True or False : A scientific law is different from a scientific theory because it describes something in nature without attempting to explain it.

The pressure of [tex]N_{2}[/tex] will rise under the given conditions. And, Yes, it is possible to reverse this tendency by adding [tex]H_{2}[/tex]. The minimum pressure of H2 required to reverse the tendency is 0.01 atm.

The reaction involved is: [tex]N_{2}[/tex](g) + 3[tex]H_{2}[/tex](g) ⇌ 2[tex]NH_{3}[/tex](g)  Hence, when [tex]H_{2}[/tex] is added to the above system, the [tex]N_{2}[/tex] and  [tex]H_{2}[/tex]  will react to produce [tex]NH_{3}[/tex]. This reaction will reduce the amount of [tex]N_{2}[/tex] present in the system, causing the pressure of [tex]N_{2}[/tex] to decrease. Therefore, by adding [tex]H_{2}[/tex]  , we can change the tendency of [tex]N_{2}[/tex] pressure from rise to fall.To calculate the minimum pressure of  [tex]H_{2}[/tex]  required to reverse the tendency, we have to use the equilibrium constant, Kp. The expression for Kp for the above reaction is: Kp =( [tex]NH_{3}[/tex]) / p([tex]N_{2}[/tex]) p3( [tex]H_{2}[/tex] )

At equilibrium, Kp = 1.7 × 104 at 1126 °C.Now, we will solve for the minimum pressure of [tex]H_{2}[/tex]   needed to reverse the tendency. Let's assume that the pressure of [tex]N_{2}[/tex] has increased by x atm. Therefore, the new pressure of [tex]N_{2}[/tex] will be (0.0406 + x) atm. At equilibrium, we have:

p2([tex]NH_{3}[/tex] ) / p([tex]N_{2}[/tex]) p3( [tex]H_{2}[/tex] ) = 1.7 × 104

On substituting the given values and simplifying, we get:

p2([tex]NH_{3}[/tex]) / p(N2) = 6.39 × 10-5

Now, p2([tex]NH_{3}[/tex]) = 5.97 atm, and p([tex]N_{2}[/tex]) = (0.0406 + x) atm.

On substituting these values, we get:5.97 / (0.0406 + x) = 6.39 × 10-5

Solving for x, we get:x = 0.00579 atm ≈ 0.01 atm (rounded to 2 significant digits)Therefore, the minimum pressure of [tex]H_{2}[/tex]   required to reverse the tendency is 0.01 atm.

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1. - c. Absolute dating

2. - k. Zircon

3. - m. Meteorites

4.- h. Compression melting

5. - e. Relative dating

6. - a. An igneous intrusion

7. - g. Unconformity

8. - d. Index fossils

9. - f. The Grand Canyon

10.- b. Iguazu Falls in Argentina

11. -h. Yosemite Valley

12.- i. Carbon 14 dating

13.-c. Radiometric dating

Carbon 14 dating, also known as radiocarbon dating, is a technique used to determine the age of organic materials based on their content of the radioactive isotope carbon-14. Carbon-14 is a naturally occurring isotope of carbon that is formed in the upper atmosphere by the interaction of cosmic rays with nitrogen atoms. This carbon-14 is incorporated into carbon dioxide molecules, which are then taken up by plants during photosynthesis and subsequently passed on to animals that eat those plants.

When an organism dies, it stops taking in carbon-14, and the carbon-14 in its tissues begins to decay into nitrogen-14 at a known rate. By measuring the amount of carbon-14 that remains in the sample, scientists can determine how long it has been since the organism died.

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NH₃ with NH₄NO₃ equimolar mixture would result in a buffer with a pH less than 7. The answer is (d) .

A buffer solution is made up of a weak acid and its conjugate base or a weak base and its conjugate acid. The pH of a buffer solution depends on the pKa of the weak acid or the weak base and the ratio of the concentrations of the weak acid and its conjugate base, or the weak base and its conjugate acid.

