Please answer correctly, I’ll mark your answer as brainliest.

The given reaction is a double displacement reaction where, Cl and NO₃ group displaces between and sodium and silver atoms. The complete reaction is written as follows:

[tex]\rm NaCl (aq) + AgNO_{3} (aq) \rightarrow AgCl (s) + NaNO_{3} (aq)[/tex].

There are various kinds of reactions classified based on the way of regrouping of atoms in the reactants.  In a double displacement reaction, two species from the reactant side are displaced of each other.

The reaction between sodium chloride and silver nitrate gives sodium nitrate in aqueous form and the precipitate of silver chloride. Here the groups nitrate and chlorine displaces between sodium and silver. Hence it is a double displacement reaction.

The net reaction represents the formation of the silver chloride precipitate.

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The final pressure of the gas is 914 torr. This is obtained by the use of the ideal gas equation and its parameters.

The ideal gases are those kind of gases to which we can be able to apply the ideal conditions. Let us recall that the laws of the ideal gas pertains to the gases that are in the ideal condition. This implies that the gases are at a low pressure and a high temperature.

Now we have that;

Initial pressure P1 = 735 torr

Final pressure of the gas P2 = ??

Initial temperature of the gas T1  =  6 ∘C or 279 K

Final temperature of the gas T2 =  74 ∘C  or 347 K

Then by the use of the formula;

P1/T1 = P2/T2

P1T2 = P2T1

P2 = P1T2/T1

P2 = 735 *  347 /279

P2 = 914 torr

The pressure that the gas would have at the end of the process is 914 torr.

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The ppm concentration of the sodium chloride solution, given that 7.0×10⁻³ g is dissolved with a volume of 2 L is 60 ppm

To obatin the concentration in ppm, we'll begin by obtaining the mole of the sodium chloride in the solution. This can be obtained as follow:

Mole = mass / molar mass

Mole of sodium chloride = 7.0×10⁻³ / 58.5

Mole of sodium chloride = 0.00012 mole

Finally, we shall determine the concentration in ppm. This can be obtained as follow:

Concentration (in ppm) = (mole of solute / volume) × 10⁶

Concentration (in ppm) = (0.00012 / 2) × 10⁶

Concentration (in ppm) = 60 ppm

Thus, we can conclude that the ppm concentration is 60 ppm

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How does the arrangement of the molecules differ in each state of matter?

Particles in a: gas is well separated with no regular arrangement. liquid are close together with no regular arrangement. solid are tightly packed, usually in a regular pattern.

How will you differentiate the compressibility of the three phases of matter?

Compressibility: It is the property of matter in which its volume is decreased by applying force.

Thus, different states of matter are affected by the arrangement of molecules.

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The rock sample on the left is basalt, a type of igneous rock. Heat and intense pressure changed the basalt into blueschist, a type of metamorphic rock glaucophane schist

Blueschist facies is determined by the particular temprature and pressure condition required to metamorphose basalt to form blueschist and felsic rock and pelitic sediment which are subjected to blueschist facies condition will form different mineral assemblages then metamorphosed and blueschist facies rock are generally formed in subduction zones where oceanic crust is being stuffed into a trench that will become true blueschist once they were pressure cooked and also called glaucophane schist and is a metavolcanic rock that with similar composition at high pressure and low temprature

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The mass of nitrogen, N₂ that contains 1.81×10²³ molecules is 8.42 g

From Avogadro's hypothesis,

6.02×10²³ molecules = 1 mole of nitrogen, N₂

But

1 mole of nitrogen, N₂ = 28.02 g

Thus,

6.02×10²³ molecules = 28.02 g of nitrogen, N₂

With the above information, we can obtain the mass of nitrogen, N₂ that contains 1.81×10²³ molecules as follow:

6.02×10²³ molecules = 28.02 g of nitrogen, N₂

Therefore,

1.81×10²³ molecules = (1.81×10²³ × 28.02) / 6.02×10²³

1.81×10²³ molecules = 8.42 g of nitrogen, N₂

Thus, we can conclude that the mass of nitrogen, N₂ is 8.42 g

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If 6.92 mol of C₅H₁₂ reacts with excess O₂, number of moles of CO₂ will be produced by the following combustion reaction is 34.6 mol.

