Help please! this is the last question on my assignment and it’s confusing me.

The specific heat of this metal is 0.385  J/g ∘ C.

What is Specific heat?

The amount of heat needed to raise a substance's temperature by one degree Celsius in one gramme, also known as specific heat. Typically, calories as well as joules per gramme per degree Celsius are employed as the units of specific heat. For instance, water has a specific heat of 1 calorie (as well as 4.186 joules) per gramme per degree Celsius. The Scottish scientist Joseph Black, inside the 18th century, started to notice that equal masses of various substances needed various amounts of heat to raise people through the same temperature range, and, from in this observation, he founded this same concept of specific heat. Early in the 19th century, French physicists Pierre-Louis Uniformly as well as Alexis-Thérèse Petit proved that calculating a substance's atomic weight is possible by measuring its specific heat.

Given: m=2800g;△t=35 - 22 = 13C ;

Q=14,014 J

Now, Q=mc△t

14,014=2800×C×13

Specific heat capacity of the metal,

c = 14,014/2800x 13

​=0.385 J/g ∘C

Hence, the specific heat of this metal is 0.385  J/g ∘ C.

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The chirality of center is c, d and e are chiral center

Chirality means that an object or molecule cannot be superimposed on its mirror image by any translations or rotations

According to given data the c is the attached to the carbon bonded to nitrogen and a dashed bond to CH₂ OPO₃ and a CH₂ bonded to a nitrogen so it is chiral center and then d  is a nitrogen bonded to a wedged bond to hydrogen a dashed bond to a carbon and two in plane bonds to two other unique carbons that's why d is also the chiral center and then e atom is a carbon with a wedged bond to a carbon a bond to nitrogen and an in plane bond to a carbonyl so e is also the chiral center of the given compound

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The traits that are effected by the X or the Y chromosomes are s--ex linked.

We know that animals are composed of cells. The cells have different parts that are contained in the cells and these parts of the cells are what we call the organelles of the cell. The organelles of the cell just helps the cell to perform its functions. The cell is the simplest unit of life that we have.

Now one of the organelles in the cell is the chromosome. This is the organelle that contains the gene. It gene is the unit of inheritance. Let us know that this unit of inheritance is passed from the parents to the offspring.

Let us then bear in mind that hen a trait is affected by a gene on either on the X or Y Chromosomes, which inheritance pattern is being described as s--ex linked.

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Answer:

both the original and the new genes

Explanation:

Using Bronsted - Lowry theory of acid and bases reaction :

a) HNO₃   +  OH⁻    -----> NO₃   +  H₂O

b) CH₃NH₂  +   H₂O ------>   CH₃NH₃⁺    +    OH⁻

c) OH⁻  +  HPO₄²⁻  ⇔    PO₄³⁻    +   H₂O

2) NaOH is an Arrhenius base as it dissociates in water to give OH⁻ (hydroxide) and Na⁺ (sodium) ions.

NaOH is Bronsted Lowry base as it accepts H⁺ ion in the given reaction :

HCl + NaOH --->    H₂O   +  NaCl

3)   potassium metal with hydrochloric acid:

2K  +    2HCl   ---->   2KCl    +   H₂

4)

a) KOH  =  potassium hydroxide is strong base

b) H₂Se =  hydrogen selenide is acid

c) C₂H₃O₂H = acetic acid

d) Fe(OH)₂ = iron(II)hydroxide is base

e) HCN = hydrogen cyanide is weak base.

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Which of the following factors can precipitate as po₄³⁻ ions in an aqueous solution: ca²⁺.

Precipitate: In chemistry, a stable substance occurs due to a chemical reaction that reduces the solubility of a solid or an exchange of reactions due to a change in temperature. In meteorology, precipitation is liquid or strong water falling from the sky (rain, snow, etc.). Fehling's solution is blue due to dissolved Cu2. When silver nitrate and sodium chloride are mixed with water, the silver chloride precipitates out of the solution as a heavy precipitate. In this situation, the precipitate is silver chloride.