In this case, NH₃ is a weak base with a pKa of 9.25, and NH⁴⁺ is its conjugate acid. NH₄NO₃ is a salt of NH4+ and NO³⁻, and it will dissociate in water to form NH⁴⁺ and NO³⁻. Since NH⁴⁺ is the conjugate acid of NH₃, it will react with any added OH⁻ ions, preventing the pH from rising above 7. Therefore, NH₃ with NH₄NO₃ would result in a buffer with a pH less than 7.

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In isoelectronic species, the species that have the least number of electrons will have the smallest radius. Therefore, K+ has the smallest radius amongst K, K+ and K-.The order of the radius of the given species can be given as follows:

K > K⁻ > K⁺

The effective nuclear charge experienced by the K atom is +1, as it has one valence electron which can shield 18 electrons. Therefore, the attraction between the valence electron and the nucleus is weak which makes the atomic size larger than that of K- and K+.

The effective nuclear charge experienced by the K-atom is +1, as it has one valence electron which can shield 17 electrons. The attraction between the valence electron and the nucleus is stronger than in K due to less screening effect by electrons. Therefore, the atomic size is smaller than that of K.

The effective nuclear charge experienced by the K⁺ atom is +1, as it has one valence electron which can shield 19 electrons. The attraction between the valence electron and the nucleus is maximum in K+ due to the absence of one electron from the 4s orbital. Therefore, the atomic size is the smallest among the given species.

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Answer:

C - they will have equal number of molecules.

Explanation:

The number of molecules in 2 liters of hydrogen gas compare with the number of molecules in 2 liters of oxygen gas at the same temperature and pressure because while the equal volumes of the gases are at the same temperature and pressure, it still has the same number of molecules.

The mass of the chlorine needed to react with 0.175g of gold is 94.6mg. This is calculated with the help of Mole concept.

The mass of Au is 0.175g

The atomic mass of Au is 197g

Atomic mass of chlorine atom= 35.5 g

The number of moles of gold is calculated by the expression,

        Number of moles= given mass/ molar mass

Putting all the values in the expression of moles we get,

number of moles of gold =  0.175 g/ 197 g/ mole

                                         = 0.000888 mole

From the balanced equation 2Au + 3 → 2AuC, if 2 moles of gold readily react with 3 moles of Cl.

0.000888 moles of gold will react will be,

             = 3/2 x 0.000888 x 35.5

Number of moles of Cl will be = 0.001332 moles

So, the mass of Cl that will react with Au is:

Mass of Cl = 0.01332 x 71

                  = 0.0946 g

we can convert the gram into milligram by multiplying 1000.

so it becomes, 0.0946 g  x 1000= 94.6mg

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The decreasing order of basic strength in aqueous solutions is NH3 > (CH3)3N > (CH3)2NH > CH3NH2.

NH3 is the strongest base among the four because it is a proton acceptor, so it can easily accept protons from the water molecules. (CH3)3N is the second strongest base because it has three methyl groups which help stabilize the negative charge generated after accepting the proton from water. (CH3)2NH is weaker than (CH3)3N because it has two methyl groups and can accept a proton from water but the stability of the negative charge created is lower. CH3NH2 is the weakest base because it has one methyl group and its negative charge is not as stable as the other bases.

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The groups present on a benzene ring can impact the success and regioselectivity of an electrophilic aromatic substitution

. The activation and directing effects of various groups present on a benzene ring are as follows: Moderately deactivating meta- director: Nitro (-NO2), Sulfonyl (-SO3H)Strongly activating ortho-/para- director: Amino (-NH2), Hydroxyl (-OH), Alkoxy (-OR), Aryl (-Ar), Alkyl (-R), Dialkylamino (-N (R) 2), Carboxyl (-COOH)Weakly activating ortho-/para- director: Chloro (-Cl), Bromo (-Br), Iodo (-I)Strongly deactivating meta- director: Carbonyl (-C (O) R), Cyano (-CN)Weakly deactivating ortho-/para- director: Methyl (-CH3), Ethyl (-C2H5), Phenyl (-C6H5)Therefore, the groups that best fit each activation and directing description are as follows: Moderately deactivating meta- director: Nitro (-NO2)Strongly activating ortho-/para- director: Amino (-NH2)Weakly activating ortho-/para- director: Chloro (-Cl)Strongly deactivating meta- director: Carbonyl (-C (O) R)Weakly deactivating ortho-/para- director: Methyl (-CH3)

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If some solid sodium hydroxide is added to a solu­tion that is 0.010–molar in (CH₃)₃CCl and 0.10–molar in NaOH, the reaction rate increases but k remains the same. Therefore, option D is correct.

