mol

Moles of oxygen = 0.562 moles

For 2 moles ethane ,we would need 7 moles oxygen to produce 4 moles CO2 and 6 moles H2O

Oxygen is limiting reactant and it will be consumed completely.

0.562 / 3.5 = 0.160 moles

Remaining will be-  0.509 - 0.160 = 0.349 moles

Mass of ethane = 0.349 moles * 15.3 g/mol

Remaining Mass of ethane = 5.33 grams

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Explanation:

Covalent bonds are formed due to sharing of electrons between two atoms in order to complete their octet, whereas ionic bonds are formed between atoms of metals and non-metals where the metal loses an electron to complete its octet and the non-metal gains that electron to complete its octet.

Elemental Phosphorus P4, Elemental copper Cu, Elemental oxygen O2

Many elements are found as diatomic molecules in their elemental state. These molecules have the generic formula X2 because they contain two atoms connected by one or more covalent bonds. Hydrogen (H, element 1), nitrogen (N, element 7), oxygen (O, element 8), fluorine (F, element 9), chlorine (Cl, element 17), bromine (Br, element 35), and iodine are the elements that can be found as diatomic molecules (I, element 53). They have the following molecular formulas: H2, N2, O2, F2, Cl2, Br2, and I2. More than two-atom molecules can include some elements, these elements are polyatomic molecules. At ambient temperature, sulfur is made up of an 8-atom ring connected by only one bond. Selenium can also form 8-atom rings. Each of the four phosphorus atoms that make up white phosphorus is positioned at a tetrahedron's corner. The P4 tetrahedrons are linked together to form a more stable, less reactive allotrope of phosphorus in the more stable red phosphorus.

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Reactivity is the right response because it is the only research that causes a chemical change.

Density definition Density is the measurement of how tightly a substance is packed. It has the same definition as the mass per unit volume. Indicator of density: D or Density Formula: The formula is: = m/V and where's the density, m is the organism's mass, & V is its volume.

Absolute density & relative density are the two main types of density. The relative density, or specific gravity, of a substance is defined as its density divided by the thicknesses of a reference material. Water is commonly cited as a source of information.

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Naming and Writing Formulas

NaBr - ionic - sodium bromide

CF₄ - covalent - carbon tetrafluoride

N₂O₃ - covalent - dinitrogen trioxide

MgI₂ - ionic - magnesium iodide

KH₂PO₄ - ionic - potassium phosphate

SnO₂ - covalent - tin(iv) oxide

Fe(OH)₂ - covalent - iron(ii) hydroxide

P₄O₁₀ -  covalent - phosphorous pentoxide

AuSO₄ - covalent - gold(ii) sulphate

N₂O - covalent - dinitrogen monoxide

Rb₂S - ionic - rubidium sulfide

SeF₆ - covalent - selenium hexafluoride

NaNO₃ - ionic - sodium nitrate

Al₂O₃ - ionic - aluminum oxide

SO₂ - covalent - sulfur dioxide

H₂O - covalent - dihydrogen monoxide

Mn(NO₂)₂ - ionic - magnese II nitrate

HgO - ionic - mercury II oxide

Li₃N - ionic - lithium nitride

Al₂(SO₄)₃ - ionic - aluminium sulfate

The primary function of chemical nomenclature is to ensure that a spoken or written chemical name leaves no ambiguity concerning which chemical compound the name refer to each chemical name should refer to a single substances

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Answer:

n = 2

ℓ = 0

mℓ = 0

Explanation:

Answer:

The first three quantum numbers are n, l, and m l which would be n= 2, l = 0, and ml = 0 #6. Sublevel l = 3 indicates an f sub shell.

Explanation:

HCL is the reactant in this equation and the mncl2 produced dissolves in water.

The given reaction is a redox reaction. Here, Mno2 is the oxidizing agent.

Mn2 + 2e --------> MnCl2

Here, Mn goes from oxidation state +4 to oxidation state +2. Thus, Mn clearly gains electrons. Therefore, Mno2 is reduced to Mncl2 here.