The balanced reaction is given as:

C₅H₁₂   +   8O₂   --->   5CO₂   +    6 H₂O

Moles of C₅H₁₂  = 6.92 mol

1 mole of C₅H₁₂  produces 5 moles of CO₂

therefore , 6.92 mol of C₅H₁₂ = 5 × 6.92 mol

                                                = 34.6 mol of CO₂

number of moles of CO₂  = 34.6 mol

Thus, If 6.92 mol of C₅H₁₂ reacts with excess O₂, number of moles of CO₂ will be produced by the following combustion reaction is 34.6 mol.

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Option B: an open system

Here's some examples

CH, OH, FH, etc

To see the number of atoms of an element in a given molecule we need to multiply stoichiometry to the number that is written on the foot of the element that is stoichiometry. First image represent oxygen element and second picture represent fluorine element.

Atom is the smallest particle of any element, molecule or compound. Atom can not be further divided. Atoms contains nucleus in its center and electron that revolve around the atom in fixed orbit.

In first image the number of protons are 8 which is of oxygen element. In second image the number of protons are 9 which is of Fluorine element.

Therefore,  first image represent oxygen element and second picture represent fluorine element.

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114.5 g is the total mass of the beaker .

Total mass of beaker=53.10g+5.348g+ 56.1g

Total mass=114.5 g

Mass is used in physics to specific inertia, a fundamental function of all remember. basically, it's far a mass of rely's resistance to changing its course or pace in response to the software of a force.

The exchange that an applied force produces is smaller the extra mass a body has. The kilogram, the unit of mass within the international machine of gadgets, corresponds to 6.62607015 1034 joule seconds using Planck's consistent (SI). One joule is produced by way of multiplying one kilogram by means of one rectangular meter per 2d.

The kilogram is decided by genuine measurements of Planck's regular on account that the second one and the meter have formerly been described in phrases of other bodily constants.

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Answer:

depends on the type of insulin, but your normal low everyday kind strach is stronger then insulin is stronger than cellulose

The pressure is 6.215mmHg

Pressure is force per unit area of surface

Here given data is

Initial volume V₁ = 29.1 L

Initial temprature T₁ = 306 K

Initial pressure P₁ = 719 mm Hg

Final volume V₂ = 4.1 L

Final temprature T₂ =  372 K

Final pressure P₂ = ?

We have to find final pressure = ?

So the formula is

P₁V₁/T₁ = P₂V₂/T₂

719 mm Hg×29.1 L/ 306 K = P₂×4.1 L/372 K

68.37 =  P₂×0.011

P₂ = 68.37/0.011

P₂ = 6.215mmHg

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The empirical formula of the metal bromide, given that 22.46 grams sample of cobalt is heated in the presence of excess bromine is CoBr₃

We'll begin by obtaining the mass of bromine in the compound. This can be obtained as follow:

Mass of bromine = (Mass of metal bromide) - (Mass of cobalt)

Mass of bromine = 113.8 - 22.46

Mass of bromine = 91.34 grams

Finally, we shall determine the empirical formula of the metal bromide. Details below:

Divide by their molar mass

Co = 22.46 / 58.9 = 0.381

Br = 91.34 / 79.9 = 1.143

Divide by the smallest

Co = 0.381 / 0.381 = 1

Br = 1.143 / 0.381 = 3

Thus, we can conclude that the empirical formula of the metal bromide is CoBr₃

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There are moles of Mn in a sample of Mn that contains 3.80 × 10²⁴ atom is 6.31 moles.

The number of moles in a substance can be calculated by dividing the number of atoms of that substance by Avogadro's number, which is equivalent to 6.02 × 10²³ atoms.

