a possible set of quantum numbers for the last electron added to complete an atom of germanium in its ground state is

Answer:

The mass of silver chloride produced = 2.202 g

Explanation:

Equation of the reaction is given below

3AgNO₃(aq) + FeCl₃(aq) ----> 3AgCl(s) + Fe(NO₃)₃(aq)

molar mass of AgNO₃ = 170 g/mol

molar mass of FeCl₃ = 233.5 g/mol

molar mass of AgCl = 143.5 g/mol

3 moles of silver nitrate reacts with 1 mole of iron (iii) chloride to give 3 moles of silver nitrate

4.15 grams of AgNO₃ = 4.15/170 = 0.0244 moles of AgNO₃

1.11 grams of FeCl₃ = 1.11/233.5 = 0.0047 moles of FeCl₃

mole ratio of AgNO₃ to FeCl₃ = 0.0244/0.0047 = 5 : 1

therefore, FeCl₃ is the limiting reactant

0.0047 moles of FeCl₃ reacting will produce 0.0047 *  3 moles of AgCl = 0.0141 moles of AgCl

0.0141 moles of AgCl = 0.0141 * 143.5 g of AgCl = 2.02 g of AgCl =

Therefore mass of silver chloride produced = 2.202 g

The molecular formula of an antibacterial drug is C17H18FN3O3. We are to determine how many fluorine atoms are in a 150-mg tablet of this drug. To get started, we need to calculate the molar mass of the compound: Molecular mass of C17H18FN3O3 = 329.35 g/mol. Dividing the mass of the drug by its molar mass and multiply by Avogadro's number will give us the number of moles of the drug present in a 150-mg tablet: No. of moles = (150 mg) / (329.35 g/mol) = 0.4554 x 10^-3 mol.

The molecular formula of the drug tells us that for every molecule of the drug, there is one fluorine atom. Therefore, the number of fluorine atoms in the tablet is equal to the number of molecules of the drug present in the tablet. We can calculate the number of molecules present in the tablet as follows: Number of molecules = (0.4554 x 10^-3 mol) x (6.022 x 10^23 molecules/mol)= 2.743 x 10^20 molecules. Therefore, the 150-mg tablet of the drug contains 2.743 x 10^20 fluorine atoms.

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Since Q is less than K, the reaction will proceed towards products to reach equilibrium. So, the correct option is the reaction is not at equilibrium and it will proceed toward the products.

When the rates of forward and reverse reactions are equal, equilibrium is the condition where there is no overall change in the concentrations of reactants and products. When a system is in equilibrium, the concentrations of all reactants and products are constant over time, and the system appears to be in a state of rest. An equilibrium constant \((K_e_q)\), which represents the ratio of the concentrations of products to reactants at equilibrium for a reaction, can be used to characterize the state of equilibrium.

Therefore, the correct option is B.

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Answer:

Divide mass by volume. you get 3

Explanation:

The element that is most easily oxidized among Sn, Cu, and Mg is Sn. So, the correct answer is (B) Sn.

Based on the activity series given, we can determine the element that is most easily oxidized among Sn (tin), Cu (copper), and Mg (magnesium).

The activity series lists the elements in order of their reactivity, with the most reactive element at the top and the least reactive at the bottom. The element that is most easily oxidized is the one that readily loses electrons and forms positive ions.

Looking at the activity series, we can see that Sn appears above Cu and Mg. This indicates that Sn is more easily oxidized than Cu and Mg. In other words, Sn has a higher tendency to lose electrons and form Sn2+ ions compared to Cu and Mg.

On the other hand, Cu appears below Sn and above Mg, which means it is less easily oxidized than Sn but more easily oxidized than Mg. Similarly, Mg appears at the bottom of the activity series, indicating that it is the least easily oxidized among the three elements.

Therefore, the element that is most easily oxidized among Sn, Cu, and Mg is Sn. So, the correct answer is (B) Sn.

