The sun’s core is made of solid rock. True or false

The minimum number of lines needed in a grating to resolve a doublet of 600.6 nm and 601.2 nm in the second-order spectrum is 4.

The formula for the minimum number of lines (N) needed to resolve two spectral lines of wavelength λ1 and λ2 in the nth order spectrum is:

N = n × (λ2 - λ1) / d

where d is the spacing between adjacent lines on the grating.

In this problem, we want to resolve a doublet of 600.6 nm and 601.2 nm in the second-order spectrum. So, n = 2, λ1 = 600.6 nm, and λ2 = 601.2 nm. We need to find the minimum number of lines (N) needed to resolve these two lines.

We can use the grating equation to relate the spacing between adjacent lines on the grating (d) to the wavelength of light diffracted at an angle θ:

d sin θ = λ

Rearranging this equation, we get:

d = λ / sin θ

For the second-order spectrum, we have:

nλ = 2d sin θ

Substituting the expression for d in terms of λ and sin θ, we get:

nλ = 2(λ / sin θ) sin θ

nλ = 2λ

So, sin θ = nλ / 2λ = n / 2

For the first-order spectrum, sin θ = 1 / N. So, we can rewrite the equation for sin θ in terms of N:

1 / N = n / 2

N = 2n = 4

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According to the research, the correct option is d. Fernando is currently going through Detoxification process in which his body is cleared of drugs.

This is the treatment aimed at restoring the body's physiological homeostasis after it has been disturbed by the consumption of psychotropic substances as drugs.

In this sense, this process is carried out under the supervision of specialists in the treatment of addictive behaviors.

Therefore, we can conclude that Detoxification is a process of eliminating drugs or substances harmful to health to achieve physiological stability in the body.

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Answer:

water,minerals carbon dioxide, and oxygen

Explanation:

We answered it on my little brothers quiz, and we got a 100%!!!

The compound in each pair is more soluble in water are strontium sulfate, copper (II) carbonate, calcium carbonate, barium chromate, silver chromate and barium iodate.

Strontium sulfate or BaSO4, these two are very insoluble in water because of the high lattice enthalpy of the compounds. Copper (II) carbonate or CuCO3, this salt is also insoluble in water and thus, cannot exist in water without breaking down into its ions. Calcium carbonate or CaCO3, this salt is soluble in water to some extent, but it does not dissolve completely in water.

Barium chromate or BaCrO4, this salt is very insoluble in water as the hydration energy is lower than the lattice enthalpy. Silver chromate or Ag2CrO4, silver chromate is more soluble than barium chromate because the Ag+ ion has a greater affinity for water than Ba2+ ion. Barium iodate or Ba(IO3)2, this compound is moderately soluble in water. The solubility increases with an increase in temperature. If we compare the compounds, then silver chromate is more soluble in water than barium chromate.

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Answer:

false, The nucleus of atoms still move around like crazy, it's just the electrons move more.

Out of the given options, the statement "IR spectroscopy provides information about the molecular weight of a compound" is not true.

Infrared (IR) spectroscopy is a technique used to analyze the molecular vibrations of a compound. It measures the absorption of infrared radiation by the sample, providing valuable information about the functional groups present in the molecule. However, IR spectroscopy does not directly provide information about the molecular weight of a compound.

The other aspects of IR spectroscopy are true:

IR spectroscopy identifies functional groups based on characteristic absorption frequencies.

It can be used to determine the presence of specific bonds, such as C=O, O-H, N-H, etc.

IR spectra are typically displayed as a plot of percent transmittance or absorbance versus wavenumber (frequency).

Remember that IR spectroscopy primarily focuses on molecular vibrations and not molecular weight.

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The quantum numbers does not contain an error is  n = 5, l = 3, ml =-3 .

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Answers:

1. People generally experience rapid growth for a second time between the ages of 15 and 20

2. The endocrine system contains the pituitary, adrenal, and thyroid glands.

3. The nuclear membrane disappears in the third stage of cell division?.

Explanation 1:

Between the ages of 15 and 20, puberty causes the release of multiple hormones, which causes rapid growth among other things.

Explanation 2:

The reproductive system contains the ovaries (female) and testes (male).

The endocrine system contains the pituitary, adrenal, and thyroid glands.

The circulatory system contains three independent systems that work together, the heart (cardiovascular), the lungs (pulmonary), and arteries, veins, coronary and portal vessels (systemic).

The respiratory/pulmonary system contains the nose, mouth, throat (pharynx), voice box (larynx), windpipe (trachea) , airways (bronchi) , and lungs.