No of moles = no of atoms ÷ 6.02 × 10²³

According to this question, there are 3.80 × 10²⁴ atoms in manganese element. The number of moles in this substance is as follows:

no of moles = 3.80 × 10²⁴ ÷ 6.02 × 10²³

no of moles = 6.31 moles

Therefore, 6.31 moles is present in 3.80 × 10²⁴ atoms of manganese.

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Trace evidence in the above case refers to the piece of the suspect’s hair that was found on the victim’s body.

Trace Evidence Analysis is the field  of forensic science that deals with the minute transfers of materials that cannot be seen with the human eye. The handling and analysis of trace evidence requires care and specialized techniques. Trace evidence may provide a link between the victim and a suspect, a victim and a scene, or the suspect and a scene.

Thus with the help of trace trace evidence we can identity the suspect.

It is not uncommon for people to shed hair throughout the day.  The ease of transfer of this type of evidence makes it very useful in criminal investigation.  Forensic testing of hairs involves identification of human versus animal hair and also the comparison of microscopic features to differentiate between hairs from different individuals.  Once comparison is completed, hair with follicular tags can be sent to the Nuclear DNA Unit for analysis.

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Energy is needed to break bonds, is the best exemplifies the interaction of energy with chemical bonds.

What is chemical bond?
An enduring attraction between ions or atoms known as a chemical bond is what allows molecules and crystals to form. The bond may be created by the sharing of electrons in covalent bonds or by the electrostatic attraction of two oppositely charged ions, as in ionic bonds. Covalent, ionic, and metallic bonds are examples of "strong bonds" or "primary bonds," whereas dipole-dipole interactions, the London dispersion force, and hydrogen bonding are examples of "weak bonds" or "secondary bonds." The sharing or exchange of electrons between the involved atoms results in strong chemical bonds. The negatively charged electrons that surround the nucleus as well as the positively charged protons that make up a nucleus are attracted to one another because opposite electric charges are attracted to one another.

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The aluminum use for a window frame , copper for wiring and iron for nail because of they are malleable , ductile, good conductor of electricity and high energy efficiency.

The aluminum is used for window because aluminum is malleable and the aluminum have high energy efficiency.  The copper is used as for the wiring because the copper is the good conductor of the electricity. The iron is use for the nail because iron is hard and have the tendency to resist the corrosion.

Thus, The aluminum use for a window frame , copper for wiring and iron for nail because of they are malleable , ductile , good conductor of electricity and high energy efficiency.

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Answer:

0.714 m (app.)

Explanation:

use ∧ = c/f

here, ∧ = wavelength

c = velocity of light = 3 × 10^8 m/s

f = frequency = 4.2 × 10^8 Hz

The molecular formula is (CH2O)5 when the scale factor is 5 and the empirical formula is CH2O.

Considering the question given above, the following data were obtained:

Empirical formula = CH₂O

Molar mass of compound = 150 g/mol

Scaling factor (n) =?

Empirical formula × n = molar mass

[CH₂O]n = 150

[12 + (2×1) + 16]n = 150

[12 + 2 + 16]n = 150

30n = 150

Divide both sides by 30

n = 5

Therefore, the scaling factor is 5

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The RMS speed of Cl₂ and He molecules at 411 K is 379.97m/s and 1600 m/s

In a gas, the root-mean-square speed is used to calculate particle speed, which is defined as the square root of the common velocity squared of the molecules in the gas. It is represented mathematically as vrms=3RT/M.

The average kinetic energy of gas molecules is proportional to temperature and inversely proportional to molecular weight.

The root mean square(RMS) speed of the molecule in a gas can be calculated using the following formula

Rms speed = √(3RT/M)

Here R is the gas constant, T is the absolute temperature and M is the molar mass of the gas molecule in kg/mol

Now we have to calculate the RMS speed of Cl₂ molecules at 411 K? and the RMS speed of He atoms at 411 K.