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Answer:

The empirical formula is Ag2O.

The empirical formula is Ag2O.Explanation:

The empirical formula is Ag2O.Explanation:The empirical formula is the simplest whole-number ratio of atoms in a compound.

The empirical formula is Ag2O.Explanation:The empirical formula is the simplest whole-number ratio of atoms in a compound.The ratio of atoms is the same as the ratio of moles. So our job is to calculate the molar ratio of Ag to 2O.

do the steps ...

To get this into an integer ratio, we divide both numbers by the smaller value.

From this point on, I like to summarize the calculations in a table.

ElementAgMass/gXMolesXllRatiomllIntegers

—————————————————−———mAgXXXm7.96Xm0.07377Xll2.00mmm2

mlOXXXXl0.59mm0.0369Xml1mmmml1

There are 2 mol of Ag for 1 mol of O.

Answer:

Hello There!!

Explanation:

The answer is↬The empirical formula is Ag2O. It is the simplest whole-number ratio of atoms in a compound.

hope this helps,have a great day!!

~Pinky~

When stating the scientific name of an organism Generic name, Specific epithet are 2 levels of classifcatipn are included.

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Answer:

D) 1:2

Explanation:

(a) The natural sources of alkanoates includes fats and oils.

Alkanoates are organic compounds which are formed from the reaction which occurs between an alkanoic acid and alkanol.

So therefore, we can now confirm that one of the sources of esters are fatty oils.

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The molarity of NaOH is 0.8 M.

Molar concentration, also known as molarity, is defined as the number of moles of solute present in a given number of liters of solution, or moles per liter of solution.

The balanced equation for the reaction is;

\(2NaOH(aq) + H_{2} SO_{4} (aq) --------- > NaSO_{4} (aq) +2 H_{2} O (l)\)

Moles = concentration x volume  

thus;

0.220M x 0.0155L= 0.01 moles of \(H_{2} SO_{4}\).

Using the mole ratio;

Moles of NaOH = Moles of \(H_{2} SO_{4}\).×2

                        = 0.02 Moles

Therefore; moles of NaOH = 0.02 moles

But; Concentration = moles / volume  

Thus; Concentration of NaOH = 0.02 / 0.025L

                                                  = 0.8M

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Answer: The amount of heat absorbed is 141.004 kJ.

Explanation:

In order to calculate the amount of heat released while converting given amount of steam (gaseous state) to ice (solid state), few processes are involved:

(1): \(H_2O (s) (-25^oC, 248K) \rightleftharpoons H_2O(s) (0^oC,273K)\)

(2): \(H_2O (s) (0^oC, 273K) \rightleftharpoons H_2O(l) (0^oC,273K)\)  

(3): \(H_2O (l) (0^oC, 273K) \rightleftharpoons H_2O(l) (100^oC,373K)\)

(4): \(H_2O (l) (100^oC, 373K) \rightleftharpoons H_2O(g) (100^oC,373K)\)

Calculating the heat absorbed for the process having the same temperature:

\(q=m\times \Delta H_{(f , v)}\)       ......(i)

where,

q is the amount of heat absorbed, m is the mass of sample and \(\Delta H_{(f , v)}\) is the enthalpy of fusion or vaporization

Calculating the heat released for the process having different temperature:

\(q=m\times C_{s,l}\times (T_2-T_1)\)      ......(ii)

where,

\(C_{s,l}\) = specific heat of solid or liquid

\(T_2\text{ and }T_1\) are final and initial temperatures respectively

We are given:

\(m=46g\\C=2.108J/g^oC\\T_2=0^oC\\T_1=-25^oC\)

Putting values in equation (i), we get:

\(q_1=46g\times 2.108J/g^oC\times (0-(-25))\\\\q_1=2424.2J\)

We are given:

\(m=46g\\\Delta H_{fusion}=334J/g\)

Putting values in equation (i), we get:

\(q_2=46g\times 334J/g\\\\q_2=15364J\)

We are given:

\(m=46g\\C=4.186J/g^oC\\T_2=100^oC\\T_1=0^oC\)

Putting values in equation (i), we get:

\(q_3=46g\times 4.186J/g^oC\times (100-0)\\\\q_3=19255.6J\)

We are given:

\(m=46g\\\Delta H_{vap}=2260J/g\)

Putting values in equation (i), we get:

\(q_4=46g\times 2260J/g\\\\q_4=103960J\)

Calculating the total amount of heat released:

\(Q=q_1+q_2+q_3+q_4\)

\(Q=[(2424.2)+(15364)+(19255.6)+(103960)]\)

\(Q=141003.8J=141.004kJ\)                  (Conversion factor: 1 kJ = 1000J)

Hence, the amount of heat absorbed is 141.004 kJ.

Option (d), P=ATC=MR=MC, accurately represents the long-run equilibrium condition for perfect competition, reflecting the balance between price and cost for firms operating in a competitive market.

The long-run equilibrium condition for perfect competition is that price (P) is equal to average total cost (ATC), which is also equal to marginal cost (MC), and marginal revenue (MR).

Option (d), P=ATC=MR=MC, best represents the long-run equilibrium condition for perfect competition. In perfect competition, firms operate at the minimum point of their average total cost curve, where price equals both average total cost and marginal cost. This condition ensures that firms are earning zero economic profit and are producing at an efficient level.

In the long run, if firms are earning economic profit, new firms will enter the market, increasing competition and driving prices down. Conversely, if firms are experiencing losses, some firms may exit the market, reducing competition and causing prices to rise. This process continues until firms reach a state where price equals average total cost, marginal cost, and marginal revenue, ensuring a long-run equilibrium.

Therefore, option (d), P=ATC=MR=MC, accurately represents the long-run equilibrium condition for perfect competition, reflecting the balance between price and cost for firms operating in a competitive market.

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Answer:

when it comes to adding or subtracting numbers, his final answer should have the same number of decimal places as the least precise value.

For example if you add 2 numbers; 10.443 + 3.5 , 10.443 has 3 decimal places and 3.5 has only one decimal place.

Therefore 3.5 is the less precise value.

So when adding these 2 values the final answer should have only one decimal place.

after adding we get 13.943 but it can have upto one decimal place. then the second decimal place is less than 5 so the answer should be rounded off to 13.9.

the answer is the same number of decimal places as the least precise value

Explanation:

I think this is the answer I'm not sure

Answer: the same number of decimal places as the least precise value

Explanation:

During the formation of the ionic compound magnesium sulfide, a magnesium atom donates two electrons to a sulfur atom to make a magnesium ion and a sulfide ion that are then attracted to each other by electrostatic forces.

An ionic bond between two oppositely charged ions that are created as a consequence of the complete transfer of one or more electrons exhibits the electrostatic force of attraction.

An example of an ionic compound is magnesium sulfide formed when a magnesium atom donates two electrons to a sulfur atom to form cations and anions held together by electrostatic forces of attraction.

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Salt and water level is balanced in our body by the proper regulation through hormonal actions. The level of sodium is controlled and the water if needed is reabsorbed from urine. And if the salt concentration is higher it  is removed through urine.

In addition to actively holding or releasing water in urine, the body manages its salt and water balance by excreting extra sodium in urine. This method has the benefit of reducing the need on external water sources for the long-term preservation of bodily fluids.

Researchers discovered that the kidney regulates levels of sodium, potassium, and the waste product urea to save or release water. This may be the link between salt consumption and glucocorticoid levels.

A high-salt meal raised glucocorticoid levels, which increased the amount of energy utilized by the liver and muscle to generate urea, which the kidney then used to conserve water.

The maintenance of the body fluids' normal concentration, or the sum of all dissolved chemicals  that would exert osmotic pressure against a barrier impervious to them, is known as osmotic control.

