When subjected to heat and pressure, a chemical sedimentary rock can be changed into which rock type?

Responses

foliated igneous rock

clastic sedimentary,

metamorphic

non-foliated igneous

Si3P4 this is the answer i beleive!

For a structure of the CH3Br structure, see attached image.

A covalent compound is represented by a lewis structure structure, in which valence electrons, lone pairs, and bonding electrons are represented by dots. Sir G.N. Lewis first described the method in his 1916 article "Atom and Molecule."

They are also known as molecular dot electron diagrams. The CH3Br molecule has fourteen electrons in total. As may be plainly seen in the attached image, each element's atom is surrounded by dots to represent its valence electrons.

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Mole measure the number of elementary entities of a given substance that are present in a given sample. Therefore, 0.02moles of NH₃ are there in 500cm³ of the gas.

The SI unit of amount of substance in chemistry is mole. The mole is used to measure the quantity or amount of substance. We know one mole of any element contains 6.022×10²³ atoms which is also called Avogadro number.

Mathematically,

number of moles of any ideal gas =given volume ÷Volume occupied by one mole of a ideal gas at STP

Volume occupied by one mole of a ideal gas at STP=22400cm³

given volume of NH₃=500cm³

substituting all the given values in the above equation we get,

number of moles of NH₃ =500 ÷22400

number of moles of NH₃ =0.02moles

Therefore, 0.02moles of NH₃ are there in 500cm³ of the gas.

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For the acid-base reaction between cesium hydroxide and nitric acid, the given equations are as follows:

Acid-base reactions are reaction in which acids reacts with bases to form salt and water only.

Acid-base reactions are called neutralization reactions since the acid and base are both neutralized to a neutral substance, salt.

The equations in the acid-base reaction of Cesium hydroxide (aq) and nitric acid (aq) are described below:

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The limiting reactant is lead(II) acetate the theoretical yield is 1.1909 g and the percent yield is 83.71 %.

The amount of the sample in a specific solution volume is known as its molarity (M). The molarity of a solute per liter of the a solution is known as molar ratio. The molar concentration in a solution is another name for molarity.

Molarity

= moles of solute/volume of the solution

or Moles

= Molarity * volume of solution

For potassium sulfate :

Molarity = 0.116 M

Volume = 56.0 mL

The conversion of mL to L is shown below:

1 mL = 10⁻³ L

Thus, volume = 56.0×10⁻³ L

Thus, moles of potassium sulfate:

Moles = 0.116 M * 56.0 * 10-3 moles

Moles of potassium sulfate  = 0.006496 moles

For lead(II) acetate :

Molarity = 0.102 M

Volume = 38.5 mL

The conversion of mL to L is shown below:

1 mL = 10⁻³ L

Thus, volume = 38.5×10⁻³ L

Thus, moles of lead(II) acetate :

Moles = 0.102 * 38.5 *10-3 moles

Moles of lead(II) acetate  = 0.003927 moles

According to the given reaction:

[tex]$\mathrm{K}_2 \mathrm{SO}_{4(a q)}+\mathrm{Pb}\left(\mathrm{C}_2 \mathrm{H}_3 \mathrm{O}_2\right)_{2(a q)} \rightarrow 2 \mathrm{KC}_2 \mathrm{H}_3 \mathrm{O}_{2(s)}+\mathrm{PbSO}_{4(a q)}$[/tex]

1 mole of potassium sulfate react with 1 mole of lead(II) acetate

0.006496 moles potassium sulfate react with 0.006496 mole of lead(II) acetate

Moles of lead(II) acetate = 0.003927 moles

Lead(II) acetate is limiting reagent. ( 0.003927 < 0.006496)

0.003927 mole of lead(II) acetate gives 0.003927 mole of lead(II) sulfate

Molar mass of lead(II) sulfate = 303.26 g/mol

Mass of lead(II) sulfate = Moles × Molar mass = 0.003927 × 303.26 g = 1.1909 g

Theoretical yield = 1.1909 g

Given experimental yield = 0.997 g

% yield = (Experimental yield / Theoretical yield) × 100 = (0.997/1.1909 g) × 100 = 83.71 %

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Answer:yes

Explanation: Because i can help u

A chemist measures the enthalpy change ∆H during the reaction COCl2(g)+4NH3(g)--->CO(NH2)2(s)+2NH4Cl(s). Then ∆H = -140 KJ.

The amount of heat that gets released or absorbed during a reaction and that takes place under constant pressure is referred to as the enthalpy change. The sign for it is H, which can be read as “∆H.”