In this scenario, when solid sodium hydroxide (NaOH) is added to a solution containing (CH₃)₃CCl and NaOH, a reaction between (CH₃)₃CCl and NaOH takes place. The balanced chemical equation for this reaction is:

(CH₃)₃CCl + NaOH ⇒ (CH₃)₃COH + NaCl

The reaction rate is determined by the concentration of the reactants. In this case, the concentration of (CH₃)₃CCl remains constant because only solid NaOH is added.

The rate constant depends on the specific reaction and the conditions under which it occurs. Since the temperature and volume remain constant, the rate constant (k) will also remain constant.

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Percentage by mass of chlorate 1 in calcium chlorate 1 is greater than the percentage by mass of chlorate 1 ions in Sodium chlorate.

An oxyanion is a polyatomic ion that contains at least one oxygen atom and one or more other elements, typically nonmetals. Examples of oxyanions include nitrate (NO3-), sulfate (SO42-), and phosphate (PO43-).

The molecular formula for calcium chlorate is Ca(ClO3)2, and the molecular formula for sodium chlorate is NaClO3.

To calculate the percentage by mass of chlorate 1 in calcium chlorate 1, we need to calculate the molar mass of Ca(ClO3)2 and the molar mass of chlorate 1.

Molar mass of Ca(ClO3)2 = 1 mol Ca + 2 mol ClO3

= 40.08 g/mol Ca + 2(35.45 g/mol Cl + 3(16.00 g/mol O))

= 238.06 g/mol

Molar mass of chlorate 1 = 35.45 g/mol Cl + 3(16.00 g/mol O)

= 99.45 g/mol

Now, we can calculate the percentage by mass of chlorate 1 in calcium chlorate 1:

% by mass of chlorate 1 in calcium chlorate 1 = (2 mol ClO3 x 99.45 g/mol) / (1 mol Ca(ClO3)2 x 238.06 g/mol) x 100%

= 83.3%

To calculate the percentage by mass of chlorate 1 in sodium chlorate, we only need to calculate the molar mass of NaClO3 and the molar mass of chlorate 1.

Molar mass of NaClO3 = 22.99 g/mol Na + 35.45 g/mol Cl + 3(16.00 g/mol O)

= 106.99 g/mol

Molar mass of chlorate 1 = 35.45 g/mol Cl + 3(16.00 g/mol O)

= 99.45 g/mol

Now, we can calculate the percentage by mass of chlorate 1 in sodium chlorate:

% by mass of chlorate 1 in sodium chlorate = (1 mol ClO3 x 99.45 g/mol) / (1 mol NaClO3 x 106.99 g/mol) x 100%

= 92.9%

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The energy emitted by 4.09 g of strontium chloride salt is 8.01 8.00 x 10⁻²⁴ kJ  (rounded to 2 decimal places).

To determine the energy of the emission at 641 nm, we can use the formula:

E = hc/λ

where;

First, we need to convert the wavelength from nanometers to meters:

641 nm = 641 x 10⁻⁹ m

Next, we can plug in the values and solve for E:

E = (6.626 x 10⁻³⁴J·s)(3 x 10⁸ m/s)/(641 x 10⁻⁹ m)

E = 3.10 x 10⁻¹⁹ J

To convert from joules to kilojoules, we divide by 1000:

E = 3.10 x 10⁻²² kJ

Now we can use the molar mass of the chloride salt of strontium to calculate the total energy released:

SrCl₂ has a molar mass of 158.53 g/mol, so 4.09 g is equivalent to:

n = 4.09 g / 158.53 g/mol

n = 0.0258 mol

The energy released by 0.0258 mol of strontium chloride at 100% efficiency is:

E_total = nE

E_total = (0.0258 mol)(3.10 x 10⁻²² kJ/mol)

E_total = 8.00 x 10⁻²⁴ kJ

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The given reaction is Zn + 2AgNO₃ → 2Ag + Zn(NO₃)₂. So 14.20 g of zinc nitrate would be produced when 16.2 g of silver was produced.