At 411 K, the RMS speed of Cl2 molecules is

RMS speed = √(3RT/M)

=√((3 x 8.314 x 411)/(71 x 10-3 ))

=√(10251.162/0.071)

= √144382.563

= 379.97m/s

RMS speed of He molecules at 411 K

RMS speed = √(3RT/M)

=√((3 x 8.314 x 411)/(4 x 10-3 ))

=√(10251.162/0.004)

= √2562790.5

= 1600 m/s

Therefore the RMS speed of Cl₂ and He molecules at 411 K is 379.97m/s and 1600 m/s

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The mass of the steel bar is 26.7 g.

the specific heat capacity expression is given as :

Q = m c ΔT

Q steel = Q water

where,

specific heat for water = 0.452 J/ g ° C

specific heat capacity for steel = 4.18 J/ g ° C

Q steel = -Q water

m c ΔT =  - m c ΔT

85 × 0.452 × (19.2) = m × 4.18 ×0.8

mass of steel = 26.7 g

Thus, A volume of 85.0 mL of H2O is initially at room temperature (22.00 ∘C ). A chilled steel rod at 2.00 ∘C is placed in the water. If the final temperature of the system is 21.20 ∘C , the mass of the steel bar is 26.7 g.

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Explanation:

Explanation:

Nucleons can be either protons or neutrons contained in an atom, and since Carbon-14, has a mass number of 14, it is evident that it contains 14 nucleons, as the mass number of an element is the sum of the protons and neutrons of an element

Answer:

jar 1 = barium chloride

jar 2 = potassium bromide

jar 3 = calcium iodide

Explanation:

Electronegativity (EN): A measure of an atom's ability to attract electrons (or electron density) toward itself. On the Pauling scale, fluorine is the most electronegative element (EN = 4.0) and cesium and francium are the least electronegative elements (EN = 0.7).

Explanation:

highest principal quantum number of the elements in the period

A periods number on the periodic table corresponds to the number of principal quantum number.

What does principal quantum number signify?

The orbit or shell in which an electron is placed in relation to the atom's nucleus is described by its primary quantum number.

Hence, Each period in the periodic table corresponds to a principal energy level.

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The whole number mole ratio of LiCIO₄ to H₂O in the sample of the compound is 1 : 3.

The mole ratio of the reaction is the ratio in which moles of reactants combine to form moles of product.

The mole ratio of the given reaction is calculated below as follows:

Moles of LiCIO₄ present in the sample of the compound = 0.0449 mole LiCIO₄

Moles of H₂O present in the sample of the compound = 0.135 mol H₂O

To get the whole number mole ratio, we divide each mole of substance present in the sample by the smallest number of moles.

Mole ratio of  LiCIO₄ = 0.0449 mole / 0.0449 mole

Mole ratio of  LiCIO₄ = 1

Mole ratio of  H₂O = 0.135 / 0.0449

Mole ratio of  H₂O = 3

Hence mole ratio of  LiCIO₄ to H₂O in the sample = 1 : 3

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Answer:

1.46878825 g O_3

Explanation:

the balanced equation is:

2 KClO_3 = 2 KCl + 3 O_2

using stoichiometry, you can find the amount of O_2 produced from 2.5 g KClO_3

2.5 g KClO_3 x (1 mol / 122.55 g KClO_3) x (3 mol O_3 / 2 mol KClO_3) x (48 g O_3 / 1 mol O_3) = 1.46878825 g O_3

The Tricarbon Octasulfide:  number of carbons is 3.

The tricarbon octasulfide is C₃S₈. The tricabon octasulfide contains three carbons in the molecular formula. carbon is the element with the chemical symbol C is place in the group 14 and the period second in the periodic table. the atomic number of carbon is six. tri carbon is an inorganic compound with the chemical formula C₃ having three carbon atoms. carbon is used as the fuel in the form of coal , methane . carbon is a non metal and the state of carbon is solid state at room temperature.

Thus, The Tricarbon Octasulfide:  number of carbons is 3.

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