Note that only reactions carried out under constant pressure are covered by the phrase “enthalpy change.”

The main distinction that comes in between enthalpy and entropy, which exists despite the fact that they are both components of a thermodynamic system, is that the enthalpy is expressed as the total amount of heat content whereas altogether the entropy is the level of disorder.

The whole internal energy is represented by enthalpy. And volume times pressure. The enthalpy of a system cannot be measured, although enthalpy variations can be observed.

[tex]CoCl_{2}[/tex] + [tex]4NH_{3}[/tex] →[tex]CO(NH_{2} )_{2} + 2 NH_{4}Cl\\[/tex]

∆H = -559 Kj

Then reverse the above reaction and multiply with 2 as sign of ∆H changes from -ve to +ve

[tex]2CO(NH_{2})_{2} + 4NH_{4}Cl[/tex] → [tex]2COCl_{2} + 8NH_{3}[/tex]

∆H = -559 x 2

= 1118 Kj

[tex]CoCl_{2}[/tex] + [tex]4NH_{3}[/tex] →[tex]CO(NH_{2} )_{2} + 2 NH_{4}Cl\\[/tex]

∆H = -559 Kj

Reverse the above reaction ∆H changes from -ve to +ve

[tex]CO(NH_{2})_{2} + 2NH_{4}Cl[/tex] → [tex]COCl_{2} + 4NH_{3}[/tex]

∆H = +559 Kj

[tex]CoCl_{2}[/tex] + [tex]4NH_{3}[/tex]  → [tex]CO(NH_{2} )_{2} + 2 NH_{4}Cl\\[/tex]

∆H = -559 Kj

Above equation is divided with 4

[tex]\frac{1}{4}[/tex][tex]CoCl_{2}[/tex] + [tex]NH_{3}[/tex] → [tex]\frac{1}{4}[/tex] [tex]CO(NH_{2} )_{2} + \frac{1}{2} NH_{4}Cl\\[/tex]

∆H = -559/4 KJ

= -139.8 KJ

≈ -140 KJ

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When 30.0 grams of sulfur dioxide and 8.4 grams of water combine then 38.27 grams of sulfurous acid (H₂SO₃) must form.

A limiting reagent is a reactant that is entirely consumed in the chemical reaction from the reaction mixture and indicates the completion of the reaction and is known as a limiting reactant.

The limiting reagent will decide the maximum quantity of product when reactants will not take in stoichiometric quantities.

Given, the chemical reaction of the formation of sulfurous acid:

SO₂ (g) + H₂O (l)  → H₂SO₃ (l)

The molecular mass of the sulfur dioxide, water, and sulfurous acid is 64, 18, and 82g/mol respectively.

Given, the amount of sulfur dioxide, and water is 30 g and 8.4 g respectively.

If 18 grams of water react with sulfur dioxide = 64 g

Then 8.4 g  of water reacts with sulfur dioxide = (64/18)×8.4 = 29.86 g

So, water is the limiting reagent in this reaction, which will decide the amount of sulfurous acid.

If 18 grams of water formed  sulfurous acid = 82 g

Then 8.4 g  of water will form sulfurous acid. = (82/18)×8.4 = 38.27 g

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Weight of water displaces is 9.0 × [tex]10^{-2}[/tex]  kg.

By the help of Archimedes’ principle,

F = weight of water displaces

Given, F = 9.0 × [tex]10^{-2}[/tex] N

Hence, weight of water displaces is 9.0 × [tex]10^{-2}[/tex]  kg.

Archimedes' principle states that a body immersed in a fluid is subjected to an upwards force same to the load of the displaced fluid. this is a first circumstance of equilibrium. We recall that the above force, referred to as pressure of buoyancy, is located in the center of the submerged hull that we name center of buoyancy.

He did supposedly get an concept as he sat down in a bath, but it wasn't approximately buoyancy that is the phenomenon on which his principle is based. Archimedes' principle states that any object, completely or in part immersed in a fluid, is buoyed up via a force equal to the burden of the fluid displaced through the object.

It is utilized in designing of ships and submarines. It is used in lactometers to determine the purity of milk. it is used in hydrometers to decide density of fluids. It is used in hydraulic lifts.

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The Miranda rights are very important because she can secure an attorney if she wants one. That is option A.

The Miranda rights are the rights that an individual has when involved with a criminal procedure to help protect them when in police custody.

The Miranda rights where created in the United States of America in the year 1966 which occurred as a result of case of Miranda v. Arizona.

These Miranda rights are used or initiated only when the suspect is to be interrogated under custody and not merely when arrested.

