what force was applied to an object if 35 j of work was done and the object moved 7 m?

The carbon–carbon bonds in naphthalene are not of the equal length. The bonds C₁–C₂, C₃–C₄, C₅–C₆ and C₇–C₈ are about 1.36 Å in length, whereas the other carbon–carbon bonds are about 1.42 Å long.

Naphthalene is two benzene rings joined together. It has three resonance structures. The double bonds present in the benzene ring are delocalized by intramolecular electron transfer to achieve stability. This is called resonance and these structures can be called resonance structures.

The C-C bond length in naphthalene is not the same. This is because naphthalene has a fused ring structure in which two benzene rings are fused. Single and double bonds are alternating, so the lengths of single and double bonds are different.

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The given question is incomplete and the complete question is

A sample of 0.0606 mol of iron(III) chloride FeCl₃ was dissolved in water to give 35.4 mL of solution. What is the molarity  of the solution?

The molarity of the solution is 0.0017 mol/L

The molarity or concentration can be described by using the moles of the solute per liter of known aqueous solution and which is the volume the molarity also is designated as molar concentration

Here given data is

Iron(III) chloride = 0.0606 mol

Water means volume = 35.4 mL

We have to find molarity of the solution = ?

Molarity = moles of solute/volume of solution

Molarity =  0.0606 mol / 35.4 mL

Molarity = 0.0017 mol/L

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Florine (f) has the highest boiling point of the halogen elements

The boiling point of a compound is influenced by several factors including Mr and intermolecular bonds. The greater the Mr and the intermolecular bonds. The bigger the Mr, the higher the boiling point. For acid halides, the order of boiling points from highest to lowest is:

HF>HI>HBr>HCl

In HF compounds the influence of intermolecular bonds is very strong.

The trend of the melting and boiling points of the halogens can be explained as follows.

The halogen molecule (X2) is nonpolar, thus the attraction between halogen molecules is a dispersion force. As is known, the dispersion force increases in accordance with the increase in molecular mass (Mr). That is why the melting and boiling points of the halogens increase from top to bottom in the periodic table of elements.

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The bleach was in excess compared to the dye in the reaction between bleach and dye.

In the textile business, bleach is used to bleach cotton and linen. It is also used to bleach wood pulp in the paper industry and to bleach laundry.

It is the primary component of a solution that contains between 3 and 6 percent sodium hypochlorite (NaOCl), along with trace amounts of sodium hydroxide, hydrogen peroxide, and calcium hypochlorite.

A form of base that works particularly well at eliminating stains and colors is chlorine bleach.

A plot of ln(Abs) vs. time shows a straight line, indicating that the order with regard to the dye is "first order." The sequence of the reaction with respect to the bleach can be determined by looking at the rate constants and bleach volume.

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The value of the gas constant will be high due to the increase in gas pressure.

Solution:

According to Ideal Gas Law, PV=nRT

where, P = Gas pressure (in atmospheres),   V= Gas Volume (in Liters),  n = number of moles of gas sample T=  Gas Temperature (in Kelvins), R = Gas Constant.

[tex]\therefore R=\frac{(P\ast V)}{(n\ast T)}[/tex] ....... (1)  

P = [tex]P_{atm}[/tex] - [tex]P_{water vapor}[/tex]

where = Atmospheric pressure[tex]P_{water vapor}[/tex] = Partial pressure of water vapor.

If students forgot to include the vapor pressure of water in the calculation of gas constant then the magnitude of pressure due to gas(P) will be more because they are not substracting the Water vapor value from the [tex]P_{atm}[/tex]to get the actual P value.

The value of the gas constant will be high due to the increase in gas pressure.

The ideal gas constant R can be found experimentally by determining the number of moles of gas occupying a given volume of measurement at a known pressure and temperature. This information is obtained in this laboratory by collecting the oxygen produced by the decomposition of potassium chlorate over water. The water level inside the tube should match the water level outside the tube.

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When a 25.0-ml sample of HCl is titrated with 0.350 m KOH. 34.6 ml of the base are required to reach the equivalence point. The concentration of HCl is 0.4844 M

The concentration of a substance is the amount of solute contained in a given volume of solution. Concentration is usually expressed in terms of molarity, expressed as the number of moles of solute in 1 L of solution. Solution concentration is the degree to which a solute is dissolved in a given amount of solvent or solution. An enriched response is a response that contains a very large amount of solute.