A precipitate has a strong form in a chemical reaction that is unique to both reactants. This occurs when solutions containing ionic compounds combine to form insoluble products. Sediment identification can usually be addressed by reviewing solubility recommendations. The correct answer is a homogeneous aggregate of two or more materials. A precipitate is a stable substance that separates from the solution as in a chemical reaction.

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Considering the Combined Law Equation, the pressure of Cl₂ if the volume is increased to 0.800 l and the temperature increased to 55 °C is 114.367 mmHg.

Boyle's law states that the pressure of a gas in a closed container is inversely proportional to the volume of the container, when the temperature is constant: if the pressure increases, the volume decreases while if the pressure decreases, the volume increases.

Mathematically, this law is expressed as:

P×V= constant

Gay-Lussac's law states that the pressure of a gas is directly proportional to its temperature when the volume is constant: increasing temperature increases pressure, while decreasing temperature decreases pressure.

Mathematically, this law is expressed as:

P÷T= constant

Charles's law states that the volume is directly proportional to the temperature of the gas when the pressure is constant: if the temperature increases, the volume of the gas increases while if the temperature of the gas decreases, the volume decreases.

Mathematically, this law is expressed as:

V÷T= constant

Combined law equation is the combination of three gas laws called Boyle's, Charlie's and Gay-Lusac's law:

(P×V)÷T= constant

Considering an initial state 1 and a final state 2:

(P₁×V₁)÷ T₁= (P₂×V₂)÷ T₂

In this case, you know:

Replacing in Combined law equation:

(475 mmHg× 0.175 L)÷ 298 K= (P₂× 0.800 L)÷ 328 K

Solving:

[(475 mmHg× 0.175 L)÷ 298 K] × (328 K÷ 0.800 L)= P₂

114.367 mmHg= P₂

Finally, the new pressure will be 114.367 mmHg.

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Answer:Water is entirely composed of hydrogen and oxygen Being composed of such elusive and invisible elements

Explanation:this is helped to be clear by oxygen and invisible elements like nutrients

The electron configuration for Fe with 26 electrons is:

The electronic configuration of an elemnet is the arrangement of electrons in electron orbits or energy levels around the nucleus of an atom of the element.

The electronic configuration shows the number of electrons that are found in an atom of the element.

The electrons in an atom are filled into orbitals.

The four orbitals to which electrons in an atom can be accommodated are:

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According to the given statement if the mass of the stone was 25g was its density 5 g/cm³.

Density is the ratio of a material's mass to its volume. The formula for density is d = M/V, where d denotes density, M is mass, and V is volume. Density is typically measured in grams per cubic centimeter.

Despite the fact that the SI unit of density is kg/m3, we instead use g/cm3 for solids, g/ml for liquids, and g/L for gases out of convenience.

Mass = 25 g

Volume = 7 mL – 2 mL

Volume = 5 mL

Volume = 5 cm³

Density = mass/volume

Density = 25 g/5 cm³

Density = 5 g/cm³

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The total pressure become 1.514 atm

According to Dalton's Law of Partial Pressures, the partial pressure of a gaseous component in a gaseous mixture is equal to the pressure that the component would produce if it inhabited the container alone.

hence,

[tex]P_{mixture} = P_{A} + P_{B} +P_{C}[/tex]

We are given [tex]P_{A}[/tex]and[tex]P_{B}[/tex], but we must determine [tex]P_{C}[/tex]. We may do this by assuming ideality and using the following formula:

[tex]P_{C}= \frac{0.110 mol . 0.0821 . 326}{9.10} =0.323atm[/tex]

[tex]P_{mixture} = P_{A} + P_{B} +P_{C}[/tex]

              =0.324 + 0.867+0.323

              =1.514 atm

The total pressure become 1.514 atm

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Answer:

nitrogen and carbon because there diffusion rate is high

Answer:

3

Explanation:

A nitrogen atom has 3 unpaired electrons

1. Energy level is the discrete energy value possessed by an electron when it is in an orbital.

2. Sublevel is part of a main energy level consisting of one or two more electrons of the sublevel energy

In quantum chemistry, the electrons' state of motion within the electrostatic field produced by stationary nuclei is referred to as their electronic structure. Both the electrons' wave functions and the energies connected to them are covered by this phrase. In order to solve the aforementioned clamped-nuclei problem, quantum mechanical equations must be solved.

