describe a procedure to remove the water from the mixture that passes through the filter and collects in the beaker.

IBM's Watson utilizes a massively parallel, text mining-focused, probabilistic evidence-based computational architecture called DeepQA.

IBM's Watson utilizes a massively parallel, text mining-focused, probabilistic evidence-based computational architecture called DeepQA.

                                    IBM's Watson utilizes a massively parallel, text mining-focused, probabilistic evidence-based computational architecture called DeepQA.

                            IBM's Watson utilizes a massively parallel, text mining-focused, probabilistic evidence-based computational architecture called DeepQA.

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Answer:

The volume will also decrease.

Explanation:

This illustration clearly indicates Boyle's law.

Boyle's law states that the volume of a fixed mass of gas is directly proportional to the absolute temperature, provided the pressure remains constant. Mathematically, it is represented as:

V & T

V = KT

K = V/T

V1/T1 = V2/T2 =... = Vn/Tn

Where:

T1 and T2 are the initial and final temperature respectively, measured in Kelvin.

V1 and V2 are the initial and final volume of the gas respectively.

From the illustration above, the volume is directly proportional to the temperature. This implies that as the temperature increases, the volume will also increase and as the temperature decreases, the volume also will decrease.

Answer:

For CO:

Formal charge of C = 4 - 2 - 6/2 = -1

Formal charge of O = 6 - 2 - 6/2 = +1

2. For CO₂:

Formal charge of C = 4 - 0 - 8/2 = 0

Formal charge of each O = 6 - 4 - 4/2 = 0

3. For CO₃²⁻:

Formal charge of C: 4 - 0 - 8/2 = 0

Formal charge of two O's single-bonded to C = 6 - 6 - 2/2 = -1

Formal charge of the O double-bonded to C = 6 - 4 - 4/2 = 0

Answer:

the called potential energy because the potential energy is the latentenergy in an object at rest

Answer: 1) The answer is: c) protons and neutrons.

2) The answer is: a) electrons.

Explanation:

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. Therefore, Much of the mass of an atom is concentrated in its nucleus. The nucleus contains  protons and neutrons and the outer part of the atom contains  electrons.

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. Electron has -1 charge while proton has +1 charge. Neutron is neutral.

Much of the mass of an atom is concentrated in its nucleus. The nucleus contains  protons and neutrons and the outer part of the atom contains  electrons.

Therefore, much of the mass of an atom is concentrated in its nucleus. The nucleus contains  protons and neutrons and the outer part of the atom contains  electrons.

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If 8.50 mol of ch4 interacts, a total of 1172.74 grams of hydrogen chloride are produced.

Our skin, nose, eyes, tongue, and larynx can all get irritated by hydrogen chloride. Frostbite may lead to exposure to cold hydrogen chloride. Hydrogen chloride exposure may be harmful to workers. The dosage, timeframe, and type of job determine the degree of injury.

Each step = 70% yield

\(CH_{4} + 4Cl_{2}\) → \(CCl_{4} + 4HCl\)

Given mole of \(CH_{4}\) reacted = 8.5 mole

from 1 mole of \(CH_{4}\) = 1 mole of \(CCl_{4}\) formed ( theoretically )

actually = \(\frac{70}{100} * 1\)

             = 0.7 mole of \(CCl_{4}\) formed

Hence,

\(CCl_{4}\) formed = 8.5 * 0.7 mole = 5.95 mole

\(HCl\) formed = 8.5 * 4 * 0.7 mole

                    = 23.8

\(2^{nd}\) step

\(CCl_{4} + 2HF\) → \(CCl_{2}f_{2} +2HCl\)

now  5.95 mole of \(CCl_{4}\) reacted

Hence ; \(HCl\) formed

                                 = 2 * 5.95 * 0.7

                                 = 8.33 mole

Total mole of \(HCl\) formed

                                  = 23.8 + 8.33

                                  = 32.13 mole

mass of \(HCl\) formed

                              =  36.5 * 32.13 g

                              =   1172.74 gram

Therefore the total amount of HCl formed is 1172.74 gram.

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The complete question is:

Each step in the process below has a 70.0% yield.