Concentration of HCl can be calculate as follows:

Titration is the process of determining the amount of substance A by adding measured increments of substance B, the titrant with which it reacts, until exact chemical equivalence is reached (equivalence point).

The formula (Macid x V acid =Mbase x Vbase ) represents the titration formula in chemistry.

M acid x V acid =Mbase x Vbase

Macid  =Mbase x Vbase

                  V acid

Macid  = 0.350 M x 34.6mL

                  25mL

M HCl = 0.4844 M

Therefore, when a 25.0-ml sample of HCl is titrated with 0.350 m KOH. 34.6 ml of the base are required to reach the equivalence point. The concentration of HCl is 0.4844 M

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Answer:

Explanation:

The bonding in NaCl involves a sodium ion and a chloride ion while the bonding in sodium metal involves sodium ions and a sea of electrons.

NaCl involves sodium and ion and chloride ion held together by an ionic bond. The sodium atom transfers an electron to chlorine atom to yield the chloride ion. This ion pair exists in the compound called sodium chloride.

In sodium metal, the sodium cations interact electrostatically with a sea of electrons in a metallic bond. Hence, while the bonding in sodium chloride involves an ion pair, the bonding in sodium metal involves sodium ions and a sea of electrons.

Rotation refers to the movement of an object rotating around its own axis. Rotation refers to the orbital motion of an object around another object.

When the earth rotates it moves or revolves around the sun. The Earth's orbit around the Sun is called an orbit. It takes one year or 365 1/4 days for the Earth to make a complete orbit around the Sun. The moon revolves around the earth as the earth revolves around the sun. This is because the earth accelerates and decelerates as it orbits the sun.

Most of the apparent motion of the Sun comes from the Earth's rotation. As our planet rotates, the sun, moon, and all the stars appear to move from east to west, as if they were spinning in an office chair, while the walls all move in the opposite direction. It looks like you are. It is important to understand the difference between twists and turns. Rotating an object around its internal axis is called rotation. When an object orbits its outer axis it is called rotation.

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A barium and a krypton nucleus were found in two incredibly unstable fission pieces. These pieces very instantly split into barium-144 and krypton-89 after releasing three neutrons each.

The main fissile elements are uranium-235 (0.7 percent of naturally occurring uranium), plutonium-239, and uranium-233, the latter two being synthesised from uranium-238 and thorium-232, respectively, which are fertile elements.

A reactor may be fueled with a variety of materials, although uranium is the most often utilised fuel. Oceans contain uranium, which is widely distributed around the earth and is also rather abundant. You can also utilise other fuels, such thorium and plutonium.

Today, uranium is utilised to generate energy from commercial nuclear reactors and to create isotopes for use in industry and medicine.

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The equation associated with the lattice energy of the compound is: -

Li2O (s)---->2 Li+ (g) + O2- (g)

Lattice energy is defined as the energy required for the conversion of one mole of ionic solid constituents to ionic gaseous constituents. Lattice energy is a measure of the strength of the ionic bonds in an ionic compound.

       It provides insight into several properties of ionic solids including their volatility, their solubility, and their hardness.

     The lattice energy of an ionic solid cannot be measured directly. However, it can be estimated with the help of the Born-Haber cycle. Generally, this quantity is expressed in terms of kilojoules per mole (kJ/mol)

      Lattice energy gives us the idea for the entire reaction and its compounds.

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Rsa and diffie-hellman are two protocols that tls is capable of using for key exchange.

TLS encrypts the TCP header and payload. The packet payload stays encrypted the entire way since encryption is done in the protocol on one end system and decryption in the protocol on the other end system.

Both IPv4 and IPv6 networks use IPsec to authenticate and encrypt data packets. A packet's IP header contains IPsec protocol headers, which specify how a packet's contents are handled, including how it is delivered across a network and routed.

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Answer:

It's B

Explanation:

at ground state the atomic number or proton number is equal to the electron number

Normally

the trend for electronic configuration goes as

1s² - 2S² - 2P⁶ -3S² - 3P⁶ -4S² - 3D¹⁰ and so on

(with each number representing a particular energy level and we go from lower to higher energy level)

but for this case we have sulfur

so we go from

1s² - 2S² - 2P⁶ - 3S² - 3P⁴ (I think that was what was supposed to be there not just 2P)

you fill from the lowest energy level to the highest and stop filling when you run out of electrons

since we only had 16 electrons I stopped at 3P⁴

Answer: Japenease pls

Explanation:

Kp is the equilibrium constant of the reaction in accordance with the partial pressure of the gas. The mass percentage of calcium carbonate is 2.5%.

