A gas evolved during a chemical reaction and has a volume of 651 mL at 38 °C and 869 torr. What was the volume of this gas in mL at 110 °C and 3.87 atmospheres?
Just put in the number. The assumption is the unit is mL.
1 atm = 760 torr = 760 mmHg = 101,325 pa = 101.325 kpa = 1.01325 barr = 14.696
p.s.i. = 29.921 inHg
(inHg and p.s.i. are approximations of the metric pressures and are subject to significant figures)

Lewis structure of CH₃-CCH and then hybridization states for the three central atoms is sp³sp³ and sp

A Lewis structure is a very simplified representation of the valance shell electron in a molecule and it is used to show how the electron are arranged around individual atom in a molecule and in propyne there is 3 carbon and in that one carbon is triply bonded so this triply bonded carbon is sp and 2 singly bonded are sp³ hybridized

And the Lewis structure of propyne are

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The net ionic equation of the reaction as it is shown have been given here by the equation; [tex]Cu^+(aq) + Cl^-(aq) ---- > CuCl(s)[/tex]

The term net ionic equation has to do with the equation that shows the manner in which we are able to convey the information that concerns the ions that do not undergo a change in the reaction.

In this case, we have the reaction that occurs between ammonium chloride and copper II acetate which would produce a copper I chloride and an ammonium acetate product. The net ionic equation would now be;

[tex]Cu^+(aq) + Cl^-(aq) ---- > CuCl(s)[/tex]

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The net ionic equation is :

Ba²⁺  +  2OH⁻ +  2H⁺  +  SO₄²⁻   ---->   BaSO₄  +  2H₂O

The balanced molecular equation is given as:

Ba(OH)₂   +  H₂SO₄   ----> BaSO₄  +  2H₂O

The net ionic equation is the equation in which we breaking up into ions and cut off the spectator ions that is the ion which is common in both side , we get :

complete ionic equation first :

Ba²⁺  +  2OH⁻  +  2H⁺  +  SO₄²⁻  ---->    BaSO₄  +  2H₂O

now. there are no spectator ion so net ionic equation is same :

Ba²⁺  +  2OH⁻ +  2H⁺  +  SO₄²⁻   ---->   BaSO₄  +  2H₂O

Thus, The net ionic equation is :

Ba²⁺  +  2OH⁻ +  2H⁺  +  SO₄²⁻   ---->   BaSO₄  +  2H₂O

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Answer: -207936x>112+2x+83

Answer: Between non-metals

Explanation:

The element selected is carbon and the isotopes are carbon-12, carbon-13, and carbon-14.

The number of protons, electrons, and neutrons for each isotope of carbon are as follows:

The isotope notation for each is¹²₆C, ¹³₆C, and ¹⁴₆C.

The carbon-14 isotope is used in the radioactive dating of substances.

Isotopes are atoms of the same element that differ from each other in their masses.

Isotopes of the same element have different masses as a result of the difference in the number of neutrons in the nucleus of the atoms of the element.

The existence of isotopes of elements accounts for why the atomic masses of elements are not whole numbers.

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The molecular formula is (CH2O)5 when the scale factor is 5 and the empirical formula is CH2O.

Considering the question given above, the following data were obtained:

Empirical formula is CH₂O

Molar mass of compound = 150 g/mol

Scaling factor (n) =?

Empirical formula × n = molar mass

[CH₂O]n = 150

[12 + (2×1) + 16]n = 150

[12 + 2 + 16]n = 150

30n = 150

Divide both sides by 30

n = 5

Therefore, the scaling factor is 5

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Answer:

The scale factor is 5. The formula is CH2O.

Multiply each by 5.

So:

C (there is only one)= 1×5

H (there are 2)= 2×5

O(there is only one)= 1×5

Equalling= C5H10O5

Answer:

2 of the children's feet will be webbed, and the other 2 will have paws.

Explanation:

The dominant genes of the Mother will override the recessive genes of the Father, since there isn't 2 of the recessive genes, except for on the other 2 children. If there was a dominant gene, it would have at least 1 capital letter, and that dominant gene would prevent the recessive (lowercase) letter from showing up.