Explanation 3:

Mitosis is the process in cell division where the nucleus divides into two nuclei, each with an identical set of chromosomes.

Interphase: occurs when the cell begins to replicate the nuclear DNA material

Stage 1 - Prophase: chromosomes begin to undergo a condensation process that will continue until metaphase. The spindle also begins to form as the two pairs of centrioles move to opposite poles.

Stage 2 - Prometaphase:  Chromosomes are pulled in opposite directions by microtubules growing out from both poles of the spindle until balanced.

Stage 3 - Metaphase:  The centromeres of all the cell's chromosomes line up at the equator of the spindle.

Stage 4 - Anaphase: The chromosomes move away from one another to opposite poles of the spindle.

Stage 5 - Telophase and Cytokinesis: The chromosomes reach the poles, the nuclear membrane then reforms, and the chromosomes begin to decondense. This is followed by cytokinesis, or the division of the cytoplasm into two daughter cells.

Most of my sources say that the nuclear membrane occurs during prophase, but the stages are listed in this order. Regardless, your answer would be A. The nuclear membrane disappears.

I hope this helps!

5.6 atm is  the partial pressure of the rest of the gases in the container other than the oxygen.

Each gas in a mixture adds to the overall pressure of a mixture. This portion represents the pressure. The pressure a gas would have if it were in its own volume and at its own temperature is known as the partial pressure. According to Dalton's law, the pressure distribution of an ideal gas mixture is equal to the combined partial pressures of the component gases.

The study of partial pressure is significant in the domains of physics, chemistry, and biology. The partial pressure of oxygen or carbon dioxide in the blood is used to calculate blood levels of each substance. The overall pressure in a container is equal to the sum of the partial pressures. The remaining gases must make up the remaining 5.6 atm if the oxygen partial pressure equals 4.2 atm and the sun reaches 9.8 atm in pressure.

Therefore, 5.6 atm is  the partial pressure of the rest of the gases in the container other than the oxygen.

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The enantiomer of trans-1,2-diamino cyclohexane that would form a solid complex with d-tartaric acid is the (1R,2R)-trans-1,2-diamino cyclohexane. This is because d-tartaric acid has a (2R,3R) configuration, and it can form a diastereomeric salt with the (1R,2R)-trans-1,2-diamino cyclohexane through hydrogen bonding and other non-covalent interactions.

The formation of this diastereomeric salt leads to a solid complex with enhanced stability and decreased solubility, allowing for easy separation of the enantiomers. The enantiomer of trans-1,2-diamino cyclohexane that would form a solid complex with d-tartaric acid is the (1R,2R)-trans-1,2-diamino cyclohexane. This is because d-tartaric acid, which has a (2R,3R) configuration, can form a diastereomeric salt with the (1R,2R)-trans-1,2-diamino cyclohexane through hydrogen bonding and other non-covalent interactions. Diastereomers are stereoisomers that are not mirror images of each other and can have different physical properties, such as solubility and melting points. In this case, the (1R,2R)-trans-1,2-diamino cyclohexane would form a solid complex with d-tartaric acid due to the specific arrangement of functional groups and their interactions, leading to the formation of a stable diastereomeric salt.

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Answer: 8 electrons

Explanation:

Answer: 8 valence electrons

Explanation: This is because the maximum electron an energy level can hold is 8 making it a stable atom

Answer:

ZnO + H2SO4 = ZnSO4 + H2O | Chemical reaction and equation

Explanation:

gloogle

Answer:

Protons and Neutrons have approximately the same mass.

Equal numbers of protons and electrons make an atom neutral.

Protons have a positive charge

Explanation:

Protons and Neutrons have approximately the same mass. - both are 1 amu

Equal numbers of protons and electrons make an atom neutral. - protons are +1 and electrons are -1, so they cancel each other if there are equal amounts.

Protons have a positive charge - this is true.

Answer: Fe (iron)

Explanation:

the whole number next to the symbols on the periodic table that ascend in order by 1 are the atomic numbers, just look for the symbol next to the number 26.

There are 0.017 mm volume  hydrogen are formed at 715 mm hg and 19.0 deg c if 12.8 g of al react

The relationship between an object's mass and volume seems to be straightforward. The object's mass rises directly proportionately to its volume.

The given reaction is:

2 Al + 6 HCl → 2 alcl3 + 3 h2

It can be seen that, 3 mol of hydrogen is formed during the reaction.

Number of moles of hydrogen = 3

Mass = 12.8 g

d = 715 mmHg

Volume of hydrogen can be calculated as:

Density = mass /volume

Volume = mass / density

Put the values of given data in above expression.