What is the mass percentage?

The mass percentage is the ratio of the moles reacted to that of the moles present initially multiplied by  100.

The reaction of calcium carbonate can be shown as,

CaCo3 ----------------->  CaO   + CO2

The formula for the equilibrium constant is given as,

Kp= Kc[tex](RT)^{n}[/tex]

Here,

n = 1

Gas constant (R) = 8.314 J /mol K

Temperature (T) = 1073 K

Kp = 1.16

      = 1.3 x [tex]10^{-4}[/tex]

Substituting values in the above equation:

             x =0.005

From the ICE table of the reaction the value of moles of calcium carbonate (x) is calculated as:

Mass% = 0.005/0.2x 100%

              2.5%

Therefore, 2.5% is the mass percentage.

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CaBr₂ (aq) + Na₂SO₄ (aq) ⟶ 2NaBr (aq) + CaSO₄ (s) is the correct equation.

Salt metathesis reactions, also called double displacement reactions, are chemical processes that involve the exchange of bonds between two reacting chemical species, resulting in the formation of products with similar or identical bonding relationships.

Exchange of ions among the reactants in order to form two new compounds is the reason that the reactions are known as double displacement. Double displacement reactions usually result in the formation of products that are precipitates. The double displacement reaction takes the form:

AB + CD → AD + CB

The precipitate is in the solid state and is distinguished from other products so that it can be separated or removed from the reaction

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Since the given question is incomplete, the complete question is as follows:

"Determine the type of each chemical equation describing a precipitation reaction. C a 2 + ( a q ) + S O 4 2 − ( a q ) ⟶ C a S O 4 ( s ) Choose... C a B r 2 ( a q ) + N a 2 S O 4 ( a q ) ⟶ 2 N a B r ( a q ) + C a S O 4 ( s ) Choose... C a 2 + ( a q ) + 2 B r − ( a q ) + 2 N a + ( a q ) + S O 4 2 − ( a q ) ⟶ 2 N a + ( a q ) + 2 B r − ( a q ) + C a S O 4 ( s ) Choose..."

The concentration of hydrogen ions increases as a result of a series of chemical reactions that take place when CO2 is absorbed by saltwater.

The seawater's acidity rises as a result, and carbonate ions become relatively less common. Seawater absorbs carbon dioxide, which is present naturally in the atmosphere. Carbonic acid (H2CO3) is created when water and carbon dioxide mix. This weak acid dissociates into hydrogen ions (H+) and bicarbonate ions (HCO3-). Carbonate from the sea is used by marine life to create their shells and skeletons. Carbonate is less readily available for animals to build their shells and skeletons as seawater becomes more acidic. Shells and skeletons may dissolve in highly acidic environments.

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The name of the medicine to be prescribed, its dosage or strength, or the names and dosages of each ingredient to be added to a compound are all listed in the body of such prescription, or inscription.

A prescription is a piece of paper around which your doctor orders medication and which you provide to a pharmacist or chemist in order to obtain the medication. You must visit a pharmacy with your prescription. 2. A noun that counts.

Simple prescriptions are those that are written for only a single component as well as prefabricated product and don't need the pharmacist to compound or admix it. 2. Compound or complicated prescriptions: Those that need compounding and are written for some more than one component.

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In noncyclic photophosphorylation, electrons flow in a one way path from water to NADP

Non cyclic photophosphorylation process which result in the movement of the electron in a non cyclic manner for synthesizing ATP molecule using the energy from excited electron provided by photosystem 2 us called as non cyclic photophosphorylation

And during non cyclic photophosphorylation the electron released by P700 are carried by primary acceptors and are finally passed on the NADP and the electron combine with the proton H⁺ which is produced by splitting up of the water molecule and reduced NADP to NADPH₂ and this process require light to be absorbed twice

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They would all exhibit the same pressure. The same number of moles of each gas are put in various containers, thus the gas will take up the same amount of space.

We could see the gases at the same temperature now. Since their volumes are equal, they will all have the same pressure. Now, by performing the following straightforward math, we can better comprehend this:

For H2:

Number of mole (n) = 1 mole

Volume (V) = 22.4L

Temperature (T) = 298K

Gas constant (R) = 0.0821 atm.L/Kmol

Pressure =..?

PV = nRT

Divide both side V

P = nRT /V

P = 1 x 0.0821 x 298 / 22.4

P = 1 atm

Therefore, H2 has a pressure of 1 atm.