It lets the individual know that they can secure an attorney if they want one.

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Answer:   A

Explanation:

The Net force which is acting on the object is 20.12 N and the direction (θ) of the net force is 26.56° towards the South of East. The net force is a resultant of both the forces.

Th net force is the vector sum of all the forces which are acting on a particle or object. The force on the object in the diagram is given below as follows:

Force 1, F₁ = 18 N (force acting in a direction to the east)

Force 2, F₂ = 9 N (force acting in a direction south)

The two forces makes the two sides of a right-angled triangle in the diagram:

Net force can be determined using Pythagoras rule as follows:

Net force, F = √[(F₁)² + (F₂)²]

Net force = √ [(18)² + (9)²]

Net force = √ (324 + 81)

Net force = √ 405

Net force = 20.12 N

The direction of the Net force (θ) is determined as follows:

θ = tan⁻¹ (9 / 18)

θ = tan⁻¹ (0.5)

θ = 26.56° towards South of East

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The gram molecular masses of the following species are

H₂O is a compound.

molecular mass H₂O :

mass of hydrogen = 1 g/mol

mass of oxygen = 16 g/mol

molecular mass of H₂O = 2 × 1 + 16

                                       = 18 g/mol

C₁₂H₂₂O₁₁ is a compound.

mass of carbon = 12 g/mol

mass of hydrogen = 1 g/mol

mass of oxygen = 16 g/mol

molecular mass of C₁₂H₂₂O₁₁ = 12 × 12 + 22 × 1 + 11 × 16

                                                = 144 + 22 + 176

                                                = 342 g/mol

-----(C₃H₆)₁₀₀----- Polypropylene is a compound.

mass of carbon = 12 g/mol

mass of hydrogen = 1 g/mol

molecular mass of -----(C₃H₆)₁₀₀₀----- = (3 × 12 + 6 × 1 ) × 1000

                                                            = 42000 g/mol

Al₂O₃ ( aluminum oxide ) is chemical compound.

mass of aluminum = 27 g/mol

mass of oxygen = 16 g/mol

molecular mass = 2 × 27 + 3 × 16

                          = 102 g/mol

S₆ (sulfur powder)

mass of sulfur = 32 g/mol

molar mass of = 6 × 32

                        = 192 g/mol

CHCl₃ ( chloroform) is a compound

mass of carbon = 12 g/mol

mass of hydrogen = 1 g/mol

mass of chlorine = 35 g/mol

molar mass of CHCl₃ = 12 + 1 + 3 × 35

                                   = 119 g/mol

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System and surroundings:

A system is defined as a matter or region on which analysis is done. The system is separated from the surroundings by the boundary. Everything external to the system is surrounding.

Specific heat function:

The amount of heat that must be added to one unit of mass of the substance in order to cause an increase of one unit in temperature.

Enthalpy changes:

We could say that it is equal to the difference between the energy used to break bonds in a chemical reaction and the energy gained by the formation of new chemical bonds in the reaction.

Standard enthalpy of formation: ​

It is a measure of the energy released or consumed when one mole of a substance is created under conditions from its pure elements.

Using the molar ratio of the limiting reactant to the product, the theoretical yield of copper would be 192 grams.

In chemical reactions, limiting reactants are reactants that limit the extent of reactions due to their limited quantities as compared to other reactants.

Thus, limiting reactant dictates the amount of product that is formed from reactions.

Considering the reaction:

[tex]3CuCl_2 + 2Al = 2AlCl_3 + 3Cu[/tex]

Aluminum being the limiting reactant has 2 moles. The copper, being the product has 3 moles. Thus, the mole ratio between the limiting reactant and the product is 2:3.

This means that for every 1 mole of aluminum that reacts, 1.5 moles of copper is produced.

3 moles of copper are produced from the reaction.

Recall that: mass = mole x molar mass

Molar weight of copper = 64 g/mol

Mass of 3 moles copper = 3 x 64

                                      = 192 grams

The theoretical yield of copper is, therefore, 192 grams.

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The 1.662 × 10¹⁸ protons per second will shine on the chemistry text from a 250 W bulb.

A photon or light quantum, is an energy packet of electromagnetic radiation. Einstein suggested the presence of discrete energy packets during the transmission of light and deduced that the light quantum is associated with momentum (hν/c).

A photon is defined as a discrete bundle of electromagnetic energy that also moves at the speed of light (3 × 10⁸ m/s).

The energy of a single photon with a wavelength (λ) of 550 nm can be calculated from the following equation:

E = hc/λ

Where h is Planck's constant has a value equal to 6.626*10⁻³⁴ J·s.