Volume = 12.8 g  / 715 mm hg

Volume = 0.017 mm

Thus, volume of the hydrogen will be 0.017 mm

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The proper whole number coefficient for each substance to yield a balanced equation is option 1 that is 2, 1, 2.

The proper whole number coefficient for each substance to yield a balanced equation is option 1 that is 2, 1, 2. Balancing a chemical reaction is done to find out the overview of that reaction and to find the answers related to that equation. like we can tell many things about the equation just by knowing the coefficients of the terms in that equation. we can tell about the percentage and existence of the products and reactants in the equation. if we know the coefficients of the elements and products we can tell about the mole of the reactants and products in the chemical equation. By this information, we can consider that the proper whole number coefficient for each substance to yield a balanced equation is option 1 that is 2, 1, 2.

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Answer:

The box is at rest

Explanation:

not moving object

Answer:

4

Explanation:

The following equation, which depicts the combustion of propane, is given in this question as follows:

C3H8 + 02 → CO2 + H2O

However, this equation is not yet BALANCED because the number of atoms of each element is not the same on the reactant and product side. To balance the equation, we make use of COEFFICIENT to ensure that the number of atoms of each element on both side correlates.

The balanced equation is as follows:

C3H8 + 502 → 3CO2 + 4H2O

Therefore, the coefficient for water (H2O) after balancing the equation is 4.

The study of chemicals is called chemistry.

The correct answer is D.

The equation is not yet BALANCED because the number of atoms of each element is not the same on the reactant and product sides.

To balance the equation, we make use of COEFFICIENT to ensure that the number of atoms of each element on both sides correlates.

After balancing the equation is as follows:

\(C_3H_8 + 50_2 → 3CO_2 + 4H_2O\)

Hence, the correct answer is 4 which shows the balanced water.

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The atomic structure of a sodium atom:

The atomic number of the sodium atom is eleven. The electrons are placed in their respective orbits and sub-orbits with an electron configuration of 1s²2s²2p⁶3s¹.

The number of electrons and protons is also eleven and they are present in the nucleus of the atom. The sodium atom with an atomic number eleven is made up of a central nucleus which holds eleven positively charged protons, and eleven neutrons.

To maintain a neutral charge the proton count is always balanced with that of the electron count that is present in their respective energy level orbits outside the nucleus based on the energy possed by the electrons.

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The following statement is true about the given reaction:The statement that is true about the given reaction is:"51g of water is produced for every mole of Na3C6H5O7.

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Answer:

D. NO2

Explanation:

D. NO₂ is a polyatomic compound. It is made up of two non-metal atoms (nitrogen and oxygen) that are covalently bonded together and exist as a single, charged entity.

Answer:

4

Explanation:

1N2 + 3H2  2NH3

Answer:

One of the most viscous liquids known is pitch, also known as bitumen, asphalt, or tar.

Explanation:

This is the answer

Answer:

it is in solid state

Explanation:

at 100% heat

At regular intervals, check the stearic acid's temperature. Make a note of the findings and create a temperature vs time graph.

The physical concept of temperature indicates in numerical form how hot or cold something is. A thermometer is used to determine temperature. Thermometers are calibrated using a variety of temperature scales, which historically defined distinct reference points and thermometric substances.

For above given example, check the temperature of the stearic acid often and make a note of the results and plot the temperature against time.

Temperature is not the same as the energy of a thermodynamic system; for instance, an iceberg has a significantly larger total heat energy than a match, despite the fact that a match is burning at a much higher temperature.

Thus, at regular intervals, check the stearic acid's temperature. Make a note of the findings and create a temperature vs time graph.

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The mass of air contained in an adult blue whale’s lungs at 0.5∘C and 1.03 atm, assuming the air behaves ideally is 6.03 kg.

a) Calculation for the number of molecules in a deep breath of air whose volume is 2.25 L at body temperature, 37∘C and a pressure of 740 torr, can be given by the following steps:

Volume of air in a deep breath,

V = 2.25 L

Temperature of air in a deep breath, T = 37+273 = 310 K

Pressure of air in a deep breath, P = 740 torr

Convert torr to atm. 1 atm = 760 torr

Pressure of air in a deep breath, P = 740/760 = 0.973 atm

The number of molecules in the deep breath, n = PV/RT

Where R is the gas constant. R = 0.08206 L atm K⁻¹ mol⁻¹

n = (0.973 atm × 2.25 L)/(0.08206 L atm K⁻¹  mol⁻¹  × 310 K)

n = 0.0925 mol

Number of molecules = n × Na

Where Na is Avogadro's number which is equal to 6.022 × 10²³ mol⁻¹

Number of molecules = 0.0925 mol × 6.022 × 1023 mol⁻¹

Number of molecules = 5.563 × 1022 molecules.

