Using the new ordering system, can we change the Lead and Silver rule to simply:
"Lead and silver salts are generally insoluble?" Why or why not?

Answer:

No matter where that object is in the vast universe, it will have the same mass. Weight, on the other hand, is a measure of how much gravitational force is exerted on an object.

The sulfuric acid solution has a 0.175 M concentration.

The equation for the reaction between sulfuric acid and sodium hydroxide is as follows:

H2SO4 + 2NaOH → 2H2O + Na2SO4

To solve for the concentration of the sulfuric acid solution, we must first calculate the moles of sodium hydroxide needed to titrate the sulfuric acid solution. The molarity of the sodium hydroxide is given as 0.605 M, and the volume of sodium hydroxide used is given as 30.44 mL. Therefore, the number of moles of sodium hydroxide can be calculated as follows:

\(n(NaOH) = M(NaOH) * V(NaOH)\\n(NaOH) = 0.605 M * 0.03044 L\\n(NaOH) = 0.01844 mol\)

Now that we know the number of moles of sodium hydroxide required to titrate the sulfuric acid solution, we can calculate the number of moles of sulfuric acid present. Since the equation given is a 1:2 mole ratio, we can use the following equation:

\(n(H2SO4) = 2 * n(NaOH)\\n(H2SO4) = 2 * 0.01844 mol\\n(H2SO4) = 0.03688 mol\)

Now that we know the number of moles of sulfuric acid present, we can calculate the concentration of the sulfuric acid solution. The volume of the sulfuric acid solution is given as 210.3 mL. The molarity of the sulfuric acid solution can be calculated as follows:

\(M(H2SO4) =\frac{ n(H2SO4) }{ V(H2SO4)}\\\)

\(M(H2SO4) = \frac{0.03688 mol }{0.2103 L}\\M(H2SO4) = 0.175 M\)

Therefore, the concentration of the sulfuric acid solution is 0.175 M.

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An airplane flew 3043 km from Houston to Seattle in 5.5 hours. What was the average speed, in m/s rounded to the nearest hundredth, of the airplane from Houston to Seattle?

The answer is 553

Answer:

553

Explanation:i did this question today and it was right!

The strict regulations established by USP Chapter <797> regarding hood-cleaning procedures indicate the critical importance of hood cleaning to patient health and safety.

The purpose of these guidelines is to ensure that compounding pharmacies maintain a clean and sterile environment when preparing medications, especially those that will be administered to patients. The guidelines specify the frequency of cleaning and the level of detail required to ensure that the hoods are free of contaminants, which could compromise the quality and efficacy of the compounded products.

Therefore, Failure to comply with these regulations could result in contamination of medications and subsequent harm to patients. Thus, it is crucial to adhere to these guidelines to maintain a safe and sterile environment for compounding medications.

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Answer:

Filter it

Explanation:

The properties of a natural resource that make it useful for humans as a material or energy source is the ability to convert mass into energy and vice versa.

The expression natural resources make reference to all types of matter and energy extracted from nature that can be used to produce goods and services.

Some examples of natural resources include for example irreversible resources such as fossil fuels (i.e., oil, or coal, gas, minerals such as metals, rocks, etc) as well as those based on the use of reversible energy such as eolic air energy, solar radiation or sunlight, soil and hydric resources or water.

Therefore, with this data, we can see that natural resources can be defined as any material and or energy obtained from nature that may be irreversible or reversibly used to produce goods and services.

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Answer:

Ethyl ethers are Non-polar solvent and can extract polar molecules such as fatty acids

The mass of Aluminum Sulfate is 5.373 grams if you have \(2.837*10^{26\) atoms of Sulfur .