CH4 + 4Cl2 ---> CCl4 + 4HCL

CCl4 + 2HF ---> CCl2F2 + 2HCl

The CCl4 formed in the first step is used as a reactant in the second step. If 8.50 mol of CH4 reacts, what is the total amount of HCl produced? Assume that Cl2 and HF are present in excess.

Answer:

False, RNA is single stranded, DNA is double stranded and forms a double helix

Explanation:

The true statement is that lambda O max increases as the number of conjugated bonds in a molecule increases. This is due to the “conjugated effect”, which explains why molecules with more conjugated bonds are better absorbers of light.

Conjugated systems absorb ultraviolet (UV) light. The wavelength at which light is absorbed, known as the lambda O max, is dependent on the number of conjugated bonds in a molecule. In general, the more conjugated bonds a molecule has, the higher its lambda O max.

When considering the true statement, it is clear that lambda O max increases as the number of conjugated bonds in a molecule increases. As the number of conjugated bonds increases, the molecule can absorb a higher energy of light, thus increasing the lambda O max. This phenomenon is known as the “conjugated effect”, which explains why molecules with more conjugated bonds are better absorbers of light.

In contrast, the statement that lambda O max increases as the number of conjugated bonds in a molecule decreases is false. As the number of conjugated bonds decreases, the molecule will be unable to absorb higher energy light and thus the lambda O max will decrease.

Finally, the statement that lambda O max is not affected by the number of conjugated bonds in a molecule is false. As discussed above, the lambda O max is directly related to the number of conjugated bonds in a molecule. A higher number of conjugated bonds results in a higher lambda O max, while a lower number of conjugated bonds results in a lower lambda O max.

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The expect condensation of droplets followed by freezing to occur at this temperature as well. Ice particles can form on the surfaces of Kaolinite of reaction function.

To find the total reaction to drug, we need to integrate the rate of reaction function over the given time interval. The rate of reaction is given by R'(t) = 3/2. To find the total reaction, we need to integrate the rate of reaction function over the given time interval. However, the time interval is not provided in the question. Please provide the time interval so that we can proceed with the calculations. the equilibrium vapor pressure with respect to water (eow) is greater than the equilibrium vapor pressure with respect to ice (coi). The expect condensation of droplets followed by freezing to occur at this temperature as well. Ice particles can form on the surfaces of Kaolinite particles as the air is supersaturated with respect to ice.

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If it is in group 1 or group 7 (or any group higher than 7), the element is a metal or is a non-metal, then the compound is ionic.

Ionic chemistry is the study of how atoms and molecules interact with each other through the transfer of electrons. It involves the transfer of ions, which are atoms or molecules that have gained or lost an electron. These ions interact with each other to form ionic compounds, which are composed of ionic bonds. These bonds are formed by the attraction between the positive and negative charges of the ions.

This is because ions form when atoms of a metal lose electrons to a non-metal in order to achieve a full outer shell of electrons. Group 1 elements tend to lose one electron, while group 7 elements tend to gain seven electrons.

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The mass of hydrogen that is needed to produce 5.0 g of tungsten is 0.0273 grams.

Tungsten is a chemical element that is used with steel to make the steel strong.

The equation:

WO₃ + 3H₂ --> 3H₂O + W

Given, that the mass is 5.0 g of tungsten

The molar mass of tungsten is 183.84 g/mol

Moles = mass / molar mass

5.0 / 183.84 = 0.0271 moles

Then, the Mass of hydrogen

The molar mass of hydrogen is 1.00784

Moles of tungsten are 0.0271 moles

molar mass x moles

1.00784 x 0.0271 moles

0.0273

Thus, the mass of hydrogen needed is 0.0273 grams.

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The model showing the various layers of Iron atoms included in the existing model is attached accordingly.

Several atoms have a positively charged nucleus made up of protons and neutrons that is surrounded by a cloud of negatively charged electrons.

An atom is a fundamental particle of matter that includes at least one proton.

Iron, with the chemical symbol Fe (from the Latin word "Ferrum") and atomic number 26, is the most abundant element on Earth.

A neutral iron atom has 26 protons, 30 neutrons, and 26 electrons in four distinct shells surrounding the nucleus.