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Answer:

minerals can be extracted from recycled electronics

Explanation:

The which is true about electronic waste is minerals can be extracted from recycled electronics.

The waste which are the residue of the electrical devices which we used in our daily life is known as electronic waste.

In the electrical devices many metals and non metals are present and when we recycle this electrical waste then again we get that useful materials from the waste in the form of minerals, because all that metals, non metals or any other element will get in combined form.

Hence, option (d) is correct.

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Answer:

friction

Explanation:

conduction doesn't really need much to start it. it basically has that reaction from the start so it's not conduction. Since heat is produced by friction in this situation it causes static to happen. so i think its friction

Answer:

Kc = [CaO] [O2] / [CaCO3]

Explanation:

Equilibrium constant, Kc is simply defined as the ratio of the concentration of products raised to their coefficient to the concentration of the reactants raised to their coefficient.

Thus, we can write the equation for the equilibrium constant, Kc for the reaction given in the question above as follow:

CaCO3(s) <==> CaO(s) + O2(g)

Kc = [CaO] [O2] / [CaCO3]

The numerical value of 4.49 kj/mol for K entering the frog muscle cell signifies the amount of energy required for the process to take place.

In this case, it represents the amount of energy required or released per mole of potassium ions (K⁺) as they move across the cell membrane into the muscle cell. In other words, this value represents the activation energy required for K⁺ to enter the cell. This energy is necessary to overcome the energy barrier that exists between the extracellular space and the intracellular space. Therefore, the higher the activation energy, the more difficult it is for K⁺ to enter the cell, and vice versa.

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Answer:

PLZ FOLLOWING ME.........................

ANSWER

The addition of HCl will shift to reactants

EXPLANATION

When some strong acid is added to a buffer, the equilibrium is shifted to the left, and the hydrogen ion concentration increases by less than expected for the amount of strong acid added. Buffer solution helps in adjusting the pH of a substance.

Since the HCl is a strong acid, it will shift to the left (reactant sides)

The coordination number for pb will be 12

Four atoms make up each unit cell of the face-centered cubic (fcc), which has a coordination number of 12. Two atoms make up each unit cell of the body-centered cubic (bcc), which has a coordination number of eight.

The number of atoms, ions, or molecules that a central atom or ion in a complex, coordination compound, or crystal holds as its closest neighbours.

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Answer:

mole

Explanation:

is a unit of amount of substance in the International System of Units, defined (since 2019) by fixing the Avogadro constant at the given value. Sometimes, the amount of substance is referred to as the chemical amount

Chemical energy is a form of potential energy because the energy stored in the chemical bonds can be used to generate work when they are broken down in exothermic reactions.

Chemical energy is a form of potential energy because the bonds of compounds (e.g. foods) may release energy when they are break down during enzymatic reactions, thereby storing potential energy that is transformed into kinetic energy.

In conclusion, chemical energy is a form of potential energy because the energy stored in the chemical bonds can be used to generate work when they are broken down in exothermic reactions.

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According to the question,16.2 kPa is equal to 0.16 atmospheres.

What is the atmospheres?

The atmosphere is the thin layer of gases and particles that surrounds Earth, protecting us from the sun’s harmful radiation and maintaining the planet’s temperature. It is composed of 78% nitrogen, 21% oxygen, 0.9% argon, 0.03% carbon dioxide, and trace amounts of other gases, as well as water vapour, dust, and other particles. The atmosphere works by trapping heat from the sun, allowing temperatures to remain relatively stable throughout the world. It also helps regulate the water cycle, ensuring that water remains available for life on Earth. The atmosphere also helps protect us from environmental hazards like ozone depletion and acid rain. In addition, it is home to many species of birds, insects, and other animals. Without the atmosphere, Earth would be a barren, lifeless planet.

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6H2 + P4 → 4PH3, is a balanced chemical reaction. The sum of the coefficients is 11.

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