The molecular formula of Aluminum Sulfate is \(Al_2(SO_4)_3.\) In one molecule of aluminum sulfate, there are 3 sulfur atoms. To calculate the mass of aluminum sulfate, follow the steps below:

Step 1: Calculate the molar mass of aluminum sulfate using the periodic table.Al = 27.0 g/molS = 32.1 g/molO = 16.0 g/mol

(2 × Al) + (3 × S) + (12 × O) = molar mass of \(Al_2(SO_4)_3.\) = 342.2 g/mol

Step 2: Find the number of moles of sulfur in the given number of atoms of sulfur.2\(2.837*10^{26\) atoms of sulfur × 1 mol S/\(6.022 * 10^{23\)atoms S = 0.0470 mol S

Step 3: Use the molar ratio of sulfur to aluminum sulfate to calculate the number of moles of aluminum sulfate.1 mol \(Al_2(SO_4)_3.\) / 3 mol S = 0.333 mol\(Al_2(SO_4)_3.\) per mol S0.0470 mol S × 0.333 mol \(Al_2(SO_4)_3.\)/mol S = 0.0157 mol \(Al_2(SO_4)_3.\)

Step 4: Calculate the mass of aluminum sulfate.0.0157 mol \(Al_2(SO_4)_3.\) × 342.2 g/mol\(Al_2(SO_4)_3.\)= 5.373 g\(Al_2(SO_4)_3.\)

Therefore, the mass of Aluminum Sulfate is 5.373 grams if you have \(2.837*10^{26\) atoms of Sulfur.

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The particles that electromagnetic radiation consists of are called photons. These photons exhibit both wave and particle behavior. The greater the momentum of a photon, the shorter its wavelength.

Electromagnetic radiation is the emission of energy in the form of electromagnetic waves or photons from electrically charged particles. Electromagnetic radiation is classified according to its frequency or wavelength. The electromagnetic spectrum is a graphical representation of all the types of electromagnetic radiation, from gamma rays to radio waves.Photons have wave-particle duality, which means they behave like both particles and waves. This implies that they may have a certain amount of momentum as particles and can also exhibit diffraction as waves.The wavelength of a photon is inversely proportional to its momentum, and the greater the momentum of a photon, the shorter its wavelength. Photons, like all other particles, have momentum as a result of their mass and velocity. The energy and frequency of a photon are proportional to each other, with the frequency being inversely proportional to the wavelength.

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Answer:

159.69 g/mol

Explanation:

Here's the answer hope it helps

Answer:

A combustion reaction is a reaction in which a substance reacts with oxygen gas, releasing energy in the form of light and heat.

Acid-Base Extraction is a separation technique that is used to separate organic compounds based on their acid-base properties. In this experiment, the goal is to separate a mixture of a base and a neutral compound using acid-base extraction.

The first step in this experiment is to dissolve the mixture of 9-fluorenone and benzoic acid in a solvent. This is done by adding 75 mg of the mixture to a centrifuge tube or a separatory funnel along with an appropriate solvent. The solvent should be chosen based on its ability to dissolve the mixture and its immiscibility with water.

Next, an aqueous solution of a strong acid or base is added to the mixture. This will react with the base or acid in the mixture, respectively, forming a salt that is soluble in water. The aqueous layer can then be separated from the organic layer using the centrifuge tube or separatory funnel.

The final step is to recover the separated compounds.

The aqueous layer can be evaporated to recover the salt, which can then be converted back to the original base or acid using an acid or base, respectively. The organic layer can be evaporated to recover the neutral compound.

Overall, acid-base extraction is a useful technique for separating organic compounds based on their acid-base properties. It is important to carefully choose the solvent and acid or base used in the experiment to ensure efficient separation of the compounds.

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0.0025 moles correspond to 1.56 × 10²¹ atoms of sodium.

The mole is an amount unit similar to familiar units like pair, dozen, gross, etc. It provides a specific measure of the number of atoms or molecules in a bulk sample of matter.

A mole is defined as the amount of substance containing the same number of atoms, molecules, ions, etc. as the number of atoms in a sample of pure 12C weighing exactly 12 g.

Given,

Atoms of sodium = 1.56 × 10²¹ atoms

we know that,

1 mole = 6.023 × 10²³ atoms

Number of moles of sodium = number of atoms ÷ 6.023 × 10²³

                                               = 1.56 × 10²¹ atoms ÷ 6.023 × 10²³

                                                = 0.0025 moles of sodium

Therefore,  0.0025 moles correspond to 1.56 × 10²¹ atoms of sodium.

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Answer:

The frequency is the answer for your question in the comments

Explanation: For this Question..

B) is the answer in terms of an economic factor that contributes to the stability of a society.

Among the options, option B low tax and interest rates is an economic factor that contributes to the stability of a society.