Iron is a ductile, gray, relatively soft metal that conducts heat and electricity pretty well.

Magnets attract Iron and Iron is easily magnetized.

The pure metal is very reactive chemically and rusts easily in damp air, generating red-brown oxides.

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Answer: 6.2 seconds

Explanation:

When a ground state hydrogen atom absorbs a photon of light having a wavelength of 92.6 nm, the final state of the hydrogen atom is the excited state.

The hydrogen atom has only one electron, which is located in the ground state or the first energy level. When a photon of light of 92.6 nm wavelength is absorbed, the electron gains energy and jumps to the higher energy level, which is the second energy level (n = 2).

Thus, the final state of the hydrogen atom is the excited state or the second energy level. The energy absorbed by the electron is equal to the energy of the photon. The energy of a photon is given by the formula: Energy of a photon = hc/λwhere,h = Planck's constant = 6.626 x 10⁻³⁴ J.s

c = speed of light = 3 x 10⁸ m/s λ = wavelength of the photon

Substituting the given values, we get

Energy of a photon = (6.626 x 10⁻³⁴ J.s x 3 x 10⁸ m/s) / (92.6 x 10⁻⁹ m)

Energy of a photon = 2.14 x 10⁻¹⁸ J. The energy absorbed by the electron is equal to the energy difference between the two energy levels.

The energy of an electron in the nth energy level of the hydrogen atom is given by the formula: E_n = (-2.18 x 10⁻¹⁸ J) / n² where, E_n = energy of electron in nth energy level

Substituting n = 1 (ground state), we get: E₁ = (-2.18 x 10⁻¹⁸ J) / (1)²   E₁= -2.18 x 10⁻¹⁸ J

Substituting n = 2 (excited state), we get: E₂ = (-2.18 x 10⁻¹⁸ J) / (2)²  E₂ = -0.545 x 10⁻¹⁸ J

The energy absorbed by the electron is the difference between the energy of the electron in the excited state and the energy of the electron in the ground state.

ΔE = E₂ - E₁

ΔE = (-0.545 x 10⁻¹⁸ J) - (-2.18 x 10⁻¹⁸ J)ΔE = 1.64 x 10⁻¹⁸ J

Since the electron gains energy, the energy absorbed by the electron is positive. Therefore, the final state of the hydrogen atom is the excited state.

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Answer:

respiración

Explanation:

The element in group 2 4th period is Calcium and it's Electronic configuration is - \(1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6} 4s^{2}\).

How to find the noble gas configuration?

Sharing valence electrons is all that is necessary to create a noble gas electron configuration. The atom will most likely give away its remaining electrons and turn into an electrically charged ion if it receives less than four. It will share the electrons and reach noble gas configuration if it gets more than 4.

Step 1 -For finding block:

​:- See the block in which the last electron enters. The element will belong to that block.

For finding period:

:- Highest value of the principal quantum no. will denotes the period no.

Afbau Principle:

​:- 1s 2s 2p 3s 3p 4s 3d 4p 5s 4d 5p 6s 4f 5d 6p 7s 5f 6d 7p 8s

Step 2 -Since element is in group, therefore last electron will enter into s-block and since it is in 4th period, therefore highest value of principal quantum number is 4

Element is Calcium

Electronic configuration - \(1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6} 4s^{2}\)

Therefore the element is calcium.

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Answer:

False, the empirical formula denotes the smallest whole-number ratio of atoms in a compound

Explanation:

a molecular formula is the total number of atoms in the compound

Answer:

1. single replacement

Explanation:

Single replacement can be represented by AB+C ⇄B+AC, which matches the picture

Double replacement and double displacement are the same kind of reaction and can be represented by AB+CD ⇄BD+AC

Decomposition reaction can be represented by AB ⇄A+B

The mass of iron formed when 591 kJ of heat is released is approximately 78 g.

To solve this problem, we need to use the concept of stoichiometry and the given enthalpy change.

First, we need to write a balanced chemical equation for the reaction:

2 Al (s) + Fe2O3 (s) → 2 Fe (s) + Al2O3 (s)

According to the stoichiometry of the reaction, 2 moles of Fe are produced for every 1 mole of Fe2O3 reacted.