Let us calculate the number of moles of silver using the given data:

Hence, 14.20 g of zinc nitrate would be produced.

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When 1.00 kcal of heat is applied, the water sample's final temperature is T = 50.0°C + 40.0°C = 90.0°C.

The amount of energy required to raise a substance's temperature is measured in terms of specific heat. It is the amount of energy (measured in joules) required to increase a substance's temperature by one degree Celsius per gram.

We must first determine the water sample's original temperature. The formula is as follows:

Q = mcΔT

Inputting the values provided yields:

700.00 cal = 25.0 g x 1.00 cal/g °C x (50°C - 22.0°C)

When we simplify this equation, we obtain:

ΔT = 700.00 cal / (25.0 g x 1.00 cal/g °C) = 28.0°C

Therefore, the initial temperature of the water sample is 22.0°C + 28.0°C = 50.0°C.

Inputting the values provided yields:

1.00 kcal = 25.0 g x 1.00 cal/g °C x (T - 50.0°C)

When we simplify this equation, we obtain:

T - 50.0°C = 1.00 kcal / (25.0 g x 1.00 cal/g °C) = 40.0°C

Therefore, When 1.00 kcal of heat is applied, the water sample's final temperature is T = 50.0°C + 40.0°C = 90.0°C.

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The technique of bioremediation involves using local microorganisms to absorb or degrade different parts of spilled oil in maritime environments.

Bacteria can be utilised to remediate oil spills in the marine through bioremediation. Hydrocarbons, which are found in oil and gasoline, are one type of specialised contamination that can be bioremediated using particular bacteria.

As a result of bioremediation, there is no longer a need to collect and shift the harmful substances to another location because natural organisms may convert the toxic molecules into harmless simple molecules (Venosa).

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The percent error of your experimentally determined density is that is an error of 2.53%.

It can be calculated using the following equation:  Error % = (Experimentally Determined Value - Known Value)/Known Value x 100. So in your case, the equation would look like: Error % = (2.03 g/l - 1.98 g/l)/1.98 g/l x 100

This gives us an error of 2.53%.
The given value of density of CO2 is 2.03 g/L and the actual value of density of CO2 is 1.98 g/L. The percent error can be calculated using the below formula: Percent error = (|experimental value - actual value|/actual value) × 100Therefore, the percent error of experimentally determined density is Percent error = (|2.03 g/L - 1.98 g/L|/1.98 g/L) × 100= (0.05 g/L/1.98 g/L) × 100= 2.53%Thus, the percent error of the experimentally determined density is 2.53%.

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The molecules that can absorb light in the visible range are called pigments.

What is a pigment?

Pigments are compounds that absorb light and reflect only some wavelengths, resulting in color production.

The molecules are capable of absorbing specific wavelengths of light, giving them the potential to interact with photons.

The visible range of light is absorbed by pigments.

The term "chromophore" is used to describe the light-absorbing portion of a pigment molecule.

The portion of the molecule that absorbs light in the visible region is the chromophore.

The pigments' physical and chemical properties affect the absorption spectrum.

Pigments have a characteristic absorption spectrum, which is the range of wavelengths they can absorb.

When pigments absorb light, they become excited, and this energy is used to fuel biological processes.

Pigments are an essential component of photosynthesis, which is the process by which plants use sunlight to make energy.

Chlorophyll a, chlorophyll b, and carotenoids are examples of pigments in plants that absorb light energy from the sun. In humans, pigments such as melanin and hemoglobin are involved in coloration and oxygen transportation, respectively.

In conclusion, molecules that can absorb light in the visible range are called pigments.

The term "chromophore" is used to describe the light-absorbing portion of a pigment molecule.