Answer:

Condensation

Explanation:

We can see that H2O is formed when the two molecules join together, which is a characteristic of Condensation polymerization

Answer:

A). Water

PLEASE GIVE BRAINLIEST THANK YOU!!!

Answer:

water

Explanation:

The true statement is that 363 kJ of heat is evolved in the process.

We know that a reaction has to do with the combination of the reactants in order to yield the products. We can see the thermochemical balanced reaction equation of the process as it was written in the question. A thermochemical equation is the type of equation that includes the energy that is absorbed or evolved in the reaction equation.

Now we can see that the reaction shows the combination of hydrogen and oxygen to give two molecules of water. This is a gas phase reaction and heat is given out according to the thermochemical reaction equation.

From the reaction equation;

If 2 moles of hydrogen evolves 484 kJ of energy

1.5 moles of oxygen evolves  1.5 moles *  484 kJ /2 moles

= 363 kJ

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Answer:

V2 = 0.075 L

Explanation:

P1= first pressure 

P2= second pressure 

V1= first volume 

V2= second volume 

P1V1 = P2V2=
(0.20 atmospheres)(15 L) = (40 atmospheres)V2=

V2 = (0.20 atmospheres)(15 L)/(40 atmospheres)=

V2 = 0.075 L

This isn't chemistry but I believe the answer is D, before a suspect in custody is questioned.

Hope this helped.

Answer: D

Explanation:

Ancient Martian riverbed channels were formed by molten lava rather than by liquid water.

Flowing lava can carve and carve paths like water-eroded riverbeds and canyons, and could explain at least one of the winding channels on Mars' surface. Many waterways on Mars were carved by water, but not all. Lava can also flow, creating features similar to stream channels. However, lava functions in many different ways.

Scientists have known since the Mariner 9 mission in 1972 that volcanic structures cover most of the surface of Mars. These features include vast lava flows, vast lava plains, and the largest known volcanoes in the solar system. Massive torrents of water carry rocks and rocks torn from upstream springs. These scratch and abrade the canal floor, creating long lines that floodwaters can wash away and expand.

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The volume occupied by the given mass of iron is 0.83 [tex]cm^{3}[/tex].

The term specific gravity has to do with the ratio of the density of an object to the density of water. We must note that density of water is the bench mark that have been used to obtain the densities of every other substances hence it was assigned a density of 1.00 g/ [tex]cm^{3}[/tex].

Now we know from the question that;

Density of water =  1.00 g/ [tex]cm^{3}[/tex]

Specific gravity of iron = 7.87

Mass of the iron = 6.50 g

Density of iron = Specific gravity * density of water =  7.87 * 1.00 g/ [tex]cm^{3}[/tex]

=   7.87 g/ [tex]cm^{3}[/tex]

Given that;

Density = mass/volume

volume = mass/Density

volume = 6.50 g/7.87 g/ [tex]cm^{3}[/tex]

Volume = 0.83  [tex]cm^{3}[/tex]

We can see that from the calculations, the density of the iron as is clear in the procedure is 7.87 g/cm3  and it has a volume of 0.83 cm3 .

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Answer:

True. When chemists experiment with clinical drugs, they may inadvertently create new side effects that were not present in the original drug. Additionally, the new drug may interact with other drugs in unexpected ways, which can also create new side effects.

The electron configuration of O₂ is 1s² 2s² 2p⁴.

Electron configuration can simply be defined as the arrangements of electrons of atoms of elements in the orbitals or electrons shells. In order words, it simply means putting the electrons in order from the smallest orbital or shell to the biggest one.

That being said, from the task given above, the atomic number of oxygen is 8, meaning that if we are put down, the electron configuration of oxygen, we will have to distribute 8 electrons around its orbitals. An atom simply means the smallest particle of an element which can take part in a chemical reaction. An element is a substance which cannot be splitted into simpler forms by ordinary means.