Next, we can use the given enthalpy change to calculate the amount of heat released when 1 mole of Fe2O3 reacts.

ΔH = -850 kJ/mol Fe2O3

If 850 kJ of heat are released when 1 mole of Fe2O3 reacts, then 591 kJ of heat would be released when:

591 kJ x 1 mol Fe2O3 / -850 kJ = -0.696 mol Fe2O3

Since the reaction produces 2 moles of Fe for every 1 mole of Fe2O3 reacted, the amount of Fe produced would be:

2 mol Fe x 0.696 mol Fe2O3 = 1.392 mol Fe

Finally, we can calculate the mass of Fe produced using its molar mass:

1.392 mol Fe x 55.85 g/mol Fe = 77.9 g

So, the correct answer is 78 g.

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Answer: The branch of science you are referring to is Physical Science.

Answer:

physical science

Explanation:

Physical science is a branch of natural science that studies non-living systems, in contrast to life science.

The percent mass of MgCl₂ in the mixture is 47.54%; option A.

The moles of chloride ion present in the original solid sample containing MgCl₂ is determined as follows:

Mass of AgCl precipitate = 1.032 g

Moles of AgCl = mass / molar mass

The molar mass of AgCl = 143.5 g/mol

Moles of AgCl = 1.032 / 143.5

Moles of AgCl = 0.00719 moles

Moles of Cl⁻ ions = 0.00719 moles

Moles of Cl⁻ ions in 1 mole MgCl₂ = 2 moles

Hence moles of MgCl in the solid sample = 0.00719 / 2 = 0.003595 moles

Mass of MgCl₂ in the sample = moles * molar mass

Molar mass of MgCl₂ = 95 g/mol

Mass of MgCl₂ = 0.003595 * 95

Mass of MgCl₂ = 0.3415 g

Percent mass of MgCl₂ in the sample = (0.3415 / 0.7209) * 100 %

Percent mass of MgCl₂ in the sample = 47.4%

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Answer:

The objects should be far apart. There must be air circulation. The objects need to be touching. Solar energy is required.

Explanation:

Answer: Volume of H2 gas is 30.576 Litres

Explanation:

The reaction between HCl and Zn is as follows:

Moles of HCl = 100/36.5 = 2.73 moles

Moles of Zn = 100/65 = 1.53 moles

As per Reaction and available reagents , HCl is the limiting reagent.

So, we can say that :

2 moles HCl gives 22.4 L of H2 gas.

=> 2.73 moles of HCl gives

So, final answer is:

Volume of H2 gas is 30.576 Litres.

The number of ounces of the 17% copper alloy needed is approximately 66 ounces (D).

To solve this problem, we'll set up a system of equations to represent the given information.

Let x be the number of ounces of the 17% copper alloy.

Let y be the number of ounces of the 25% copper alloy.

We know that the total weight of the two alloys combined is 138 ounces, so we have the equation:

x + y = 138 (Equation 1)

We also know that the desired alloy should have a copper content of 21.174%, so we have the equation:

(0.17x + 0.25y) / 138 = 0.21174 (Equation 2)

To solve this system of equations, we can use the substitution method.

From Equation 1, we can solve for x:

x = 138 - y

Substituting this value of x into Equation 2, we have:

(0.17(138 - y) + 0.25y) / 138 = 0.21174

Simplifying the equation:

23.46 - 0.17y + 0.25y = 29.21212

Combining like terms:

0.08y = 5.75212

Dividing both sides by 0.08:

y = 71.9

Rounding to the nearest whole number, y ≈ 72 ounces.

Substituting this value of y back into Equation 1, we can solve for x:

x = 138 - y

x = 138 - 72

x = 66

Therefore, the number of ounces of the 17% copper alloy needed is approximately 66 ounces (D).

To form 138 ounces of an alloy that is 21.174% copper, Arne and Nancy need to mix approximately 66 ounces of an alloy that is 17% copper with approximately 72 ounces of an alloy that is 25% copper.

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Answer:

2.04 g/cm3

Explanation:

Density = mass ÷ volume

= 5100 ÷ 2500

=2.04 g/cm3