Also,

2Hcl -----------> Cl2 + 2e

Here Cl from Hcl is in oxidation state -1 and after losing one electron it goes to oxidation state 0. Hence Hcl is oxidized to Cl2.

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i have attached an image of carbon atom that you can copy

During pearlite transformation the temperature drops down to 600 degree C and it occurs in the Eutectic point.

What is phase diagram?

Graphical representations of the phases that exist in an alloy under various temperature, pressure, or chemical composition conditions are called phase diagrams.

The graphic illustrates the necessary elements for the equilibrium of two or more phases. A site where water can coexist in three different phases at once is described as a "triple point" in the water phase diagram, for instance. This occurs at a temperature of 0.01 °C and an atmospheric pressure of 0.006.

The pearlite transformation happens when the temperature changes from 675 degree C to 600 degree C. The point where which the transformation occurs is called as Eutectic point.

Eutectic point - A junction of several phases is known as a eutectic point. In the iron-carbon alloy diagram, the intersection of lines A1, A3, and ACM is known as the eutectic point. These points happened to develop at the same time.

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The each of the four quantum numbers and property of orbitals or electrons each describes are :

1) Principle quantum number : the principle denoted by, n. the principle quantum number describes the energy level of electrons. like 3d subshell , n= 3

2) angular quantum number : angular quantum number describes the shape of the sub shell. example , l = 0,1,2,3.....    s,p,d,f

3) magnetic quantum number , ml : describes the orientation of the orbitals. for l = 1 . ml = -1 0 +1

4) spin quantum number ms:  describes the spin of the electrons. there are two possible value of spin quantum number . ms = + 1/2 for up and ms = - 1/2 for down spin.

Thus, The each of the four quantum numbers and property of orbitals or electrons each describes are :

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The standard free-energy change for the reaction is 218090 kJ/mol

Standard reduction potential is the measure of the tendency for a given chemical species that need to be reduced. Where the standard oxidation potential measures the tendency for a given chemical species to be oxidized that is  opposed to be reduced.

electrochemical reaction is  any process that is either caused or accompanied by the passage of an electric current and which involves in most cases the transfer of electrons between two substances—one a solid and the other a liquid.

To find the standard free-energy change we use the formula;

[tex]E^{o}[/tex] = [tex]E_{cathode}[/tex] - [tex]E_{anode}[/tex]  where cathode = Zinc and Anode = Au

[tex]E^{o}[/tex] = -0.76 -1.50

   = 2.26

Therefore  the standard free-energy change will be;

Δ[tex]G^{o}_{cell[/tex] = -6 × 96500 ×2.26

         = 218090 kJ/mol

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Answer:

Isometric, hexagonal, tetragonal, orthorhombic, monoclinic, and triclinic

Explanation:

The 6 basic crystal structures are Isometric, hexagonal, tetragonal, orthorhombic, monoclinic, and triclinic.

What are crystal structures?

Crystal structure is a description of the orderly organisation of atoms, ions, or molecules in a crystalline material in crystallography.  Ordered structures produce symmetric patterns that repeat in the principal directions of three-dimensional space in matter due to the intrinsic nature of the constituent particles. The structure's unit cell is basically group of nanoparticles in the substance that makes up this repeating pattern. The unit cell completely mirrors the symmetry and structure of the entire crystal, which is constructed by repetitive translation of the unit cell along its primary axes. The nodes of the Bravais lattice are defined by the translation vectors.

The 6 basic crystal structures are Isometric, hexagonal, tetragonal, orthorhombic, monoclinic, and triclinic.

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Answer:

The factors that affect an object's gravitational potential energy are its height relative to some reference point, its mass, and the strength of the gravitational field it is in.

The electron dot structures of the elements that compose the compound, carbon, hydrogen and chlorine are shown in the images attached.

We know that the electron dot structure of an element is a representation of the symbol of the element as well as the number of valence electrons that the element has.

When we talk about the valence electrons, we are referring to the electrons that can be found on the outermost shell of an atom and they are the electrons that could be involved in a chemical bond. They may be given out, or combine with other electrons of other atoms in a chemical bond.