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In a low pressure system, wind moves in a counterclockwise direction.

The effect wind have in a low pressure system is the Coriolis effect, which is the apparent deflection of moving objects (including wind) caused by the rotation of the Earth.

In a low pressure system, air rises from the surface, creating a region of lower atmospheric pressure at the center of the system. The surrounding higher pressure air then flows inwards towards the center to replace the rising air, and is deflected to the right (in the Northern Hemisphere) or left (in the Southern Hemisphere) by the Coriolis effect, resulting in the counterclockwise or clockwise circulation.

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When the mass of the solid increases, its volume will decrease, while when the volume of the liquid increases, its mass will increase. This is because the densities of these materials are determined by the amount of mass that can be held in a given volume.

The volume of the solid is directly proportional to its mass. It means, as the mass of the solid increases, its volume will also increase. Hence, we can predict that as the mass of the unknown solid increases, its density will also increase because the volume of the solid will increase, but the amount of space it occupies will not change.

The mass of the liquid is directly proportional to its volume. It means, as the volume of the liquid increases, its mass will also increase. Hence, we can predict that as the volume of the unknown liquid increases, its density will decrease because the mass of the liquid will increase, but the amount of space it occupies will also increase.

Therefore, we can conclude that the density of the unknown solid will increase with increasing mass, and the density of the unknown liquid will decrease with increasing volume.

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Option B Ar is the correct answer, which is not isoelectronic with the others. Therefore, S2−, Sc3+, Ti4+, and Ga3+ are isoelectronic.

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An object is said to be acted upon by an unbalanced force only when there is an individual force that is not being balanced by a force of equal magnitude and in the opposite direction.

An unbalanced force refers to a situation where the net force acting on an object is not equal to zero, which causes the object to accelerate in a particular direction. In other words, when the forces acting on an object are unbalanced, the object will either speed up, slow down, or change direction.

According to Newton's Second Law of Motion, the acceleration of an object is directly proportional to the force applied to it and inversely proportional to its mass. Therefore, when an unbalanced force acts on an object, it will experience an acceleration proportional to the force applied. an unbalanced force is a force that causes an object to accelerate in a particular direction due to an imbalance in the forces acting on it.

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Yes, the solubility of X in water at 17°C can be calculated using the given information. The solubility of X is 0.00118 kg/L.

To determine the solubility, we need to assume that all of the X is dissolved in the solution and use the solubility of X at 33°C.

Solubility of X at 33°C = 12.0 g/L = 0.012 kg/L

Volume of solution = 650 mL = 0.65 L

Therefore, the initial mass of X in the solution is: 0.012 kg/L × 0.65 L = 0.0078 kg

Now we need to determine the final mass of X in the solution after cooling. Since a precipitate has formed, we know that some of the X has come out of solution. Let's assume that all of the additional precipitate that formed came from X. Therefore, the final mass of X in the solution is: 0.0078 kg - 0.150 kg = 0.00765 kg = 7.65 g

Now we can use the final mass of X and the volume of the remaining liquid solution to calculate the solubility of X at 17°C.

Solubility of X at 17.9°C = mass of X / volume of solution at 17.9°C = 7.65 g / 0.65 L = 11.8 g/L = 0.0118 kg/L

Therefore, the solubility of X in water at 17°C is 0.0118 kg/L.

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The concentration of perchlorate ion in a perchloric acid solution with a pH of 3.158 can be calculated using the Henderson-Hasselbalch equation.Therefore, the concentration of perchlorate ion in the solution is 4.7 x 10^{-4} M.

Perchloric acid (HClO4) is a strong acid. A strong acid is a substance that almost entirely dissociates into ions when it dissolves in water. As a result, perchloric acid can be thought of as a source of hydrogen ions (H+) in solution.The concentration of hydrogen ions in solution can be determined using the pH of the solution. pH is the negative logarithm of the hydrogen ion concentration in moles per liter (mol/L) of solution.A pH of 3.158 corresponds to a hydrogen ion concentration of:10^{-3.158} = 6.59 x 10^{-4}  mol/LIn a perchloric acid solution, the perchlorate ion (ClO4) is the conjugate base of the acid. It can be concluded that the concentration of perchlorate ions (ClO4-) is equal to the concentration of hydrogen ions (H+) in the solution because the acid completely dissociates. Therefore, the concentration of perchlorate ions in a solution with a pH of 3.158 is 6.59 x 10^{-4} mol/L.Therefore, the answer is that the concentration of perchlorate ion in perchloric acid solution with a pH of 3.158 is 6.59 x 10^{-4 }mol/L.