So therefore, we can now confirm and deduce from the explanation above that electron configuration of the oxygen atom or element is the distribution of electrons around its orbitals.

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The nuclear equation for the Alpha decay of a radioactive Radium-226 isotope is ²²⁶₈₈Ra → ²²²₈₆Rn + ⁴₂He

The sun of the mass numbers of the reactant equal the sum of the mass numbers of the product and radium 226 decay by alpha particles radiation to an inert gas and radon 222 which also decay by alpha particle radiation and due to the short half life of radon 222 there is high probability it will decay in the body and alpha particle is a helium nucleus it contain 2 proton an 2 neutron foe mass number of 4 and during alpha decay an atomic nucleus emit an alpha particles and it transform into an atom with atomic number 2 less and mass number 4 less

And the radium 226 decay through alpha particles emission to form radon 222 according to the equation ²²⁶₈₈Ra → ²²²₈₆Rn + ⁴₂He

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Thus, radium-226 decays through α-particle emission to form radon-222 according to the equation:

Taking into account the definition of density, the length of each side of the cube is 4 cm.

In other words, density is a quantity that allows to measure the amount of mass in a certain volume of a substance.

The expression for the calculation of density is:

density= mass÷ volume

From this expression it can be deduced that density is inversely proportional to volume: the smaller the volume occupied by a given mass, the higher the density.

In this case, you know that:

Replacing in the definition of density:

2 g/cm³= 128 g÷ volume

Solving:

2 g/cm³× volume= 128 g

volume= 128 g÷ 2 g/cm³

volume= 64 cm³

The volume of a cube is equal to the measure of its side to the cube. That is to say:

Volume = side x side x side = side³

So, the length of each side of the cube can be calculated as:

64 cm³= side³

∛64 cm³= side

4 cm= side

In summary, each side of the cube has a measure of 4 cm.

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Radiation is produced when unstable or radioactive atoms through the process of becoming stable. We refer to this process as radioactive decay over time. Two protons and two neutrons are lost from the nucleus as a result of alpha decay.

An unstable nucleus releases radiation and changes into the nucleus of one or more additional elements during a nuclear decay process, also known as radioactive decay.

The ensuing offspring nuclei are less energetic and heavier than the parent nucleus that underwent decay, making them more stable.

For example, by producing an alpha particle, the unstable uranium-238 nucleus naturally decays into a thorium-234 nucleus. The most prevalent radioactive decay processes are decay, emission, decay, positron emission, and electron capture.

Thus, Radiation is produced when unstable or radioactive atoms through the process of becoming stable.

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Answer:

Surface tension due to cohesion

Explanation:

Water molecules are polar meaning they have dipoles. The hydrogen end is partially positive while the oxygen end is partially negative. This is because oxygen with high atomic mass attracting most of the molecule's electron cloud to its end.

Due to this phenomenon water molecules act like little magnets that attract each other. The attraction of the molecules forms hydrogen bonds with each other. This is called cohesion (attraction of similar molecules).  Due to this, water is able to create a surface tension that acts like a ‘skin’ and can support some weight (including its own weight) without collapsing.

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Answer:

Cohesion of water

Explanation:

cohesion means sticking together so Before it overflows, the water forms a dome-like shape(rounded) above the rim of the glass. This dome-like shape forms due to the water molecules' cohesive properties, or their tendency to stick to one another.

The product of this reaction using inorganic by-products using H2/Lindlar's catalyst is cis-2-butene.

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The mass of water is consumed by the reaction of 8.86 g of carbon dioxide is 3.62 g.

The balanced chemical equation for photosynthesis is given by:

6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂

Therefore, from the above reaction it is clear that 6 moles of carbon dioxide and 6 moles of water combines to produce 1 mole of glucose sugar and 6 moles of oxygen.

The molar mass of carbon dioxide is 44.01 g/mol.

Therefore, the number of moles of carbon dioxide in 8.86 g of CO₂ is :

Number of moles of CO₂ = (8.86 g) ÷ (44.01 g/mol )

                                          =0.201 moles

From the balanced chemical equation 6 moles of water is consumed with CO₂.