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The mass percentage of acetic acid in this vinegar sample is 1.00 %

Density is the size of ways tightly a fabric is packed collectively. it is described as the mass consistent with unit quantity. Density image: D or ρ Density system: ρ = m/V, wherein ρ is the density, m is the mass of the object and V is the quantity of the item.

Density is the substance's mass per unit of volume. The image most usually used for density is ρ, despite the fact that the Latin letter D also can be used. Mathematically, density is defined as mass divided by using volume Density is the mass of an object divided by using its extent. Density frequently has gadgets of grams according to cubic centimeters (g/cm3).

Calculation:-

Acetic Acid = 0.03 mol

moles of Gram of Acetic acid=moles x molar mass.

= 0.03 mol x 60 mol

Now, as De 1.8g Density = 1.00

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Answer:

A homogenous mixture of two or more substances is called solution. The substance with the greatest relative amount is called the solvent, while the other substance (s) is called the solute.

Explanation:

The sentence our eyes are made of nerve tissue, blood vessel tissue, muscle tissue, lens tissue, pupil tissue, and many more types of tissue to make eyes is supported by the interaction of these structures to form an organ.

An organ is a group of different tissues (such as in the case of  eye the muscle tissue and nerve tissue ) which work together to play one or more particular roles.

Therefore, with this data, we can see that an organ is a group of tissues that play particular roles in the body.

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Answer:

HF

Explanation:

From the aquifer, 18 m3 of water may be pumped.

Because the total amount of precipitation, evapotranspiration, and runoff are equal, the water budget of the entire planet is balanced. Local water budgets, also known as water use budgets, are typically unbalanced for a certain area.

The naturally occurring water cycle includes groundwater (check out our interactive water cycle diagram). The precipitation that falls on the ground penetrates the subsoil to some extent. The portion of groundwater recharge that travels deeper into the soil until it reaches saturated rock material is the last to do so.

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The Lewis dot structures of the ions have been shown in the image attached.

The term electron dot structure has to do with the Lewis structure of the compound or the ion. In this structure, what it can show us is the number of atoms that we can find in the ion as well as the number of electrons that can be shown as dots.

If we take a look at the images that have been attached to this answer, they show the Lewis or the electron dot structures of the ions that have been shown as well as the formal charges that the ions are known to carry.

In this case, we can see that the central atom in the carbonate ion is the carbonate atom while the central atom in the sulfate ion is the sulfur atom.

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In the above chemical equation, the total number of moles needed to produce 6 moles of oxygen is 4 moles (option C).

Stoichiometry is the study and calculation of quantitative (measurable) relationships of the reactants and products in chemical reactions (chemical equations).

According to this question, pottasium chlorate undergoes decomposition reaction to form pottasium chloride and oxygen as follows:

2KCIO₃(s) → 2KCI(s) + 30₂(g)

Based on the above equation, 2 moles of potassium chlorate produces 3 moles of oxygen.

This means that 6 moles of oxygen will be produced by 12/3 = 4 moles of potassium chlorate.

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The reaction in this experiment is the reverse of the hydration of cyclohexene to form cyclohexanol is OH  H⁺  + H₂O

The forward and backsword reactions are plausible in acidic conditions. To avoid this a special debilitation apparatus is used ic. Chicken al distillation apparatus. The precious, expeckenbeserve besi bugs point 86 degrees C is much lower than the cyclohexanol 165 degrees C. So if the distillation happens, the product evaporates no son as it comes in the reaction and is collected in a separate vessel.

So it would be in contact with acid or reaction mixture for much time. The distillate will contain only the product whereas bestizoru lacy in the reduction veal in eye labels real would Oneida. The feedstock is contaminated with water, unreacted alcohol, phosphoric acid, and some byproducts. Washing with water removes most contaminants. Treatment with sodium carbonate solution removes traces of acid and a final water wash removes the remaining carbonates. Synthesis of alkenes dehydration of cyclohexanol.

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