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According to the octet rule, atoms tend to achieve eight electrons in the outermost shell. The reason behind this tendency is that the atoms try to achieve a stable electronic configuration, which is similar to the noble gases, whose electronic configuration is stable.

The arrangement of an atom's or molecule's (or other physical structure's) electrons in their atomic or molecular orbitals is known as the electron configuration in atomic physics and quantum chemistry. For instance, the neon atom's electron configuration is 1s2 2s2 2p6, which means that 1, 2 and 6 electrons, respectively, are present in each of the 1s, 2s, and 2p subshells. According to electronic configurations, each electron moves individually within an orbital while being surrounded by an average field produced by all other orbitals. Slater determinants or configuration state functions are used to mathematically describe configurations. For systems with a single electron, the laws of quantum mechanics state that each electron configuration has a specific amount of energy, and that under certain circumstances, electrons can switch between configurations.

Electronic configuration is the distribution of electrons in various shells or orbitals. According to the octet rule, the outermost shell of the atoms must contain eight electrons for the atom to be stable. The octet rule is one of the essential rules that govern the formation of chemical compounds. It states that atoms tend to combine with other atoms in such a way that they will have eight electrons in their outermost shell or valence shell, which makes them more stable. The octet rule explains that the atoms combine or share electrons to form a compound in a way that each atom achieves eight electrons in its valence shell.

The sharing or transfer of electrons from one atom to another results in the formation of ionic or covalent bonds, which is the basis of chemical reactions.

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The organic product that is expected to form when the following compound is treated with aqueous NaOH is RCOONa + H₂O .

The given compound is a carboxylic acid. When treated with aqueous NaOH, it will undergo a reaction known as neutralization to form the corresponding salt of the carboxylic acid.The reaction mechanism is as follows;The first step is the dissociation of NaOH into its ions

NaOH → Na⁺ + OH⁻

Secondly, there will be proton transfer between the carboxylic acid and the OH ion of NaOH as follows:

RCOOH + OH⁻ → RCOO⁻ + H₂O

With this, we can draw the organic product expected to form when the given compound is treated with aqueous NaOH as shown below:  OR  RCOONa + H₂O. The product formed is the salt of the given carboxylic acid.

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The cage size of zeolites is in the centimeters scale. This statement is false.

Zeolites are microporous aluminosilicate minerals that have a framework structure composed of aluminosilicate tetrahedra. These tetrahedra are linked together to form a 3-dimensional pore structure with uniform size and shape. Zeolites are widely used as adsorbents, catalysts, and ion-exchangers due to their unique properties such as high surface area, thermal stability, and molecular sieving properties.Cage size of zeolitesZeolites are known for their uniform pore size and shape. The size of the pores in zeolites ranges from 2-10 Å (angstroms), which is too small to be measured in centimeters. Therefore, the cage size of zeolites is not in the centimeters scale, but rather in the angstroms scale.

This means that zeolites have a cage size that is much smaller than a nanometer. Their pore size makes them selective towards certain molecules based on their size and shape.Properties of zeolitesThe properties of zeolites are attributed to their pore structure, which is composed of channels and cages. These channels and cages provide a surface area that is accessible to molecules that can be adsorbed. The size and shape of the pores in zeolites allow them to be selective towards certain molecules based on their size and shape. The high surface area of zeolites also makes them an effective catalyst for a wide range of reactions, including the conversion of petroleum feedstocks to gasoline and diesel fuel.