The Born-Oppenheimer approximation leads to problems with the electronic structure. One of the two steps in understanding a molecular system's quantum mechanical motion is the electronic structure problem, along with nuclear dynamics. Most electronic structure problems require the use of modern computers, with the exception of a small number of straightforward issues like atoms that resemble hydrogen.

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The frequency of a wave is V = 4.4 x [tex]10^{2}[/tex] [tex]s^{-1}[/tex].

The visible light spectrum is the part of the electromagnetic spectrum that can be seen by the human eye. This wavelength range is simply called visible light. Normally the human eye can see wavelengths between 380 and 700 nanometers. Visible light made up of the individual colors of the rainbow is only a small part of the electromagnetic spectrum. Another kind of light is radio waves.

The wavelength of light waves is approximately 400 to 700 nanometers 4,000 to 7,000 angstroms. Our eyes perceive different wavelengths of light as rainbow colors. Red light has a relatively long wavelength approximately 700 nm in length. Blue and violet light have short wavelengths of about 400 nm and the visible light spectrum is part of the spectrum of electromagnetic radiation visible to the human eye.

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Absorbance (A) and   [tex][FeSCN2^{+}][/tex]  of the solution is 1.041

Transmittance=0.091

Absorbance (A) and  [tex][FeSCN2^{+}][/tex] of the solution  is calculated by:

A=-log( T), where T = 0.091

A=-log(0.091)

A=1.041

Absorbance (A) and   [tex][FeSCN2^{+}][/tex]  of the solution is 1.041

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Answer:

A. population growth rate

Explanation:

ignore C. and D., these aren't even related to geography. (oh and by the way, this isn't a chemistry question, it's a geography question)

B isn't the answer either because the question includes "immigration rates". this means that survivorship would only be about the people already inside an area, and forgetting about people who travel into it

Answer:

d. 7

Explanation:

3CO2 => 3 x 2 => 6 atoms

H20 => 1 => 1 atoms

Answer:Both protons and neutrons have a mass of 1

Explanation:

Answer:

Protons and neutrons are both subatomic particles, which means they are both components of atoms. Protons and neutrons are found in the nucleus of an atom. They both have mass of 1 amu.

Explanation:

There is nothing that can be done to cause the sub to sink to the bottom of the tub because the boat displaces more water than it weighs, it's already on its way down.

It is a common observation that there are some substances that are able to float in water. This implies that they have the ability to remain above water and be carried by the water from place to place.

We know that an object would float in water when the weight of the object is equal to the weight of water that is displaced by the object. If the objects tends to displace more water than it weighs, the object would sink in water.

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Missing parts:

expert that helps you learn core concepts.

See Answer

Here we have a toy submarine floating in a bathtub. It's a really fancy sub, made out of steel. The sub weighs one pound. When completely submerged, it displaces two pounds of water.

What could you do to cause the sub to sink to the bottom of the tub?

a)Add one pound of sand to the sub's interior.

b)Add one pound of sand to the sub's interior, plus a little more.

c)Nothing. Since the boat displaces more water than it weighs, it's already on its way down.

I know the answer is B but I cant figure out how to explain why with another example

Both atmosphere density and atmospheric pressure decrease with the increase in altitude.

Atmosphere density decreases as we go up in altitude because the composition of the atmosphere changes in favor of lighter gases, lowering the overall density of the mixture.

On the other hand, with the increase in altitude, the height of the column of air above us decreases, and that air also becomes less dense, resulting in lower atmospheric pressure at higher altitudes. One interesting consequence of this is that, for example, the boiling point of water decreases, so that at the top of Mount Everest, water boils at 68 °C.