E = (6.626 × 10⁻³⁴ J·s × 3×10⁸ m/s) / (550 ×10⁻⁹m)

E = 3.614 × 10⁻¹⁹ J.

It means that the energy of one photon is equal to 3.614 × 10⁻¹⁹ J.

[tex]1J/s \times \frac{1photon}{3.614 \times 10^{-19} J.}[/tex]

= 2.77 × 10¹⁸ proton/s = 1 Watt

Given, a 200 W bulb converts 5% of its output into light, therefore

200* 5/100 = 6 W

Then 6 watts has photons = [ 2.77 ×10¹⁸ proton/s * 6 ] = 16.62 × 10¹⁸ proton/s

If only 10% of the light will shine on year chemistry textbook, Then

16.62 × 10¹⁸ proton/s × 10/100 = 1.662 × 10¹⁸ protons/s

The number of photons shining on chemistry text = 1.662 × 10¹⁸ protons

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Answer: Molarity  (M) = 6.897 x 10-4 (exponent)

Explanation:  Atomic weight of KI is 166.028

12.6 mg = 0.126g/ 166.028 =  7.58 x 10-5 mol

Molarity (M) = concentration

M = moles(n)/Volume (in liters)

M= 7.58 x 10-5 mol/0.1099L = .0006897 M = 6.897 x 10-4 (exponent)

Answer:

yess Petroleum—or crude oil—is a fossil fuel that is found in large quantities beneath the Earth's surface and is often used as a fuel or raw material in the chemical industry.

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Eris is round an orbits the sun, it is slightly smaller than the planet Mercury. Yet, Eris is classified as a dwarf planet because Eris is a plutoid. It is a trans-Neptunian dwarf planet. It is the most distant dwarf planet which  is located beyond the orbit of the Neptune.

The orbital characteristics of Eris are more specifically categorized as a scattered disk object. It has been scattered into more-distant and unusual orbits which follows the gravitational interactions with the Neptune as the solar system was forming.

Eris was discovered in 2005 and was classified as the planet. It is a celestial body that orbits the sun, and has enough mass to be round in shape. It has not cleared neighborhood around its orbit as it is a dwarf planet.

Eris is classified as a plutoid because it is farthest from the sun than Neptune. It is massive enough to be pulled into a spherical shape but not as massive as eight planets of solar system.

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203 mL of 0.2950 M HCI is required to neutralize 75.00 mL of 0.6000 mL NaOH.

Hcl + NaOH [tex]\rightarrow[/tex] Nacl + H2O

Form dilution formula:

M1V1=M2V2.

So M1=0.6000M, V1=0.075L, M2=0.2950M HCl, V2=?

 V2  = M1V1/M2

        = (0.8)(0.075)/0.2950

        =0.2033L=203 mL.

Dilution is the process of "lowering the concentration of a solute in a solution simply by  adding more solvent, such as water, to the solution." Diluting a solution requires adding a solvent without adding a solute.

A popular way to make a solution of a given concentration is to take a higher concentration  and add water until the required concentration is reached. Dilution is the term for this procedure. Dilution can also be done by mixing a higher concentration solution with a lower concentration. Since stock solutions are often obtained and stored in very concentrated concentrations, dilution of the solutions is a mandatory procedure in the laboratory.

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The speed of the sound wave is 340 mrter per second.

f = frequency of sound wave = 680 hertz

λ = wavelength of sound wave = 0.5 meter

v = speed of the sound wave

We know that the velocity of a sound wave is given by

speed of sound wave = frequency wave of sound x wavelength of sound wave

v = f λ

Substituting the above values into the above equation

v = (680 hertz) (0.5 meters)

v = 340 meters per second

Therefore the speed of sound waves is 340 meters per second.

Sound waves are pressure waves. They can be seen as pressure fluctuations over time. Sound waves are transverse waves. To hear the sound of a tuning fork, the tines on the fork must move air from the fork to the ear. Most sound waves are produced by vibrating objects. Sound is a kind of energy produced by vibration.

These vibrations create sound waves that travel through media such as air water, and wood. When an object vibrates it creates motion in the particles of the medium.

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Answer:

0.686 M

Explanation:

To find the molarity of C₂H₆O, you need to (1) convert grams to moles (using the molar mass of C₂H₆O) and then (2) calculate the molarity (using the molarity ratio). The final answer should have 3 sig figs like the given values.