SummaryIn conclusion, the statement "The cage size of zeolites is in the centimeters scale" is false. Zeolites have a uniform pore size and shape that ranges from 2-10 Å, which is much smaller than a nanometer. This size allows them to be selective towards certain molecules based on their size and shape, and makes them an effective adsorbent, catalyst, and ion-exchanger.

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The following are the rules for recognizing and naming binary molecular compounds from their chemical formulas:
1. The first element in the chemical formula will be the name of the first element in the compound.
2. The second element in the chemical formula will be the name of the second element in the compound.
3. If the first element is a metal, the second element will end in “-ide”.
4. If the first element is a nonmetal, the second element will end in “-ate” or “-ite”.
5. The prefixes “mono-, di-, tri-, tetra-, penta-, and hexa-” are used to indicate the number of atoms of each element in the compound.
6. When the prefixes are not used, the number of atoms of each element is implied by the subscript.
7. If the subscript is written as a fraction, the fraction is changed to a whole number when forming the compound name.

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The rules for recognizing and naming binary molecular compounds are written focusing on the lower groups and the higher groups.

The rules for recognizing and naming binary molecular compounds from their chemical formulas are as follows:

1. The element with the lower group number is written first in the formula, and its full name is used.

2. The element with the higher group number is written second in the formula, and its stem name is used along with the suffix -ide.

3. The prefixes mono-, di-, tri-, tetra-, penta-, and so on are used to indicate the number of atoms present for each element in the molecule.

4. The prefix mono- is omitted for the first element in the formula.

5. The ending -a or -o in the prefix is omitted if the element name begins with a vowel, and only the vowel of the prefix is used in the compound name.

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Formerly weathered material is eroded by the power of the water. In addition, the rock it runs over is worn down and weathered. You now know that water can erode soil and weather rock. These processes alter the surface of the Planet.

The correct answer is :A.

Wind, moisture, and ice break apart large rocks and transport surface sediments. Years are usually required for weathering, erosion, and deposition to cause changes that are visible. Yet certain things change the surface of the Planet far more quickly than others. These consist of volcanic eruptions, earthquakes, and landslides.

By weathering and erosion, water flow modifies the properties of the terrain. The role of the ocean and other interactions determine region weather patterns and have an impact on climate. The unique properties of water, both physically and chemically, have a profound effect on the motions of the planet.

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124.61 grams of NH₃ form from 22 g of H₂.

Molar mass is the mass of one mole of a substance. It is usually expressed in units of grams per mole (g/mol). For example, the molar mass of carbon is 12.01 g/mol, which means that one mole of carbon has a mass of 12.01 grams. Molar mass is useful in chemistry because it allows us to convert between mass and moles of a substance, which is important for many chemical calculations.

The balanced chemical equation is:

3H₂ + N₂ -----> 2NH₃

From the equation, we can see that 3 moles of H2 react to form 2 moles of NH₃.

The molar mass of H₂ is 2 g/mol, so 22 g of H₂ is:

22 g H2 x (1 mol H2/2 g H2) = 11 mol H2

Using the mole ratio from the balanced equation, we can calculate the number of moles of NH3 produced:

11 mol H2 x (2 mol NH3/3 mol H2) = 7.33 mol NH3

Finally, we can convert moles of NH3 to grams using its molar mass:

7.33 mol NH₃ x (17 g NH3/1 mol NH3) = 124.61 g NH₃

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In this type of redox process, zinc oxide is reduced while carbon is oxidised.

The reaction between carbon and zinc oxide (ZnO) is a chemical reaction that results in the production of zinc and carbon dioxide. The reaction is a form of a redox reaction, where carbon is oxidized while zinc oxide is reduced.

The balanced chemical equation for the reaction is:

C + ZnO → Zn + CO2

In this reaction, solid carbon reacts with solid zinc oxide to form solid zinc and gaseous carbon dioxide. The reaction takes place at high temperatures, typically above 1200°C.

The reaction is important in metallurgy, where it is used to extract zinc metal from its ore, zinc oxide. The reaction is also used in the production of carbon dioxide gas, which is used in various industries such as food and beverage, as well as in fire extinguishers.

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Answer: Centimeters

Explanation: no explanation needed