For N2:

Number of mole (n) = 1 mole

Volume (V) = 22.4L

Temperature (T) = 298K

Gas constant (R) = 0.0821 atm.L/Kmol

Pressure =..?

PV = nRT

Divide both side V

P = nRT /V

P = 1 x 0.0821 x 298 / 22.4

P = 1 atm

Therefore, N2 has a pressure of 1 atm

For O2:

Number of mole (n) = 1 mole

Volume (V) = 22.4L

Temperature (T) = 298K

Gas constant (R) = 0.0821 atm.L/Kmol

Pressure =..?

PV = nRT

Divide both side V

P = nRT /V

P = 1 x 0.0821 x 298 / 22.4

P = 1 atm

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Acids give hydrogen ions (H+) to water when they are dissolved in it. The hydrogen atoms that make up hydrogen ions have just one proton left after losing an electron, giving them a positive electrical charge.

Acids and bases dissolve in water and inhibit water dissociation by increasing the concentration of either protons or hydroxide ions, one of the byproducts of water self-ionization.

In an aqueous solution, strong acids and bases are completely ionised. In an aqueous solution, weak acids and bases ionise to a lesser extent. The acidity or basicity of their aqueous solutions can be changed by the salts of weak acids or bases.

Water has the capacity to combine to function as both an acid and a base simultaneously.

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Water weighs is 12.371 g.

Mevoporation dish weighs 1.135 g.

Mevoporating dish plus a sample of MHydrate equals 25.637g

Mfirst heated sample plus Mevoporating dish = 16.428g

Mevoporation dish plus a second hot sample equals 13.266g

Serving of mevoporating = 1.135g

Mhydrated sample + Mevoporating dish = 25.637g

Mevoporating dish g = 25.637-1.135g=24.502g where Mhydrate sample is equal to 25.637g.

Serving of mevoporating = 1.135g

Second heated sample from a mevoporating dish weighs 13,266g

Msalt anhydrous = Msecond heated sample = 13.266-Mevoporating dish g = 13.266-1.135g = 12.131g

Msalt anhydrous = 24.502-12.131g=12.371g where Mwater = Mhydrate sample

12.371 g for Mwater

The sample and the dish have a combined mass of 13.266 g following a second heating session. After the second time, the pupil ends the heat/cool/weigh cycle.

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The functional group that is formed when an aldehyde and an alcohol are mixed together in the presence of a catalytic amount of acid will be an Acetal.

Aldehyde may be defined as the functional group having the suffix as -al and represented as RCHO. In this functional group the carbon atom is in double bond with the oxygen atom satisfying the valency of each atom. Alcohols are functional groups having the suffix as -ol and represented as ROH. They are very important and have many characteristic features. Acetals are functional groups in which the carbon atom is bonded with two -OR groups. They are produced when alcohol and aldehyde are mixed in presence of Hydrochloric acid. If the reaction takes place without the presence of HCl, then Hemiacetal will be formed that is carbon atom will have one -OR group.

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The theoretical yield of iron (55.845 g/mol) when 10.0 g Fe₂O₃ (159.69 g/mol) reacts with excess carbon (12.01 g/mol) is 6.99 g.

the balance equation is given as :

Fe₂O₃   +  3C     ---->    2Fe   +   3CO

the mass of Fe₂O₃  = 10 g

molar mass of Fe₂O₃  = 159.69 g / mol

the number of moles of Fe₂O₃  = mass / molar mass

                                                    = 10 / 159.69

                                                    = 0.062 mol

1 mole of Fe₂O₃  produce 2 mole of Fe

0.062 mol of Fe₂O₃  = 2 × 0.062 = 0.125 mol of Fe

mole of Fe = 0.125 mol

molar mass of Fe = 55.8 g/mol

mass of Fe = 0.125 × 55.5

                  = 6.99 g

The theoretical yield = 6.99 g

Thus, The theoretical yield of iron (55.845 g/mol) when 10.0 g Fe₂O₃ (159.69 g/mol) reacts with excess carbon (12.01 g/mol) is 6.99 g.

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(a) belongs to Group IIA.

(b) belongs to  Group XVIA.

(c) belongs to Group IA.

Ionic compounds are made up of charged particles called ions, which form when an atom (or group of atoms) gains or loses an electron. Cations are positively charged ions, whereas anions have a net negative charge. Covalent or molecular compounds are produced when two elements join together to form molecules and share electrons.