(Step 1)

Atomic Mass (C): 12.011 g/mol

Atomic Mass (H): 1.008 g/mol

Atomic Mass (O): 15.999 g/mol

Molar Mass (C₂H₆O): 2(12.011 g/mol) + 6(1.008 g/mol) + 15.999 g/mol

Molar Mass (C₂H₆O): 46.069 g/mol

  74.6 g C₂H₆O               1 mole
-------------------------  x  --------------------  =  1.62 moles C₂H₆O
                                      46.069 g

(Step 2)
Molarity = moles / volume (L)

Molarity = 1.62 moles C₂H₆O / 2.36 L

Molarity = 0.686 M

The number of moles are in 68.43 g of calcium metal is 1.710 moles

the no. of moles is given by :

The no. of mole = mass of the substance / mass of one mole

given values are :

mass of calcium ( Ca ) = 68.43 g

molar mass of calcium that is the mass of one mole of calcium  = 40 g/mol

substituting the values,

number of moles = mass / molar mass

                            = 68.43 g / 40 g/mol

                            = 1.710 moles

number of moles calcium in 68.43g  = 1.710 moles

Thus, The number of moles are in 68.43 g of calcium metal is 1.710 moles.

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1) If the temperature of the system increases, the equilibrium constant k decreases.

2) the concentration of H₂ increases.

The reaction is given as :

CO +  2H₂   ⇄  CH₃OH                          ΔH = -91.8 KJ ( exothermic reaction)

1) Temperature is the only factor that changes the equilibrium constant for the given reaction. As temperature increases equilibrium constant decreases because the reaction is exothermic reaction.

                K = [ CH₃OH ] / [CO] [H₂]²

2) If the temperature increases the position of equilibrium moves to the left and concentration of H₂ increases.

Thus, 1) If the temperature of the system increases, the equilibrium constant k decreases.

2) the concentration of H₂ increases.

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By the definition of molarity, 1000ml of HCl solution contains 0.0858 moles of HCl.

The moles of HCl in 21ml of solutions can be obtained as follows-

Moles of HCl = 21ml *0.0858moles/1000ml

                     = 0.0081moles

Hence, moles of ethylamine =0.0081moles

Now,

the molarity of ethylamine solutions can be obtained as follows-

Since,

35ml of ethylamine solution contains 0.0018moles

the moles of ethylamine in 1000ml of the solution(molarity) can be obtained as-

Molarity = 1000ml/L * 0.0018mol/35ml

            = 0.0514 M

Hence,

the molarity of ethylamine solution is 0.0514 M

This is because, to find molarity of a solution considering a titration curve  which is a plot of pH v/s volume of titrant. The equivalence point in the titration curve is the point at which there is a significant change in pH with small addition of titrant. At the equivalence point, the moles of titrant equal the moles of analyte.

The volume of the HCl solution added to reach the equivalence point is 21ml.

At this point, the moles of HCl = moles of ethylamine

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Answer:

x = 549.5ml

Explanation:

As per the given data,

Volume of alcohol = 70% (v/v) = 70 ml in 100ml solution

Volume of the compound present = 785ml

From the above given values,

x ml solute/785 = 70/100

x ml solute = 70*785/100

x = 549.5ml

therefore, the volume of solute is 549.5ml.

date:09-10-2022

Answer:

BLACK

Explanation:

the color is black

Answer: 1st one is black second one is also black

Explanation:

The number of moles of NO₂ formed when 10.2 moles of NO₃ reacts is 20.4moles.

According to this question, nitrogen IV oxide (NO₂) reacts with nitrogen II oxide (NO) to form nitrogen VI oxide (NO₃) as follows:

NO₃ + NO → 2NO₂

The number of moles of either the reactants or the products can be calculated stoichiometrically as follows:

Based on the above chemical equation, 1 moles of NO₃ reacts to form 2 moles of NO₂.

This means that if 10.2 moles of NO₃ reacts, 10.2 × 2 = 20.4 moles of NO2 will be produced.

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The statement that when solving problems using dimensional analysis, the units cancel out diagonally from each other is TRUE.

Dimensional analysis  can be referred to as the analysis of the relationships between different physical quantities by identifying their base quantities and units of measure and tracking these dimensions as calculations or comparisons are performed.

The main idea in Dimensional Analysis is to be able to create a conversion ratio that has the units you want in the numerator and the units you already have in the denominator.

The statement that when solving problems using dimensional analysis, the units cancel out diagonally from each other is TRUE.

Dimensional analysis allows you to convert units by multiplying the old measurement by one (or more) forms of the number 1. While we know that the multiplication by 1 does not change the value of the measurement, it in effect does change the measurement's units.

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