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Convection is a type of heat transfer in which a fluid experiences an energy transition. Radiation refers to the process by which heat is transferred between objects without direct physical contact.

Through the process of conduction, heat is transferred directly from one object to another. Convection is a type of heat transfer in which a fluid experiences an energy transition. Radiation refers to the process by which heat is transferred between objects without direct physical contact.

Direct contact between the objects is how heat is transferred during conduction. The heat is transferred within the fluid during convection. Heat transfer in radiation happens through electromagnetic waves without the use of particles. The temperature difference causes heat transfer to occur.

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The law of conservation of mass hold true in this case.

Mass of magnesium = 48 g

Mass of product = 80 g

Total mass of the reactants = Total mass of the products

The balanced chemical reaction for the burning of magnesium strip in air follows:

[tex]2Mg + O_2 \rightarrow 2MgO[/tex]

Mass of the reactants = Mass of Mg + mass of [tex]O_2[/tex]

Mass of the products = Mass of MgO

Putting values in the equation:

Mass of [tex]O_2[/tex] = 80 - 48 = 32g

The latent mass of the reactant is the mass of oxygen consumed. Thus, the formation of magnesium oxide follows laws when magnesium is burned.

The law of conservation of mass, or the principle of  conservation of mass, states that in any system that is closed to all  matter and energy transfers, the mass of the system must remain unchanged over time, because the  mass of the system cannot change. , so the amount cannot be increased or decreased. will be deleted. Therefore, the amount of mass is conserved over time.

The law means that mass cannot be created or destroyed, although it can be moved in space or its related entities transformed. For example, in chemical reactions, the mass of the chemical components before the reaction is equal to the mass of the components after the reaction. Thus, in all chemical reactions and low-energy thermodynamic processes in an isolated system, the total mass of the reactants or reactants must  equal  the mass of the products.

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Plate tectonics is supported by the distribution of fossils. The graphic depicts how four distinct fossilised species were distributed over three continents.

How the plates originally fit together is shown by evidence from fossils, glaciers, and adjacent coasts. Plants and animals formerly lived there, and fossils show us when and where.

According to the idea of plate tectonics, the mantle is covered by a number of different plates that make up the Earth's crust. Compared to the mantle of the Earth, the plates behave like a solid, rigid shell. The lithosphere is this thick outer layer. Continental drift has been replaced by plate tectonics.

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The unknown liquid must have a density that is lower than that of water since ice will only float in liquids that are less dense than water.

For your information, ice has a density of 0.92 g/cm³ but water has a density of 1 g/cm³. Only liquids less dense than 0.92 g/cm³ will cause ice to sink. The unknown liquid must have a density that is lower than that of water since ice will only float in liquids that are less dense than water.

Other liquids have denser solid phases due to the tightly packed arrangement of molecules at lower temperatures. Although the water ice's hydrogen bonds are strong, their orientation causes molecules to push apart, which lowers density.

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The season on earth is constantly changing from one form to another in a cycle that occurs over and over again

Earth is the fragmental material composing part of the surface of the globe and earth's tilted axis causes the seasons  throughout the year in different parts of earth receive the sun most direct rays so when the north pole tilts toward the sun it's summer in the northern hemisphere and when the south pole tilts toward the sun it's winter in the northern hemisphere

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     Lewis structure, sometimes referred to as Lewis dot structure or electron dot structure, is an easy way to depict the electrons in the outermost shell of a chemical species, such as an atom, ion, or molecule.

       Lewis structures, often referred to as Lewis dot formulas, Lewis dot structures, electron dot structures, or Lewis electron dot structures (LEDS), are diagrams that depict the interactions of atoms inside molecules as well as any lone pairs of electrons that may be present.

     A Lewis structure is a visual representation of the electron distribution around atoms. To forecast the quantity and type of bonds that might form around an atom, Lewis structures must be drawn. The geometry of a molecule can also be predicted using a Lewis structure.

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