Therefore, the number of molecules in a deep breath of air whose volume is 2.25 L at body temperature, 37∘C, and a pressure of 740 torr is 5.563 × 10²² molecules.

b) Calculation for the mass of air contained in an adult blue whale’s lungs at 0.5∘C and 1.03 atm, assuming the air behaves ideally, can be given by the following steps:

Lung capacity of an adult blue whale = 5.0 × 103L

Volume of air in blue whale's lungs, V = 5.0 × 103L

Temperature of air in blue whale's lungs, T = 0.5+273 = 273.5 K

Pressure of air in blue whale's lungs, P = 1.03 atm

The number of moles of air, n = PV/RT

n = (1.03 atm × 5.0 × 103L)/(0.08206 L atm K⁻¹  the mass of air contained in an adult blue whale’s lungs at 0.5∘C and 1.03 atm, assuming the air behaves ideally is 6.03 kg.mol⁻¹ × 273.5 K)

n = 208.37 mol

The mass of air contained in an adult blue whale’s lungs, m = n × MM

Where MM is the average molar mass of air which is equal to 28.98 g mol⁻¹m = 208.37 mol × 28.98 g mol⁻¹ m

= 6034.58 g or 6.03 kg.

Therefore, the mass of air contained in an adult blue whale’s lungs at 0.5∘C and 1.03 atm, assuming the air behaves ideally is 6.03 kg.

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The ionic equation for dissolution and the solubility product (ksp) expression for each of the following slightly soluble ionic compounds.

(a) For PbCl2:
Dissolution: PbCl2 (s) → Pb²⁺ (aq) + 2Cl⁻ (aq)
Ionic equation: PbCl2 (s) ⇌ Pb²⁺ (aq) + 2Cl⁻ (aq)
Solubility product (Ksp) expression: Ksp = [Pb²⁺][Cl⁻]²

(b) For Ag2S:
Dissolution: Ag2S (s) → 2Ag⁺ (aq) + S²⁻ (aq)
Ionic equation: Ag2S (s) ⇌ 2Ag⁺ (aq) + S²⁻ (aq)
Solubility product (Ksp) expression: Ksp = [Ag⁺]²[S²⁻]

(c) For Sr3(PO4)2:
Dissolution: Sr3(PO4)2 (s) → 3Sr²⁺ (aq) + 2PO₄³⁻ (aq)
Ionic equation: Sr3(PO4)2 (s) ⇌ 3Sr²⁺ (aq) + 2PO₄³⁻ (aq)
Solubility product (Ksp) expression: Ksp = [Sr²⁺]³[PO₄³⁻]²

(d) For SrSO4:
Dissolution: SrSO4 (s) → Sr²⁺ (aq) + SO₄²⁻ (aq)
Ionic equation: SrSO4 (s) ⇌ Sr²⁺ (aq) + SO₄²⁻ (aq)
Solubility product (Ksp) expression: Ksp = [Sr²⁺][SO₄²⁻]

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1) list your givens

P = ?

V = 7.00 L

n = 3.00 mol

R = 8.314 \(\frac{kPa\ L}{mol\ k}\)

T= 300.15 K

2) rearrange your formula

\(PV=nRT\\\\P=\frac{nRT}{V}\)

3) solve

\(P=\frac{(3.00\ mol)(8.314\ \frac{kPa\ L}{mol\ k})(300.15\ K)}{(7.00\ L)}\\\\P=1069.4773299\)

\(P=1.07\) × \(10^{3}\ kPa\)

Answer:

5.597 liters SO2 at STP

Explanation:

1 mole is 6.023 x 10^23 items, in this case sulfur dioxide (SO2).  1.505x10^23 represents:

(1.505x10^23 atoms SO2/6.023 x 10^23 atoms SO2/mole SO2) or 0.250 moles of SO2.  The molar mass of SO2 is 64.1 grams/mole.  But the question is what volume, not what mass.  The volume of any gas at STP can be determined using a handy conversion factor.  All gasses at STP occupy 22.4 moles for every liter.  We have 0.250 moles SO2, so we'll have:

(0.250 moles)*(22.4 Liters/mole) = 5.597 liters SO2

Answer:

2.17 seconds i believe.

Explanation

I took the amount of meters and turned them into feet before dividing the amount of feet by the total amount of seconds it took for her to travel to the classroom library