Part (a): X must be a metal for the compound XF2. Since there are two fluorine atoms and fluorine is a monovalent element, X must have a valency of two.

X thus belongs to group 2 as a result.

Part (b): X must not be a metal in the complex MgX. Given that magnesium is divalent and only contains one magnesium atom, X must have a valency of two.

X thus belongs to group 16 as a result.

Part (c): X must be a hydrogen atom or a metal for the compound X2SO4. Given that there are two X atoms and that sulfate is divalent, X must have a single valency.

X thus belongs to group 1 as a result.

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Stirring is only required to dissolve sucrose sugar in water.

What is solubility?

Solubility in chemistry refers to a chemical's capacity to dissolve in another substance, the solvent, to produce a solution. The opposite characteristic, insolubility, refers to the solute's incapacity to create a solution. The solvent is often a solid or a liquid, whereas the solute may be a solid, liquid, or gas. Both could be solution-based compounds or pure chemicals. Except in extremely rare circumstances, gases are always miscible in all ratios, and the only way a solid or liquid may be "dissolved" in a gas is by first becoming gaseous.

Temperature, pressure, and the makeup of the solute and solvent (including their pH and the presence of additional dissolved materials) are the key determinants of solubility.

Hence, stirring is only required to dissolve sucrose sugar in water.

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The correct answer with the correct number of significant figures is 1.554 * 10²⁴; the correct option is B.

Significant figures refer to each of the digits of a number that are used to express the given number to the required degree of accuracy, beginning from the first non-zero digit.

Significant figures are used to express the accuracy of a given calculation.

Significant figures are also used in the approximation of numbers.

In determining the number of significant figures to be used for a calculation, the level of accuracy required as well as the highest number of significant figures used in the calculation are considered.

Considering the given calculation:

6.022 × 1023 × 2.58

The highest significant figures of number in the calculation is four significant figures.

Hence, the answer will have four significant figures.

6.022 × 10²³ × 2.58 = 1.554 * 10²⁴

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35g

Noting the mass of scientific tools such as beakers can help us take the mass of liquids and other samples that cannot be measured on their own.

Mass of the Liquid

To find the mass of the liquid, we have to know the mass of the beaker. Then, we can subtract the mass of the beaker from the mass of the liquid and beaker combined. This will leave the mass of the liquid.

The liquid has a mass of 35g.

Significant Figures and Units

Whenever doing scientific calculations, it is important to include significant figures and units.

Significant figures show the accuracy of a measurement. When, subtracting numbers, round to the smallest number of decimal places. Neither measurement has decimal points, thus the answer also should not have a decimal point. Thus the answer is just 35.

Then, make sure you have units. Since the original measurements are in grams, the answer should also be in grams. So, the final answer is 35 grams.

The total number of valence electrons in NBr₃ is 26 valence electrons.

The given molecule is nitrogen tribromide ,  NBr₃

no. of nitrogen atoms in  nitrogen tribromide is 1 . nitrogen atomic number is 7 , the number of electrons in the valence shell = 5

total number of valence electron in nitrogen = 1 × 5 electrons = 5 electrons

number of bromine atom in  nitrogen tribromide is = 5. bromine atomic number is 35 , number of electrons in the outermost shell = 7

total no. of valence electron in bromine = 3 × 7 = 21

Total number of valence electrons in the molecule, NBr₃

NBr₃ = 5 electrons + 21 electrons = 26 electrons.

Thus, The total number of valence electrons in NBr₃ is 26 valence electrons.

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2.89 moles of gas escaped from the system.

What is ideal gas law ?

The ideal gas law (also called the perfect gas law), the relationship between the pressure P, volume V, and temperature T of a gas in the boundary region between low pressure and high temperature. Gas molecules move almost independently. each other. In such cases, all gases obey an equation of state known as the ideal gas law:

PV = nRT, where n is the number of moles of gas, R is the universal (or complete) gas constant, 8.31446261815324 Joules/ Kelvin/Kelvin (The universal gas constant is defined as Avogadro's number NA multiplied by Boltzmann's constant k.) In the International System of Units, energy is joules, volume is cubic meters (m3), force is newtons (N), and pascals Pressure in (Pa), where 1Pa = 1N/m2. A force of 1 Newton moving a distance of 1 meter does 1 Joule of work. Therefore, the product of both PV and nRT has the dimension of work (energy).

n1=12.11

n2 =15

escaped gas moles = n2-n1=2.89

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