Tax is a mandatory financial charges imposed on a working person or an owner of a service or property by a governmental organization  for the fund for public expenditure.

The only feasible way to get money to pay for government expenditure on the products and services that the majority of us need is through taxes. But, establishing an effective and fair tax system is far from easy, especially for developing nations that seek to integrate into the global economy.

When trying to set up effective tax systems, developing nations encounter enormous obstacles. First off, most people in these nations work in agriculture or small, unofficial businesses. Their incomes fluctuate since they are rarely paid a regular, fixed wage, and many of them are compensated in cash "off the books."

Therefore, tax which is moderate to be payable by people in all sectors and lo interest rate contribute to the stability of society.

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Answer:

hey friend

how can I help you

Charge density is defined as the ratio of charge of an atom to its volume. Note that the smaller the radius of an atom, the smaller the volume.

According to the formula for the charge density, the smaller the volume of the element, the higher its charge density (The volume being at the denominator).

Hence we can conclude that the high density of Magnessium is related to its atomic radius and shows that the element has small atomic radius.

The chemical reaction has been the low energy reaction containing electrons rearrangement, while nuclear reactions have been the higher energy reactions with change in nuclei.

The term nuclear reactions is defined as when there has been the including the change in the nuclei of the atom. However, the reaction has been known as the chemical reaction when the change has been processed in the electrons with the rearrangement.

The nuclear reactions have made up of a more amount of energy to be liberated, while the amount of energy included in the chemical reaction has been smaller.

Thus, the chemical reaction has been the low energy reaction including electrons rearrangement, while nuclear reactions have been the high energy reactions with change in nuclei.

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Answer:

Although there are many specific types of energy, the two major forms are Kinetic Energy and Potential Energy. Kinetic energy is the energy in moving objects or mass. Examples include mechanical energy, electrical energy etc.

Explanation:

Examples of these are: light energy, heat energy, mechanical energy, gravitational energy, electrical energy, sound energy, chemical energy, nuclear or atomic energy and so on. Each form can be converted or changed into the other forms. ... Kinetic energy is the energy in moving objects or mass.

A sample of the male sex hormone testosterone C₁₉H₂₈O₂, contains 3.58 × 10²¹ atoms of hydrogen. It contain 2.42 × 10²¹ carbon atoms.

To find the number of moles use this formula

Number of moles = Number of atoms / Avogadro's Number

Here,

Number of atoms = 3.58 × 10²¹

Avogadro's Number = 6.022 × 10²³

Now, put the values in above formula we get

Number of moles = Number of atoms / Avogadro's Number

                             =  3.58 × 10²¹ / 6.022 × 10²³

                             = 5.94 × 10⁻³

1 mol testosterone C₁₉H₂₈O₂ contains 28 mole of hydrogen atoms

Now, 5.94 × 10⁻³ moles contains = (1/28) × 5.94 × 10⁻³

                                                      = 2.12 × 10⁻⁴ mol

To find the number of atoms use this formula

Number of atoms = Number of moles × Avogadro's Number

Here,

1 mol testosterone C₁₉H₂₈O₂ contains 19 mole of carbon atoms

Number of moles = 19 moles

Avogadro's Number = 6.022 × 10²³

Now put the value in above formula we get

Number of atoms = Number of moles × Avogadro's Number

                              = 19 ×  6.022 × 10²³

                              = 1.14 × 10²⁵

Now the no. of C-atoms =  1.14 × 10²⁵ × 2.12 × 10⁻⁴ mol

                                        = 2.42 × 10²¹ carbon atoms.

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Note: The given question is incomplete on the portal here is the complete question.

Question: A sample of the male sex hormone testosterone C₁₉H₂₈O₂, contains 3.58 × 10²¹ atoms of hydrogen. How many carbon atoms does it contain ?

The proper numbering is 4, 2, 1, and 3.

The following sequence of actions can be used to describe how an undersea sedimentary rock is formed.

Sedimentary Rock

In a basin, sediments and animal skeletons start to accumulate.

The material that has been deposited starts to become bound together by a glue ingredient brought in by running water, such as calcite or clay. The deposits start to become harder.

The deposits eventually transform into rock that is solid and hard. The new rock is a mixture of several organic and inorganic components.