Number of moles of water = 6moles H₂O ÷ 6moles CO₂ × 0.201mol CO₂

                                             = 0.201 mol

The molar mass of water is 18.01 g/mol.

Therefore the mass of water consumed is :

Mass of water = Number of moles of water × Molar mass of water

                        = 0.201 mol × 18.01 g/mol

                        = 3.62 g

Hence, the mass of water is consumed by the reaction of 8.86 g of carbon dioxide is 3.62 g.

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83.246 ounces of silver is required to make the silver figure.

It is given that 10.49 g/cm^3 is the density of silver at Room temperature and the volume of Silver is 225cm^3.

To prepare silver of 225cm^3 of volume, we require the following:

Density = Mass/Volume

Mass = Density x Volume

Amount of silver = 10.49x225

Amount of silver = 2360.25 g

We know that,

100g = 3.5274 ounces

Then,

= 3.5274/100

= 0.035274 ounces of silver.

The mass of silver required in ounces = 2360.25 x 0.035274

The mass of silver in ounces = 83.246 ounces.

Therefore the mass of silver needed in ounces is 83.246 ounces. Through this conversion, the amount of any substance can be converted from kilograms to ounces.

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The standard potential for the galvanic cell at 25°C is 1.98 V.

A galvanic cell or an electrochemical cell is a cell that converts the chemical energy of the reactions occurring within it to electrical energy.

The galvanic cell is able to convert chemical energy to electrical energy as a result of the redox reactions occurring within the cell.

The standard potential for the given galvanic cell at 25°C is calculated as follows

Standard reduction potentials:

Ti³⁺ + 3e⁻ ---> Ti; E° = − 1.21 V (anode)

Fe³⁺⁺+ e⁻--> Fe²⁺ ; E° = 0.77 volts (cathode)

Eºcell = 0.77 V - (-1.21 V)

Eºcell = 1.98 V

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Answer:

below

Explanation:

From periodic table this is dysprosium

In silicon dioxide the number of the covalent bonds are there between each silicon atom with oxygen atoms is four.

In the silicon dioxide the total number of covalent bond is four between the each silicon atom with the oxygen atoms. The covalent bond is form when the two atoms mutually share the electrons and bond together. the compound which form covalent bond is called as covalent bond. the silicon dioxide form covalent bond because the electronegative difference between silicon and the oxygen is not much.

Thus, In silicon dioxide the number of the covalent bonds are there between each silicon atom with oxygen atoms is four.

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The ratio of the carbon to other atoms would be 2.49375:3.9901:1.000 and the empirical formula of the compound would be  [tex]C_2H_8O[/tex]

The compound contains C, H, and O according to the following information:

C = 4.9875 mol

H = 7.9802 mol

O = 2.00 mol

In order to obtain the empirical formula of the compound, divide the mol of each atom by the smallest mol. In this case, the smallest mol is 2.00

C = 4.9875/2.00

  = 2.49375

H = 7.9802/2.00

    = 3.9901

O = 2.00/2.00

   = 1.0000

Thus, the ratio of carbon to the rest of the atoms present in the compound is 2.49375:3.9901:1.000

In order to find the empirical formula of the compound, the mole of each atom needs to be approximated to the nearest whole number.

C = 2

H = 8

O = 1

Thus, the empirical formula of the compound is [tex]C_2H_8O[/tex].

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Taking into account the definition of Ideal Gas Law, the volume of the container, the pressure of the gas, the number of gas particles, and the temperature of the gas are related by the Ideal Gas Law.

An ideal gas is a theoretical gas that is considered to be composed of randomly moving point particles that do not interact with each other. Gases in general are ideal when they are at high temperatures and low pressures.

An ideal gas is characterized by three state variables: absolute pressure (P), volume (V), and absolute temperature (T). The relationship between them constitutes the ideal gas law:

P×V = n×R×T

where:

In summary, the volume, the pressure, the number of gas particles, and the temperature are related by the Ideal Gas Law.

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