Existing rocks become sediments as a result of weathering.

What causes sedimentary rocks to form?

Sedimentary rocks are formed when previously existing rocks or pieces of extinct animals accumulate on the surface of the Earth. Sediment that has been buried deeply becomes compacted

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Answer:

the pressure is to tight needs to be looser 13.2L of 2.36 and 2.13L

A solution containing alcohol and water. If the mole fraction of water is 0.600, 0.4 is the mole fraction of alcohol.

A mole fraction is a measurement of concentration that is equal to the product of the moles of a component and the total moles of the solution.

Mole fraction is indeed a unitless phrase since it represents a ratio. When all the parts of a solution's mole fraction are summed up, they equal one.

moles fraction of water + mole fraction of alcohol =1

0.600+ mole fraction of alcohol =1

mole fraction of alcohol= 1-0.600

                                       =0.4

Therefore, 0.4 is the mole fraction of alcohol.

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increasing the reaction volume (Will maximize C2H4Cl2 or Will not maximize C2H4Cl2.)

Exothermic is the process.
As the reaction advances, the number of molecules decreases. High pressure and low temperature are advantageous circumstances.
As decreasing pressure shifts the equilibrium in the opposite way, rising volume will not maximise C2H4Cl2.
B. By keeping the product content at a minimal and removing the reaction mixture as it develops, C2H4Cl2 will be maximized, pushing the equilibrium forward.
c. Because the process is exothermic and extra heat must be eliminated, slowing it down will increase the amount of C2H4Cl2.
d. Increasing only one component won't cause the balance to advance, so adding Cl2 won't enhance C2H4Cl2.
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Approximately 4.37 x 10^23 molecules of HCl would be required to form 34.52 g of MgCl₂.

To determine the number of molecules of HCl required to form 34.52 g of MgCl₂, we need to use the molar mass and stoichiometry of the balanced equation:

Mg(OH)₂(s) + 2 HCl(aq) → 2 H₂O(l) + MgCl₂(aq)

The molar mass of MgCl₂ is 95.21 g/mol.

First, we need to calculate the number of moles of MgCl₂ formed:

Moles of MgCl₂ = mass of MgCl₂ / molar mass of MgCl₂

Moles of MgCl₂ = 34.52 g / 95.21 g/mol

Moles of MgCl₂ = 0.363 mol

According to the balanced equation, the stoichiometric ratio between HCl and MgCl₂ is 2:1. Therefore, the moles of HCl required can be calculated as follows:

Moles of HCl = 2 * Moles of MgCl₂

Moles of HCl = 2 * 0.363 mol

Moles of HCl = 0.726 mol

To calculate the number of molecules, we need to use Avogadro's number, which is approximately 6.022 x 10^23 molecules/mol.

Number of molecules of HCl = Moles of HCl * Avogadro's number

Number of molecules of HCl = 0.726 mol * 6.022 x 10^23 molecules/mol

Number of molecules of HCl = 4.37 x 10^23 molecules

Therefore, approximately 4.37 x 10^23 molecules of HCl would be required to form 34.52 g of MgCl₂.

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Answer:

C3H8 + 5O2 = 3Co2 + 4 H2o

Explanation:

we can balance this equation by algebric method ( ABC method)

The percentage error of the measurement, given that the accepted measurement is 7.44 g/cm³, is 1.88%

First, we shall determine the absolut error. This can be obtained as follow:

Absolute error = accepted value - measured value

Absolute error = 7.44 - 7.30

Absolute error = 0.14 g/cm³

Haven obtained the absolute error, we shall determine the percentage error. Details below:

Percentage error = (Absolute error / accepted value) × 100

Percentage error = (0.14 / 7.44) × 100

Percentage error = 1.88%

Thus, we can conclude that the percentage error is 1.88%

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Answer:

Before we can sketch the Lewis structures of molecules, we must first understand the octet rule. The octet rule asserts that when atoms combine to create compounds, electrons are gained, lost, or shared among them, resulting in a stable electron configuration defined by eight valence electrons as a result. These rules are used in conjunction with the main-group components of the second period.

Explanation:

Hope it helps:)

Answer: d

Explanation:because it makes sence i think